Saving captured packets – Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX Server Load Balancing Guide
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Using the debug filter command
B
Fragment offset(LSB 13 bits): 0 (0x00)
Time to live: 128 seconds/hops
IP protocol type: TCP (0x06)
Checksum: 0x4be2
IP address: 192.168.8.100 ---> 192.168.9.101
No option
Transmission Control Protocol
Port 3881 ---> 80
Sequence Number: 4047880147
Acknowledgement Number: 2434401980
Header Length(MSB 4 bits): 5 (32-bit word)
Reserved(LSB 4 bits): 0
Code: 0x18
RES: 0... ....
CON: .0.. ....
URG: ..0. ....
ACK: ...1 ....
PSH: .... 1...
RST: .... .0..
SYN: .... ..0.
FIN: .... ...0
Window: 64000
Checksum: 0xe90f
Urgent Pointer: 0x0000
Data:
0000: 47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 0d 0a | GET / HTTP/1.1..
0010: 48 6f 73 74 3a 20 31 39 32 2e 31 36 38 2e 38 2e | Host: 192.168.8.
0020: 32 32 32 0d 0a 41 63 63 65 70 74 3a 20 2a 2f 2a | 222..Accept: */*
0030: 0d 0a 0d 0a 00 00 00 00 00 00 00 00 00 00 00 00 | ................
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ................
0050: 00 00 00 00 00 00 00 00 | ........
The packet is leaving via port 3 (real server facing) and the IP header is showing the following:
•
source IP: 192.168.8.100
•
destination IP: 192.168.9.101
This is a packet coming from the client going to the real server.
Saving captured packets
After you captured packets and viewed them with the summary command, you can save them by
performing the following steps:
Virtual ADX(debug-filter-1-1)#pcap save
ASCII string file name
Virtual ADX(debug-filter-1-1)#pcap save a1
preparing pcap data file, please wait...
.Done
Virtual ADX(debug-filter-1-1)#end
Virtual ADX#
[detached]
[root@Virtual ADX]# cd /opt/ADX/pcap
[root@Virtual ADX pcap]# ls
a1.cap*