I'm trying to troubleshoot some odd behavior and have discovered some
more odd behavior.  From a remote router I'm pinging two different
interfaces that are on the same network.  Here is the topology:

HQ<--------------> 675 <-------------------> 2600

The 675 is connected to a switch that is hanging of an ethernet port on
the 2600.  I've turned on ICMP debugging on the 2600.  The WAN side of
the 675 is 10.1.113.46 and the HQ side of that link is 10.1.113.254. 
The 2600 ethernet port is 10.9.100.70.  Look at this output when I try
to ping both locations:

11w6d: ICMP: echo reply sent, src 10.9.100.70, dst 10.1.113.46 
11w6d: ICMP: echo reply rcvd, src 10.1.113.46, dst 10.9.100.70 
11w6d: ICMP: echo reply sent, src 10.9.100.70, dst 10.1.113.46 
11w6d: ICMP: echo reply rcvd, src 10.1.113.46, dst 10.9.100.70 
11w6d: ICMP: echo reply sent, src 10.9.100.70, dst 10.1.113.46 
11w6d: ICMP: echo reply rcvd, src 10.1.113.46, dst 10.9.100.70 
11w6d: ICMP: echo reply sent, src 10.9.100.70, dst 10.1.113.46 
11w6d: ICMP: echo reply rcvd, src 10.1.113.46, dst 10.9.100.70 
11w6d: ICMP: echo reply sent, src 10.9.100.70, dst 10.1.113.46 
11w6d: ICMP: echo reply rcvd, src 10.1.113.46, dst 10.9.100.70 
11w6d: ICMP: echo reply rcvd, src 10.1.113.254, dst 10.9.100.70
11w6d: ICMP: echo reply rcvd, src 10.1.113.254, dst 10.9.100.70
11w6d: ICMP: echo reply rcvd, src 10.1.113.254, dst 10.9.100.70
11w6d: ICMP: echo reply rcvd, src 10.1.113.254, dst 10.9.100.70
11w6d: ICMP: echo reply rcvd, src 10.1.113.254, dst 10.9.100.70

For the first set, the router records the outgoing AND incoming icmp
packets.  whenever I ping the .254 address, the router does not record
the outgoing packets. 

What in the world would cause this? That just does not make any sense
to me.

While on this subject, the original problem I'm trying to solve is
this:  I can ping from HQ to the 2600 through the 675, yet I can't
telnet to it.  Before you flood me with the obvious, let me answer up
front:  No, this is not an access list problem as there are no access
lists present anywhere; and no, this is not a password issue.  The vty
passwords are set.  Besides, it's not even getting that far.  I can ping
the ethernet interface of the 2600 from HQ, but it times out when I try
to telnet to that interface.

Hmmm.....  I should start another thread so as not to confuse the
issue, but I just thought of something.  NAT is running on the 675 and I
wonder if NAT is treating the telnet requests differently than the ICMP
stuff.  Hmmm....  I need to check into that.

Thanks  as always!
John

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