"Philippe VENAULT" <[email protected]> wrote:
I have a local network with a PC, my equipment and a switch.
IP Addr switch : 192.168.0.1
IP Addr PC : 192.168.0.2
IP Addr Equipment : 192.168.0.3
Ping from PC to equipment
first request : ARP => the PC searchs who is 192.168.0.3 ?
Reply : ARP => Equipment replys 192.168.0.3 is at 00:0a:35...(MAC ADDR)
Second request ICMP => Echo (Ping) Request from 192.168.0.2 to 192.168.0.3
reply : ICMP => Echo (Ping) Reply from 128.232.0.3 to 192.168.0.2
Let me see if I understood the problem. You're pinging from 192.168.0.2 to
192.168.0.3 and get a reply from 128.232.0.3? You conclude that from a
Wireshark trace? What's the MAC-src of the reply from 128.232.0.3? If it's
the MAC-src of the switch it cannot be from 128.232.0.3 since that's on
another LAN-segment. Right? Assuming your netmasks are correct.
So either you're misreading the trace incorrectly or a legit ICMP-echo-reply
from 128.232.0.3 just confused you, or an endian issue, or something else.
Did you use a display-filter (on MAC-address) in WireShark?
--gv
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