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Configuration Examples for Wireshark
Case: Displaying a Brief Output from a .pcap File
You can display the output from a .pcap file by entering:
Device # show monitor capture file flash:mycap.pcap brief Starting the bundle display ........ Press Ctrl + Shift + half dozen to get out i 0.000000000 x.10.10.2 -> ten.10.10.one ICMP 114 Echo (ping) request id=0x002e, seq=0/0, ttl=254 ii 0.000051000 10.x.10.ane -> x.10.x.2 ICMP 114 Echo (ping) reply id=0x002e, seq=0/0, ttl=255 (asking in i) 3 0.000908000 10.10.ten.ii -> 10.10.10.ane ICMP 114 Echo (ping) request id=0x002e, seq=one/256, ttl=254 four 0.001782000 10.10.10.1 -> 10.10.x.2 ICMP 114 Echo (ping) respond id=0x002e, seq=1/256, ttl=255 (request in three) five 0.002961000 10.10.10.2 -> x.10.x.i ICMP 114 Repeat (ping) request id=0x002e, seq=two/512, ttl=254 half dozen 0.003676000 10.10.x.1 -> x.ten.x.2 ICMP 114 Repeat (ping) respond id=0x002e, seq=two/512, ttl=255 (request in 5) seven 0.004835000 10.10.ten.2 -> 10.10.10.one ICMP 114 Echo (ping) request id=0x002e, seq=3/768, ttl=254 viii 0.005579000 10.10.10.1 -> 10.10.10.2 ICMP 114 Repeat (ping) reply id=0x002e, seq=3/768, ttl=255 (request in seven) 9 0.006850000 10.10.10.2 -> ten.x.ten.1 ICMP 114 Echo (ping) request id=0x002e, seq=four/1024, ttl=254 x 0.007586000 10.10.10.1 -> x.10.10.two ICMP 114 Echo (ping) answer id=0x002e, seq=4/1024, ttl=255 (asking in ix) 11 0.008768000 10.ten.10.2 -> x.10.x.i ICMP 114 Echo (ping) asking id=0x002e, seq=5/1280, ttl=254 12 0.009497000 x.10.10.i -> 10.10.x.ii ICMP 114 Echo (ping) respond id=0x002e, seq=5/1280, ttl=255 (request in 11) 13 0.010695000 x.10.10.two -> 10.10.10.one ICMP 114 Echo (ping) asking id=0x002e, seq=6/1536, ttl=254 fourteen 0.011427000 10.10.10.i -> 10.10.10.two ICMP 114 Echo (ping) reply id=0x002e, seq=6/1536, ttl=255 (asking in xiii) 15 0.012728000 x.10.10.2 -> 10.x.x.1 ICMP 114 Echo (ping) asking id=0x002e, seq=7/1792, ttl=254 16 0.013458000 10.10.10.1 -> 10.x.ten.2 ICMP 114 Echo (ping) respond id=0x002e, seq=7/1792, ttl=255 (request in fifteen) 17 0.014652000 10.10.10.2 -> x.10.10.1 ICMP 114 Echo (ping) request id=0x002e, seq=8/2048, ttl=254 18 0.015394000 10.10.10.one -> ten.10.x.two ICMP 114 Echo (ping) reply id=0x002e, seq=8/2048, ttl=255 (asking in 17) 19 0.016682000 10.10.10.2 -> x.10.10.1 ICMP 114 Echo (ping) asking id=0x002e, seq=9/2304, ttl=254 20 0.017439000 10.10.ten.ane -> 10.ten.x.two ICMP 114 Repeat (ping) reply id=0x002e, seq=9/2304, ttl=255 (request in 19) 21 0.018655000 10.10.10.two -> 10.10.10.1 ICMP 114 Echo (ping) asking id=0x002e, seq=x/2560, ttl=254 22 0.019385000 x.ten.10.1 -> x.ten.10.2 ICMP 114 Echo (ping) reply id=0x002e, seq=10/2560, ttl=255 (request in 21) 23 0.020575000 10.10.x.2 -> x.10.10.one ICMP 114 Echo (ping) asking id=0x002e, seq=11/2816, ttl=254 --More‹ Example: Displaying Detailed Output from a .pcap File
You can display the detailed .pcap file output by entering:
Device # show monitor capture file flash:mycap.pcap detailed Starting the packet brandish ........ Printing Ctrl + Shift + half-dozen to exit Frame ane: 114 bytes on wire (912 bits), 114 bytes captured (912 bits) on interface 0 Interface id: 0 Encapsulation type: Ethernet (1) Arrival Time: Nov 6, 2015 eleven:44:48.322497000 UTC [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1446810288.322497000 seconds [Time delta from previous captured frame: 0.000000000 seconds] [Fourth dimension delta from previous displayed frame: 0.000000000 seconds] [Fourth dimension since reference or get-go frame: 0.000000000 seconds] Frame Number: i Frame Length: 114 bytes (912 bits) Capture Length: 114 bytes (912 bits) [Frame is marked: Fake] [Frame is ignored: Faux] [Protocols in frame: eth:ip:icmp:data] Ethernet 2, Src: Cisco_f3:63:46 (00:e1:6d:f3:63:46), Dst: Cisco_31:f1:c6 (00:e1:6d:31:f1:c6) Destination: Cisco_31:f1:c6 (00:e1:6d:31:f1:c6) Accost: Cisco_31:f1:c6 (00:e1:6d:31:f1:c6) .... ..0. .... .... .... .... = LG fleck: Globally unique address (manufactory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: Cisco_f3:63:46 (00:e1:6d:f3:63:46) Address: Cisco_f3:63:46 (00:e1:6d:f3:63:46) .... ..0. .... .... .... .... = LG bit: Globally unique accost (manufacturing plant default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IP (0x0800) Cyberspace Protocol Version iv, Src: 10.10.10.ii (10.10.10.two), Dst: 10.10.10.1 (10.10.10.1) Version: iv Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00: Non-ECT (Not ECN-Capable Transport)) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..00 = Explicit Congestion Notification: Non-ECT (Not ECN-Capable Ship) (0x00) Total Length: 100 Identification: 0x04ba (1210) Flags: 0x00 0... .... = Reserved bit: Non gear up .0.. .... = Don't fragment: Not set ..0. .... = More fragments: Not set up Fragment offset: 0 Time to live: 254 Protocol: ICMP (1) Header checksum: 0x8fc8 [validation disabled] [Good: False] [Bad: False] Source: 10.10.ten.ii (10.10.10.2) Destination: x.10.10.ane (10.x.10.1) Cyberspace Command Message Protocol Type: 8 (Echo (ping) request) Code: 0 Checksum: 0xe4db [correct] Identifier (Be): 46 (0x002e) Identifier (LE): 11776 (0x2e00) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) Information (72 bytes) 0000 00 00 00 00 09 c9 8f 77 ab cd ab cd ab cd ab cd .......w........ 0010 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0020 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0030 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0040 ab cd ab cd ab cd ab cd ........ Data: 0000000009c98f77abcdabcdabcdabcdabcdabcdabcdabcd... [Length: 72] Frame 2: 114 bytes on wire (912 bits), 114 bytes captured (912 bits) on interface 0 Interface id: 0 Case: Displaying a Package Dump Output from a .pcap File.
