[CentOS] Clarification required for ICMP Error Message

[John Doe]

From: Balaji <balajisundar at midascomm.com>
>     Currently i am using CentOS4.4 Linux Release
>     I have getting the following message every 10 seconds on my screen
>     "kernel: 192.168.163.193 sent an invalid ICMP type 3, code 0 error 
> to a broadcast: 172.24.255.255 on eth0"
>     Can any one explain me about this problem

Google says type 3 code 0 is "Network unreachable".
So the machine on 192.168.163.193 is broadcasting on 172.24.255.255 that it cannot reach the network...

JD