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125.7. debug

tcpdump -n -i eth0 port 80 or icmp or arp
		

正確的IP包


20:39:01.222810 IP 172.16.0.253.4086 > 172.16.0.1.www: S 4092656017:4092656017(0) win 65535 <mss 1460,nop,wscale 2,nop,nop,sackOK>
20:39:01.225684 IP 172.16.0.253.4086 > 172.16.0.1.www: . ack 3272377939 win 64240
20:39:01.225697 IP 172.16.0.1.www > 172.16.0.253.4086: S 3272377938:3272377938(0) ack 4092656018 win 5840 <mss 1460,nop,nop,sackOK,nop,wscale 1>
20:39:01.225726 IP 172.16.0.253.4086 > 172.16.0.1.www: P 1:186(185) ack 1 win 64240
20:39:01.246167 IP 172.16.0.1.www > 172.16.0.253.4086: . ack 186 win 3456
20:39:01.284672 IP 172.16.0.1.www > 172.16.0.253.4086: P 1:524(523) ack 186 win 3456
20:39:01.386049 IP 172.16.0.253.4086 > 172.16.0.1.www: . ack 524 win 64109