Yous tin can brandish the packet dump output by entering:
Device # show monitor capture file flash:mycap.pcap dump Starting the packet brandish ........ Printing Ctrl + Shift + 6 to leave 0000 00 e1 6d 31 f1 c6 00 e1 6d f3 63 46 08 00 45 00 ..m1....g.cF..E. 0010 00 64 04 ba 00 00 fe 01 8f c8 0a 0a 0a 02 0a 0a .d.............. 0020 0a 01 08 00 e4 db 00 2e 00 00 00 00 00 00 09 c9 ................ 0030 8f 77 ab cd ab cd ab cd ab cd ab cd ab cd ab cd .westward.............. 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0050 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0060 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0070 ab cd .. 0000 00 e1 6d 31 f1 80 00 e1 6d 31 f1 lxxx 08 00 45 00 ..m1....m1....Due east. 0010 00 64 04 ba 00 00 ff 01 8e c8 0a 0a 0a 01 0a 0a .d.............. 0020 0a 02 00 00 ec db 00 2e 00 00 00 00 00 00 09 c9 ................ 0030 8f 77 ab cd ab cd ab cd ab cd ab cd ab cd ab cd .west.............. 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0050 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0060 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0070 ab cd .. 0000 00 e1 6d 31 f1 c6 00 e1 6d f3 63 46 08 00 45 00 ..m1....m.cF..E. 0010 00 64 04 bb 00 00 fe 01 8f c7 0a 0a 0a 02 0a 0a .d.............. 0020 0a 01 08 00 e4 d7 00 2e 00 01 00 00 00 00 09 c9 ................ 0030 8f 7a ab cd ab cd ab cd ab cd ab cd ab cd ab cd .z.............. 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ Example: Displaying Packets from a .pcap File using a Brandish Filter
You can brandish the .pcap file packets output by entering:
Device # prove monitor capture file flash:mycap.pcap brandish-filter "ip.src == x.x.x.2" brief Starting the packet display ........ Press Ctrl + Shift + 6 to get out 1 0.000000000 ten.ten.10.2 -> 10.ten.ten.1 ICMP 114 Echo (ping) request id=0x002e, seq=0/0, ttl=254 three 0.000908000 ten.10.10.two -> 10.10.10.1 ICMP 114 Repeat (ping) request id=0x002e, seq=one/256, ttl=254 5 0.002961000 10.10.10.2 -> 10.10.10.1 ICMP 114 Echo (ping) asking id=0x002e, seq=2/512, ttl=254 7 0.004835000 10.x.x.2 -> 10.10.x.1 ICMP 114 Echo (ping) request id=0x002e, seq=3/768, ttl=254 9 0.006850000 10.ten.10.ii -> ten.ten.ten.1 ICMP 114 Repeat (ping) asking id=0x002e, seq=4/1024, ttl=254 11 0.008768000 10.x.10.2 -> x.x.10.one ICMP 114 Echo (ping) request id=0x002e, seq=v/1280, ttl=254 13 0.010695000 10.ten.10.2 -> 10.ten.10.1 ICMP 114 Echo (ping) request id=0x002e, seq=six/1536, ttl=254 fifteen 0.012728000 10.10.x.2 -> 10.10.10.one ICMP 114 Echo (ping) asking id=0x002e, seq=7/1792, ttl=254 17 0.014652000 10.10.10.2 -> 10.10.x.1 ICMP 114 Repeat (ping) request id=0x002e, seq=8/2048, ttl=254 nineteen 0.016682000 10.10.10.ii -> 10.x.10.i ICMP 114 Echo (ping) asking id=0x002e, seq=9/2304, ttl=254 21 0.018655000 10.10.x.2 -> ten.x.ten.1 ICMP 114 Repeat (ping) request id=0x002e, seq=ten/2560, ttl=254 23 0.020575000 10.10.10.2 -> 10.10.x.1 ICMP 114 Echo (ping) request id=0x002e, seq=11/2816, ttl=254 Example: Displaying the Number of Packets Captured in a .pcap File
You can brandish the number of packets captured in a .pcap file past inbound:
Device # prove monitor capture file wink:mycap.pcap packet-count File proper name: /flash/mycap.pcap Number of packets: 50 Instance: Displaying a Unmarried Packet Dump from a .pcap File
You lot tin brandish a unmarried bundle dump from a .pcap file by entering:
Device # show monitor capture file wink:mycap.pcap packet-number x dump Starting the packet display ........ Printing Ctrl + Shift + 6 to leave 0000 00 e1 6d 31 f1 80 00 e1 6d 31 f1 80 08 00 45 00 ..m1....m1....East. 0010 00 64 04 be 00 00 ff 01 8e c4 0a 0a 0a 01 0a 0a .d.............. 0020 0a 02 00 00 ec ce 00 2e 00 04 00 00 00 00 09 c9 ................ 0030 8f 80 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0050 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0060 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0070 ab cd Case: Displaying Statistics of Packets Captured in a .pcap File
Yous can brandish the statistics of the packets captured in a .pcap file by entering:
Device # show monitor capture file flash:mycap.pcap statistics "h225,counter" ================== H225 Message and Reason Counter ================== RAS-Messages: Call Signalling: ===================================================================== Example: Uncomplicated Capture and Display
This example shows how to monitor traffic in the Layer iii interface Gigabit Ethernet ane/0/1:
Pace one: Define a capture signal to match on the relevant traffic by entering:
Device # monitor capture mycap interface GigabitEthernet1/0/three in Device # monitor capture mycap friction match ipv4 any whatsoever Device # monitor capture mycap limit duration lx packets 50 Device # monitor capture mycap buffer size 100 To avoid high CPU utilization, a low parcel count and duration equally limits has been set.
