what is a ICMP echo request?

tjyorkshire · 07-03-2007, 08:05 AM

when i do a tcpdump on my wireless network card i get the following every second:

Code:

14:02:25.052109 IP 192.168.0.5 > 192.168.0.1: ICMP echo request, id 53521, seq 9394, length 64
14:02:25.055115 IP 192.168.0.1 > 192.168.0.5: ICMP echo reply, id 53521, seq 9394, length 64

its only started doing this since i set up my interface to use a static ip. It doesn't seem to be affecting anything, i just wondered what it means and why it is there? (and if means i may need to fix anything?)

bsdunix · 07-03-2007, 08:19 AM

Your getting pinged.

http://en.wikipedia.org/wiki/Ping

tjyorkshire · 07-03-2007, 09:39 AM

oh.... you got any idea why my router would be pinging me every second?

bsdunix · 07-03-2007, 11:05 AM

You sure this is your 192.168.0.5 router? Maybe you've attached to someone's unsecured AP? If it is your AP, what type of router is it?

tjyorkshire · 07-03-2007, 11:12 AM

sorry, ive got that the wrong way round. Im 192.168.0.5 and the router is 192.168.0.1 - so for some reason i seem to be pinging the router... without knowing it