ICMP Type 3 Code 3

[Gott]

I was trying to troubleshoot a problem earlier and I noticed this:

IP's/name's have been modified.

pixfirewall# debug icmp trace

ICMP trace on

Warning: this may cause problems on busy networks

pixfirewall# 719: ICMP unreachable (code 3) 192.168.10.10 > 192.168.10.1

720: ICMP unreachable (code 3) 192.168.10.10> 192.168.10.1

So I loaded up a saved net capture I see ICMP: Type 3 Code 3 responses. After doing some research, it looks like this response is due to a port scan. Keep in mind that 192.168.10.10 isn't assigned to any network interface which is why I'm a bit baffled by this.

Anyone have any ideas?

 

[Gott]

Ah, nevermind. I figured it out.