Footstep two: Confirm that the capture point has been correctly divers by entering:
Device # prove monitor capture mycap parameter monitor capture mycap interface GigabitEthernet1/0/three in monitor capture mycap match ipv4 any whatever monitor capture mycap buffer size 100 monitor capture mycap limit packets 50 duration 60 Device # show monitor capture mycap Status Information for Capture mycap Target Type: Interface: GigabitEthernet1/0/iii, Management: in Status : Inactive Filter Details: IPv4 Source IP: whatsoever Destination IP: any Protocol: any Buffer Details: Buffer Type: LINEAR (default) Buffer Size (in MB): 100 File Details: File not associated Limit Details: Number of Packets to capture: 50 Packet Capture elapsing: 60 Packet Size to capture: 0 (no limit) Parcel sampling rate: 0 (no sampling) Step 3: Start the capture process and brandish the results.
Device # monitor capture mycap start display Starting the packet display ........ Press Ctrl + Shift + half dozen to go out one 0.000000 10.ten.x.2 -> 10.x.10.1 ICMP 114 Echo (ping) request id=0x0030, seq=0/0, ttl=254 2 0.003682 ten.10.10.2 -> 10.10.x.ane ICMP 114 Echo (ping) request id=0x0030, seq=ane/256, ttl=254 3 0.006586 10.10.10.2 -> 10.10.10.i ICMP 114 Echo (ping) request id=0x0030, seq=2/512, ttl=254 4 0.008941 x.10.ten.2 -> x.10.x.1 ICMP 114 Repeat (ping) request id=0x0030, seq=3/768, ttl=254 5 0.011138 x.10.10.2 -> 10.x.x.i ICMP 114 Repeat (ping) asking id=0x0030, seq=iv/1024, ttl=254 half dozen 0.014099 10.10.10.2 -> ten.x.ten.1 ICMP 114 Echo (ping) request id=0x0030, seq=five/1280, ttl=254 seven 0.016868 x.10.10.2 -> 10.10.ten.one ICMP 114 Repeat (ping) request id=0x0030, seq=vi/1536, ttl=254 eight 0.019210 10.10.ten.2 -> 10.10.10.1 ICMP 114 Repeat (ping) request id=0x0030, seq=seven/1792, ttl=254 9 0.024785 ten.10.x.two -> x.10.10.i ICMP 114 Echo (ping) request id=0x0030, seq=eight/2048, ttl=254 --More-- Step four: Delete the capture indicate by entering:
Device # no monitor capture mycap  Note | A finish control is not required in this particular case since we take set a limit and the capture will automatically stop one time that limit is reached. |
For more data on syntax to be used for pcap statistics, refer the "Additional References" section.
Example: Elementary Capture and Store
This example shows how to capture packets to a filter:
Step 1: Define a capture point to friction match on the relevant traffic and acquaintance information technology to a file by entering:
Device # monitor capture mycap interface GigabitEthernet1/0/3 in Device # monitor capture mycap match ipv4 whatsoever whatsoever Device # monitor capture mycap limit duration lx packets 50 Device # monitor capture mycap file location flash:mycap.pcap Stride 2: Confirm that the capture point has been correctly defined by entering:
Device # bear witness monitor capture mycap parameter monitor capture mycap interface GigabitEthernet1/0/3 in monitor capture mycap match ipv4 whatever whatsoever monitor capture mycap file location flash:mycap.pcap monitor capture mycap limit packets l duration threescore Device # prove monitor capture mycap Status Information for Capture mycap Target Type: Interface: GigabitEthernet1/0/3, Direction: in Status : Inactive Filter Details: IPv4 Source IP: any Destination IP: any Protocol: whatever Buffer Details: Buffer Type: LINEAR (default) File Details: Associated file name: wink:mycap.pcap Limit Details: Number of Packets to capture: 50 Bundle Capture duration: 60 Bundle Size to capture: 0 (no limit) Packet sampling rate: 0 (no sampling) Pace three: Launch packet capture by entering:
Device # monitor capture mycap start Step 4: Display extended capture statistics during runtime by entering:
Device # show monitor capture mycap capture-statistics Capture statistics collected at software: Capture duration - 15 seconds Packets received - xl Packets dropped - 0 Packets oversized - 0 Packets errored - 0 Packets sent - 40 Bytes received - 7280 Bytes dropped - 0 Bytes oversized - 0 Bytes errored - 0 Bytes sent ¬ 4560 Step 5: Later sufficient time has passed, stop the capture past entering:
Device # monitor capture mycap stop Capture statistics collected at software (Buffer & Wireshark): Capture duration - twenty seconds Packets received - 50 Packets dropped - 0 Packets oversized - 0 | Annotation | Alternatively, you could allow the capture performance end automatically after the time has elapsed or the packet count has been met. The mycap.pcap file now contains the captured packets. |
Step 6: Brandish extended capture statistics after stop by inbound:
Device # prove monitor capture mycap capture-statistics Capture statistics collected at software: Capture duration - 20 seconds Packets received - l Packets dropped - 0 Packets oversized - 0 Packets errored - 0 Packets sent - 50 Bytes received - 8190 Bytes dropped - 0 Bytes oversized - 0 Bytes errored - 0 Bytes sent ¬ 5130 Stride vii: Display the packets by entering:
