发送1460长度数据:
You have mail in /var/spool/mail/root
node2:/root#tcpdump -S -i eth1 '((tcp) and (port 8080) and (host 192.168.137.2))'
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
16:36:06.960304 IP node2.37039 > node1.webcache: Flags [S], seq 2881256472, win 14600, options [mss 1460,sackOK,TS val 128808655 ecr 0,nop,wscale 7], length 0
16:36:06.960468 IP node1.webcache > node2.37039: Flags [S.], seq 2175213438, ack 2881256473, win 14480, options [mss 1460,sackOK,TS val 53812485 ecr 128808655,nop,wscale 6], length 0
16:36:06.960484 IP node2.37039 > node1.webcache: Flags [.], ack 2175213439, win 115, options [nop,nop,TS val 128808655 ecr 53812485], length 0
16:36:06.960575 IP node2.37039 > node1.webcache: Flags [.], seq 2881256473:2881257921, ack 2175213439, win 115, options [nop,nop,TS val 128808655 ecr 53812485], length 1448
16:36:06.960613 IP node2.37039 > node1.webcache: Flags [P.], seq 2881257921:2881257933, ack 2175213439, win 115, options [nop,nop,TS val 128808655 ecr 53812485], length 12
16:36:06.960697 IP node2.37039 > node1.webcache: Flags [F.], seq 2881257933, ack 2175213439, win 115, options [nop,nop,TS val 128808655 ecr 53812485], length 0
16:36:06.960725 IP node1.webcache > node2.37039: Flags [.], ack 2881257921, win 272, options [nop,nop,TS val 53812486 ecr 128808655], length 0
16:36:06.960729 IP node1.webcache > node2.37039: Flags [.], ack 2881257933, win 272, options [nop,nop,TS val 53812486 ecr 128808655], length 0
16:36:06.961410 IP node1.webcache > node2.37039: Flags [F.], seq 2175213439, ack 2881257934, win 272, options [nop,nop,TS val 53812486 ecr 128808655], length 0
16:36:06.961421 IP node2.37039 > node1.webcache: Flags [.], ack 2175213440, win 115, options [nop,nop,TS val 128808656 ecr 53812486], length 0