Ethernet LAN Packet Coming From Router Disappears

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Subject Author Date
Packet Coming From Router Disappears Will 06-24-06
Posted by Will on June 24, 2006, 2:45 am
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I have a host with a destination IP 172.16.10.24 on the same IP Class C and
same ethernet segment as one network adapter of a Windows firewall whose IP
is 172.16.10.5. I have a sniffer running on both firewall and destination
host. I see the packet leave the 172.16.10.5 interface. A sniffer at
172.16.10.24 never sees the packet arrive.

This only happens for a single protocol. Other packets appear to travel
the same path for different protocols and everything works.

How should I debug this to better understand where/how the packet is getting
eaten?

--
Will



Posted by William P.N. Smith on June 24, 2006, 8:38 am
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>This only happens for a single protocol. Other packets appear to travel
>the same path for different protocols and everything works.

Well, with _that_ protocol it's clearly <vendor>'s switch in the
middle wiring closet.

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