Device # show monitor capture file flash:mycap.pcap Starting the packet display ........ Press Ctrl + Shift + 6 to leave 1 0.000000000 x.10.10.2 -> x.x.x.i ICMP 114 Echo (ping) asking id=0x0031, seq=0/0, ttl=254 two 0.002555000 10.10.ten.2 -> ten.10.x.1 ICMP 114 Echo (ping) request id=0x0031, seq=1/256, ttl=254 3 0.006199000 10.ten.10.ii -> ten.10.10.1 ICMP 114 Echo (ping) request id=0x0031, seq=2/512, ttl=254 4 0.009199000 ten.10.10.ii -> 10.x.10.ane ICMP 114 Echo (ping) asking id=0x0031, seq=three/768, ttl=254 5 0.011647000 10.10.10.2 -> 10.10.ten.1 ICMP 114 Repeat (ping) request id=0x0031, seq=4/1024, ttl=254 6 0.014168000 ten.x.10.2 -> 10.x.ten.1 ICMP 114 Echo (ping) request id=0x0031, seq=v/1280, ttl=254 7 0.016737000 10.x.x.2 -> 10.10.10.1 ICMP 114 Echo (ping) asking id=0x0031, seq=vi/1536, ttl=254 8 0.019403000 10.10.10.2 -> ten.10.10.1 ICMP 114 Echo (ping) request id=0x0031, seq=7/1792, ttl=254 nine 0.022151000 10.x.x.ii -> ten.10.10.1 ICMP 114 Echo (ping) request id=0x0031, seq=8/2048, ttl=254 10 0.024722000 ten.ten.10.ii -> 10.ten.10.1 ICMP 114 Echo (ping) request id=0x0031, seq=9/2304, ttl=254 xi 0.026890000 10.ten.10.ii -> 10.ten.x.i ICMP 114 Echo (ping) asking id=0x0031, seq=10/2560, ttl=254 12 0.028862000 10.10.10.2 -> x.x.10.1 ICMP 114 Echo (ping) request id=0x0031, seq=11/2816, ttl=254 --More than-- For more information on syntax to be used for pcap statistics, refer the "Boosted References" department.
Stride eight: Delete the capture indicate by entering:
Device # no monitor capture mycap Instance: Using Buffer Capture
This example shows how to utilise buffer capture:
Pace one: Launch a capture session with the buffer capture option by entering:
Device # monitor capture mycap interface GigabitEthernet1/0/3 in Device # monitor capture mycap match ipv4 whatsoever whatsoever Device # monitor capture mycap buffer circular size 1 Device # monitor capture mycap get-go Step 2: Determine whether the capture is active past entering:
Device # show monitor capture mycap Status Information for Capture mycap Target Type: Interface: GigabitEthernet1/0/3, Management: in Status : Active Filter Details: IPv4 Source IP: whatever Destination IP: any Protocol: whatever Buffer Details: Buffer Type: Circular Buffer Size (in MB): ane File Details: File not associated Limit Details: Number of Packets to capture: 0 (no limit) Packet Capture duration: 0 (no limit) Packet Size to capture: 0 (no limit) Maximum number of packets to capture per 2d: k Package sampling rate: 0 (no sampling) Step iii: Display extended capture statistics during runtime by inbound:
Device # evidence monitor capture mycap capture-statistics Capture statistics collected at software: Capture duration - 88 seconds Packets received - 1000 Packets dropped - 0 Packets oversized - 0 Packets errored - 0 Packets sent - thou Bytes received - 182000 Bytes dropped - 0 Bytes oversized - 0 Bytes errored - 0 Bytes sent - 114000 Stride 4: Stop the capture by entering:
Device # monitor capture mycap stop Capture statistics collected at software (Buffer): Capture elapsing - 2185 seconds Packets received - 51500 Packets dropped - 0 Packets oversized - 0 Step 5: Brandish extended capture statistics after stop by entering:
Device # show monitor capture mycap capture-statistics Capture statistics nerveless at software: Capture duration - 156 seconds Packets received - 2000 Packets dropped - 0 Packets oversized - 0 Packets errored - 0 Packets sent - 2000 Bytes received - 364000 Bytes dropped - 0 Bytes oversized - 0 Bytes errored - 0 Bytes sent - 228000 Step 6: Make up one's mind whether the capture is active past entering:
Device # testify monitor capture mycap Status Information for Capture mycap Target Blazon: Interface: GigabitEthernet1/0/iii, Management: in Status : Inactive Filter Details: IPv4 Source IP: whatever Destination IP: whatever Protocol: any Buffer Details: Buffer Type: Round Buffer Size (in MB): i File Details: File not associated Limit Details: Number of Packets to capture: 0 (no limit) Packet Capture duration: 0 (no limit) Packet Size to capture: 0 (no limit) Maximum number of packets to capture per second: one thousand Parcel sampling rate: 0 (no sampling) Step 7: Display the packets in the buffer by entering:
Device # show monitor capture mycap buffer cursory Starting the bundle display ........ Printing Ctrl + Shift + half-dozen to exit 1 0.000000 ten.x.ten.2 -> 10.10.ten.1 ICMP 114 Echo (ping) request id=0x0038, seq=40057/31132, ttl=254 ii 0.000030 10.x.10.two -> 10.10.10.i ICMP 114 Echo (ping) request id=0x0038, seq=40058/31388, ttl=254 3 0.000052 10.10.ten.2 -> ten.10.10.1 ICMP 114 Echo (ping) request id=0x0038, seq=40059/31644, ttl=254 4 0.000073 ten.ten.x.2 -> 10.10.x.one ICMP 114 Repeat (ping) request id=0x0038, seq=40060/31900, ttl=254 5 0.000094 ten.10.x.ii -> 10.10.ten.one ICMP 114 Echo (ping) request id=0x0038, seq=40061/32156, ttl=254 6 0.000115 10.10.10.2 -> ten.ten.10.i ICMP 114 Echo (ping) request id=0x0038, seq=40062/32412, ttl=254 seven 0.000137 x.ten.10.ii -> x.10.10.1 ICMP 114 Repeat (ping) asking id=0x0038, seq=40063/32668, ttl=254 8 0.000158 x.10.x.2 -> 10.10.10.i ICMP 114 Repeat (ping) request id=0x0038, seq=40064/32924, ttl=254 ix 0.000179 10.10.10.ii -> ten.10.10.1 ICMP 114 Repeat (ping) asking id=0x0038, seq=40065/33180, ttl=254 10 0.000200 10.10.10.2 -> 10.10.10.1 ICMP 114 Echo (ping) request id=0x0038, seq=40066/33436, ttl=254 11 0.000221 10.10.10.2 -> 10.10.10.one ICMP 114 Echo (ping) request id=0x0038, seq=40067/33692, ttl=254 12 0.000243 10.10.10.ii -> x.x.ten.i ICMP 114 Echo (ping) request id=0x0038, seq=40068/33948, ttl=254 --More than-- Notice that the packets have been buffered.
