-w file

-i interface

-e print the link-level header on each dump line.

 

tcpdump host x.x.x.x or host x.x.x.x

 

 

[root@oracle self]# tcpdump host 112.x.x.x

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes

 

 

14:55:03.769016 IP 112.x.x.x.58114 > xxx.xxx.net.sunrpc: S 2692676710:2692676710(0) win 5840 <mss 1460,sackOK,timestamp 238192638 0,nop,wscale 6>

14:55:03.774083 IP xxx.xxx.net.sunrpc > 112.x.x.x.58114: R 0:0(0) ack 2692676711 win 0

 

 

 

 

[byoungguk:월  2월 07 14:51:49 @~]$ telnet x.x.x.x111

Trying x.x.x.x...

telnet: Unable to connect to remote host: Connection refused

[byoungguk:월  2월 07 14:51:58 @~]$