[c-nsp] debug ip icmp - Only showing 1/2

[Tuc at T-B-O-H.NET]

Hi,

	3640 running 3600 Software (C3640-JK9S-M), Version 12.4(13a).

	I'm trying to prove either my router is dropping icmp, or
the path via a remote location is dropping icmp. I thought a simple
"debug ip icmp" would show me. I see the lines where I sent the
reply back to the originator, but I don't see where it comes in.

Dec 18 11:16:33 EST: ICMP: echo reply sent, src 192.168.75.49, dst 208.45.247.236
Dec 18 11:16:34 EST: ICMP: echo reply sent, src 192.168.75.49, dst 208.45.247.236
Dec 18 11:16:35 EST: ICMP: echo reply sent, src 192.168.75.49, dst 208.45.247.236
Dec 18 11:16:36 EST: ICMP: echo reply sent, src 192.168.75.49, dst 208.45.247.236
Dec 18 11:16:37 EST: ICMP: echo reply sent, src 192.168.75.49, dst 208.45.247.236

	(208.45.247.236 also has an alias of 192.168.75.1). My interface is set
to :

interface Ethernet0/0
 description SEABREEZE CONNECTIONS WIRELESS T-1
 ip address 192.168.75.49 255.255.255.0
 ip nat outside
 ip virtual-reassembly
 half-duplex

	and just to make sure the packet ONLY goes back via that interface :

ip route 208.45.247.236 255.255.255.255 192.168.75.1

	If I try from the router to ping the machine, I see :

Dec 18 11:27:58 EST: ICMP: echo reply rcvd, src 208.45.247.236, dst 192.168.75.49
Dec 18 11:27:58 EST: ICMP: echo reply rcvd, src 208.45.247.236, dst 192.168.75.49
Dec 18 11:27:58 EST: ICMP: echo reply rcvd, src 208.45.247.236, dst 192.168.75.49
Dec 18 11:27:58 EST: ICMP: echo reply rcvd, src 208.45.247.236, dst 192.168.75.49
Dec 18 11:27:58 EST: ICMP: echo reply rcvd, src 208.45.247.236, dst 192.168.75.49

	So I'm only seeing 1/2 the conversation it seems. Where should I
look?

		Thanks, Tuc