Step 8: Brandish the packets in other display modes.
Device # testify monitor capture mycap buffer detailed Starting the packet display ........ Press Ctrl + Shift + 6 to exit Frame 1: 114 bytes on wire (912 bits), 114 bytes captured (912 $.25) on interface 0 Interface id: 0 Encapsulation type: Ethernet (1) Arrival Time: Nov six, 2015 18:10:06.297972000 UTC [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1446833406.297972000 seconds [Time delta from previous captured frame: 0.000000000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Fourth dimension since reference or first frame: 0.000000000 seconds] Frame Number: 1 Frame Length: 114 bytes (912 bits) Capture Length: 114 bytes (912 bits) [Frame is marked: Faux] [Frame is ignored: False] [Protocols in frame: eth:ip:icmp:data] Ethernet 2, Src: Cisco_f3:63:46 (00:e1:6d:f3:63:46), Dst: Cisco_31:f1:c6 (00:e1:6d:31:f1:c6) Destination: Cisco_31:f1:c6 (00:e1:6d:31:f1:c6) Address: Cisco_31:f1:c6 (00:e1:6d:31:f1:c6) .... ..0. .... .... .... .... = LG bit: Globally unique address (mill default) .... ...0 .... .... .... .... = IG scrap: Individual address (unicast) Source: Cisco_f3:63:46 (00:e1:6d:f3:63:46) Address: Cisco_f3:63:46 (00:e1:6d:f3:63:46) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG fleck: Individual accost (unicast) Type: IP (0x0800) Internet Protocol Version four, Src: 10.10.10.2 (ten.10.x.2), Dst: 10.10.10.one (10.10.ten.i) Version: iv Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00: Not-ECT (Not ECN-Capable Transport)) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..00 = Explicit Congestion Notification: Non-ECT (Not ECN-Capable Transport) (0x00) Total Length: 100 Identification: 0xabdd (43997) Flags: 0x00 0... .... = Reserved bit: Not set .0.. .... = Don't fragment: Not set ..0. .... = More than fragments: Non ready Fragment start: 0 Time to live: 254 Protocol: ICMP (i) Header checksum: 0xe8a4 [validation disabled] [Good: False] [Bad: False] Source: 10.ten.ten.two (10.ten.10.ii) Destination: 10.10.ten.1 (10.10.10.1) Internet Control Message Protocol Type: 8 (Repeat (ping) request) Lawmaking: 0 Checksum: 0xa620 [correct] Identifier (BE): 56 (0x0038) Identifier (LE): 14336 (0x3800) Sequence number (BE): 40057 (0x9c79) Sequence number (LE): 31132 (0x799c) Information (72 bytes) 0000 00 00 00 00 0b 15 30 63 ab cd ab cd ab cd ab cd ......0c........ 0010 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0020 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0030 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0040 ab cd ab cd ab cd ab cd ........ Information: 000000000b153063abcdabcdabcdabcdabcdabcdabcdabcd... [Length: 72] Frame ii: 114 bytes on wire (912 bits), 114 bytes captured (912 bits) on interface 0 Device # show monitor capture mycap buffer dump Starting the packet display ........ Press Ctrl + Shift + 6 to exit 0000 00 e1 6d 31 f1 c6 00 e1 6d f3 63 46 08 00 45 00 ..m1....g.cF..E. 0010 00 64 ab dd 00 00 fe 01 e8 a4 0a 0a 0a 02 0a 0a .d.............. 0020 0a 01 08 00 a6 20 00 38 9c 79 00 00 00 00 0b 15 ..... .8.y...... 0030 30 63 ab cd ab cd ab cd ab cd ab cd ab cd ab cd 0c.............. 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0050 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0060 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0070 ab cd .. 0000 00 e1 6d 31 f1 c6 00 e1 6d f3 63 46 08 00 45 00 ..m1....chiliad.cF..E. 0010 00 64 ab de 00 00 iron 01 e8 a3 0a 0a 0a 02 0a 0a .d.............. 0020 0a 01 08 00 a6 1d 00 38 9c 7a 00 00 00 00 0b 15 .......8.z...... 0030 thirty 65 ab cd ab cd ab cd ab cd ab cd ab cd ab cd 0e.............. 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0050 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0060 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................ 0070 ab cd Stride ix: Articulate the buffer past entering:
Device # monitor capture mycap clear | Note | NOTE - Clearing the buffer deletes the buffer along with the contents. |
| Note | If you lot require the buffer contents to be displayed, run the clear commands after show commands. |
Footstep x: Restart the traffic, await for 10 seconds, then display the buffer contents by entering:
| Annotation | Nosotros cannot run evidence from buffer during an agile capture. Capture should be stopped before running show from buffer. Nosotros can even so run a show on a pcap file during an active capture in both file and buffer manner. In file fashion, we can display the packets in the current capture session's pcap file as well when the capture is active. |
Device # monitor capture mycap kickoff Switch# show monitor capture mycap Status Information for Capture mycap Target Type: Interface: GigabitEthernet1/0/3, Management: in Status : Active Filter Details: IPv4 Source IP: any Destination IP: whatsoever Protocol: whatever Buffer Details: Buffer Type: Round Buffer Size (in MB): ane File Details: File non associated Limit Details: Number of Packets to capture: 0 (no limit) Packet Capture duration: 0 (no limit) Packet Size to capture: 0 (no limit) Maximum number of packets to capture per second: 1000 Packet sampling charge per unit: 0 (no sampling) Step 11: Stop the packet capture and brandish the buffer contents past entering:
Device # monitor capture mycap stop Capture statistics nerveless at software (Buffer): Capture duration - 111 seconds Packets received - 5000 Packets dropped - 0 Packets oversized - 0 Footstep 12: Make up one's mind whether the capture is active past entering:
Device # show monitor capture mycap Status Information for Capture mycap Target Type: Interface: GigabitEthernet1/0/iii, Direction: in Status : Inactive Filter Details: IPv4 Source IP: any Destination IP: whatsoever Protocol: any Buffer Details: Buffer Type: CIRCULAR Buffer Size (in MB): i File Details: File not associated Limit Details: Number of Packets to capture: 0 (no limit) Packet Capture duration: 0 (no limit) Packet Size to capture: 0 (no limit) Maximum number of packets to capture per second: 1000 Package sampling rate: 0 (no sampling) Step 13: Brandish the packets in the buffer by inbound:
Device # show monitor capture mycap buffer brief Starting the packet display ........ Press Ctrl + Shift + six to leave one 0.000000000 10.10.10.2 -> ten.ten.10.ane ICMP 114 Repeat (ping) request id=0x0039, seq=0/0, ttl=254 2 0.000030000 10.10.10.2 -> 10.10.10.ane ICMP 114 Repeat (ping) request id=0x0039, seq=1/256, ttl=254 three 0.000051000 x.10.10.2 -> ten.10.10.one ICMP 114 Echo (ping) request id=0x0039, seq=two/512, ttl=254 4 0.000072000 10.10.10.2 -> 10.10.x.ane ICMP 114 Echo (ping) request id=0x0039, seq=3/768, ttl=254 5 0.000093000 10.ten.10.two -> x.10.x.one ICMP 114 Repeat (ping) request id=0x0039, seq=4/1024, ttl=254 6 0.000114000 10.10.x.ii -> 10.10.ten.ane ICMP 114 Repeat (ping) request id=0x0039, seq=5/1280, ttl=254 seven 0.000136000 10.10.10.2 -> ten.ten.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=6/1536, ttl=254 eight 0.000157000 10.ten.ten.2 -> x.10.10.1 ICMP 114 Echo (ping) asking id=0x0039, seq=7/1792, ttl=254 nine 0.000178000 ten.10.ten.2 -> x.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=8/2048, ttl=254 10 0.000199000 10.10.x.2 -> 10.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=ix/2304, ttl=254 11 0.000220000 ten.10.ten.two -> 10.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=10/2560, ttl=254 12 0.000241000 ten.x.x.2 -> ten.x.ten.1 ICMP 114 Repeat (ping) request id=0x0039, seq=xi/2816, ttl=254 --More‹ Step 14: Store the buffer contents to the mycap.pcap file in the internal wink: storage device past inbound:
Device # monitor capture mycap export flash:mycap.pcap Exported Successfully | Annotation | The current implementation of export is such that when the command is run, export is "started" but not complete when it returns the prompt to the user. So we have to wait for a bulletin display on the panel from Wireshark before information technology can run a brandish of packets in the file. |
Step 15: Display capture packets from the file by entering:
Device # show monitor capture file flash:mycap.pcap Starting the package display ........ Printing Ctrl + Shift + 6 to exit ane 0.000000000 10.10.10.2 -> 10.x.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=0/0, ttl=254 2 0.000030000 10.10.10.2 -> ten.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=1/256, ttl=254 iii 0.000051000 10.10.10.ii -> 10.10.10.ane ICMP 114 Echo (ping) request id=0x0039, seq=2/512, ttl=254 four 0.000072000 10.ten.10.2 -> 10.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=iii/768, ttl=254 five 0.000093000 10.10.10.2 -> 10.10.10.one ICMP 114 Repeat (ping) request id=0x0039, seq=4/1024, ttl=254 vi 0.000114000 ten.10.10.two -> 10.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=5/1280, ttl=254 seven 0.000136000 10.10.10.2 -> x.10.10.1 ICMP 114 Echo (ping) request id=0x0039, seq=6/1536, ttl=254 eight 0.000157000 ten.x.x.ii -> ten.10.10.one ICMP 114 Echo (ping) request id=0x0039, seq=seven/1792, ttl=254 9 0.000178000 10.10.10.2 -> ten.10.10.1 ICMP 114 Echo (ping) asking id=0x0039, seq=8/2048, ttl=254 10 0.000199000 10.10.x.two -> 10.10.ten.one ICMP 114 Echo (ping) request id=0x0039, seq=nine/2304, ttl=254 11 0.000220000 10.10.10.ii -> 10.10.ten.1 ICMP 114 Echo (ping) request id=0x0039, seq=10/2560, ttl=254 12 0.000241000 10.10.10.2 -> 10.x.ten.one ICMP 114 Echo (ping) request id=0x0039, seq=11/2816, ttl=254 --More-- Stride 16: Delete the capture point by entering:
Device # no monitor capture mycap Example: Uncomplicated Capture and Store of Packets in Egress Management
This example shows how to capture packets to a filter:
Step one: Define a capture point to match on the relevant traffic and associate it to a file by entering:
Device # monitor capture mycap interface Gigabit i/0/ane out match ipv4 whatever any Device # monitor capture mycap limit duration sixty packets 100 Device # monitor capture mycap file location wink:mycap.pcap buffer-size xc Step two: Confirm that the capture point has been correctly defined by entering:
Device # evidence monitor capture mycap parameter monitor capture mycap interface GigabitEthernet1/0/1 out monitor capture mycap match ipv4 whatever whatsoever monitor capture mycap file location flash:mycap.pcap buffer-size ninety monitor capture mycap limit packets 100 duration threescore Device # show monitor capture mycap Status Information for Capture mycap Target Type: Interface: GigabitEthernet1/0/1, Management: out Condition : Inactive Filter Details: IPv4 Source IP: any Destination IP: whatsoever Protocol: any Buffer Details: Buffer Type: LINEAR (default) File Details: Associated file name: flash:mycap.pcap Size of buffer(in MB): 90 Limit Details: Number of Packets to capture: 100 Packet Capture duration: 60 Package Size to capture: 0 (no limit) Packets per second: 0 (no limit) Packet sampling rate: 0 (no sampling) Stride 3: Launch packet capture past entering:
Device # monitor capture mycap start A file by the same capture file name already exists, overwrite?[confirm] Turning on lock-pace style Device # *Oct 14 09:35:32.661: %BUFCAP-6-ENABLE: Capture Point mycap enabled. | Note | Allow the capture performance stop automatically after the time has elapsed or the packet count has been met. When you meet the following bulletin in the output, will know that the capture operation has stopped: The mycap.pcap file now contains the captured packets. |
Step 4: Brandish the packets by entering:
Device # testify monitor capture file flash:mycap.pcap Starting the packet display ........ Press Ctrl + Shift + 6 to exit 0.000000 10.1.one.xxx -> 20.i.ane.2 UDP Source port: 20001 Destination port: 20002 1.000000 ten.1.1.31 -> 20.1.ane.two UDP Source port: 20001 Destination port: 20002 2.000000 10.1.1.32 -> twenty.i.1.2 UDP Source port: 20001 Destination port: 20002 3.000000 ten.1.i.33 -> xx.1.1.2 UDP Source port: 20001 Destination port: 20002 four.000000 10.one.one.34 -> xx.1.1.two UDP Source port: 20001 Destination port: 20002 5.000000 x.1.1.35 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002 half-dozen.000000 x.1.1.36 -> 20.1.ane.2 UDP Source port: 20001 Destination port: 20002 7.000000 10.1.ane.37 -> 20.i.1.2 UDP Source port: 20001 Destination port: 20002 eight.000000 ten.i.ane.38 -> xx.1.one.2 UDP Source port: 20001 Destination port: 20002 9.000000 10.1.1.39 -> 20.one.1.two UDP Source port: 20001 Destination port: 20002 Pace 5: Delete the capture point past inbound:
Device # no monitor capture mycap Configuration Examples for Embedded Parcel Capture
Example: Managing Packet Data Capture
The following instance shows how to manage parcel data capture:
Device > enable Device # monitor capture mycap kickoff Device # monitor capture mycap access-list v4acl Device # monitor capture mycap limit duration 1000 Device # monitor capture mycap interface GigabitEthernet 0/0/1 both Device # monitor capture mycap buffer circular size ten Device # monitor capture mycap showtime Device # monitor capture mycap export tftp://10.1.88.9/mycap.pcap Device # monitor capture mycap stop Device # cease Example: Monitoring and Maintaining Captured Data
Device # show monitor capture mycap buffer dump Starting the parcel display ........ Press Ctrl + Shift + 6 to get out 0 0000: 01005E00 00020000 0C07AC1D 080045C0 ..^...........Due east. 0010: 00300000 00000111 CFDC091D 0002E000 .0.............. 0020: 000207C1 07C1001C 802A0000 10030AFA .........*...... 0030: 1D006369 73636F00 0000091D 0001 ..example....... one 0000: 01005E00 0002001B 2BF69280 080046C0 ..^.....+.....F. 0010: 00200000 00000102 44170000 0000E000 . ......D....... 0020: 00019404 00001700 E8FF0000 0000 .............. two 0000: 01005E00 0002001B 2BF68680 080045C0 ..^.....+.....E. 0010: 00300000 00000111 CFDB091D 0003E000 .0.............. 0020: 000207C1 07C1001C 88B50000 08030A6E ...............n 0030: 1D006369 73636F00 0000091D 0001 ..example....... 3 0000: 01005E00 000A001C 0F2EDC00 080045C0 ..^...........E. 0010: 003C0000 00000258 CE7F091D 0004E000 .<.....10........ 0020: 000A0205 F3000000 00000000 00000000 ................ 0030: 00000000 00D10001 000C0100 01000000 ................ 0040: 000F0004 00080501 0300 Device # show monitor capture mycap parameter monitor capture mycap interface GigabitEthernet i/0/one both monitor capture mycap match any monitor capture mycap buffer size 10 monitor capture mycap limit pps thou Device # debug epc capture-bespeak EPC capture indicate operations debugging is on Device # monitor capture mycap outset *Jun 4 xiv:17:15.463: EPC CP: Starting the capture cap1 *Jun 4 xiv:17:xv.463: EPC CP: (brief=3, detailed=4, dump=five) = 0 *Jun 4 14:17:15.463: EPC CP: final check before activation *Jun 4 14:17:xv.463: EPC CP: setting up c3pl infra *Jun four 14:17:15.463: EPC CP: Setup c3pl acl-class-policy *Jun four 14:17:xv.463: EPC CP: Creating a class *Jun 4 14:17:15.464: EPC CP: Creating a form : Successful *Jun 4 14:17:15.464: EPC CP: course-map Created *Jun iv 14:17:xv.464: EPC CP: creating policy-name epc_policy_cap1 *Jun four 14:17:15.464: EPC CP: Creating Policy epc_policy_cap1 of type 49 and customer type 21 *Jun iv 14:17:15.464: EPC CP: Storing a Policy *Jun iv 14:17:fifteen.464: EPC CP: calling ppm_store_policy with epc_policy *Jun iv 14:17:xv.464: EPC CP: Creating Policy : Successful *Jun 4 14:17:15.464: EPC CP: policy-map created *Jun four xiv:17:xv.464: EPC CP: creating filter for ANY *Jun 4 14:17:15.464: EPC CP: Adding acl to course : Successful *Jun 4 14:17:15.464: EPC CP: Setup c3pl class to policy *Jun 4 fourteen:17:fifteen.464: EPC CP: Attaching Class to Policy *Jun iv 14:17:fifteen.464: EPC CP: Attaching epc_class_cap1 to epc_policy_cap1 *Jun 4 14:17:15.464: EPC CP: Attaching Course to Policy : Successful *Jun iv 14:17:15.464: EPC CP: setting upwardly c3pl qos *Jun 4 14:17:xv.464: EPC CP: DBG> Ready packet rate limit to yard *Jun 4 14:17:15.464: EPC CP: creating action for policy_map epc_policy_cap1 class_map epc_class_cap1 *Jun four 14:17:15.464: EPC CP: DBG> Set up packet charge per unit limit to 1000 *Jun 4 fourteen:17:15.464: EPC CP: Activating Interface GigabitEthernet1/0/1 direction both *Jun 4 14:17:fifteen.464: EPC CP: Id fastened 0 *Jun 4 14:17:15.464: EPC CP: inserting into active lists *Jun four 14:17:xv.464: EPC CP: Id attached 0 *Jun 4 14:17:15.465: EPC CP: inserting into active lists *Jun 4 fourteen:17:15.465: EPC CP: Activating Vlan *Jun 4 fourteen:17:15.465: EPC CP: Deleting all temp interfaces *Jun 4 14:17:fifteen.465: %BUFCAP-half dozen-ENABLE: Capture Point cap1 enabled. *Jun 4 fourteen:17:xv.465: EPC CP: Active Capture 1 Device # monitor capture mycap1 stop *Jun 4 14:17:31.963: EPC CP: Stopping the capture cap1 *Jun 4 xiv:17:31.963: EPC CP: Warning: unable to unbind capture cap1 *Jun 4 xiv:17:31.963: EPC CP: Deactivating policy-map *Jun 4 14:17:31.963: EPC CP: Policy epc_policy_cap1 *Jun 4 14:17:31.964: EPC CP: Deactivating policy-map Successful *Jun 4 14:17:31.964: EPC CP: removing povision feature *Jun iv 14:17:31.964: EPC CP: Constitute action for policy-map epc_policy_cap1 class-map epc_class_cap1 *Jun 4 14:17:31.964: EPC CP: cleanning up c3pl infra *Jun iv 14:17:31.964: EPC CP: Removing Class epc_class_cap1 from Policy *Jun four fourteen:17:31.964: EPC CP: Removing Class from epc_policy_cap1 *Jun 4 14:17:31.964: EPC CP: Successfully removed *Jun 4 14:17:31.964: EPC CP: Removing acl mac from class *Jun 4 14:17:31.964: EPC CP: Removing acl from class : Successful *Jun 4 14:17:31.964: EPC CP: Removing all policies *Jun iv fourteen:17:31.964: EPC CP: Removing Policy epc_policy_cap1 *Jun iv xiv:17:31.964: EPC CP: Removing Policy : Successful *Jun iv 14:17:31.964: EPC CP: Removing course epc_class_cap1 *Jun 4 14:17:31.965: EPC CP: Removing class : Successful *Jun 4 14:17:31.965: %BUFCAP-half-dozen-DISABLE: Capture Point cap1 disabled. *Jun 4 14:17:31.965: EPC CP: Active Capture 0 Device # debug epc provision EPC provisionioning debugging is on Device # monitor capture mycap outset *Jun four 14:17:54.991: EPC PROV: No action found for policy-map epc_policy_cap1 class-map epc_class_cap1 *Jun 4 fourteen:17:54.991: EPC PROV: *Jun 4 fourteen:17:54.991: Attempting to install service policy epc_policy_cap1 *Jun 4 14:17:54.992: EPC PROV: Attached service policy to epc idb subblock *Jun four 14:17:54.992: EPC PROV: Successful. Create feature object *Jun iv fourteen:17:54.992: EPC PROV: *Jun iv 14:17:54.992: Attempting to install service policy epc_policy_cap1 *Jun 4 fourteen:17:54.992: EPC PROV: Successful. Create characteristic object *Jun iv 14:17:54.992: %BUFCAP-6-ENABLE: Capture Point cap1 enabled. Device # monitor capture mycap stop *Jun 4 14:18:02.503: EPC PROV: Successful. Remove feature object *Jun 4 14:xviii:02.504: EPC PROV: Successful. Remove characteristic object *Jun 4 xiv:18:02.504: EPC PROV: Destroyed epc idb subblock *Jun 4 14:18:02.504: EPC PROV: Found action for policy-map epc_policy_cap1 class-map epc_class_cap1 *Jun iv xiv:18:02.504: EPC PROV: Deleting EPC activity *Jun 4 14:18:02.504: EPC PROV: Successful. CLASS_REMOVE, policy-map epc_policy_cap1, form epc_class_cap1 *Jun 4 fourteen:18:02.504: %BUFCAP-vi-DISABLE: Capture Point cap1 disabled. Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3650/software/release/16-1/configuration_guide/b_161_consolidated_3650_cg/b_161_consolidated_3650_cg_chapter_0110000.html
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