Wireshark-users: [Wireshark-users] Wireshark
Hello,
I just installed Wireshark on WinXP and I have a question. I have
Internet access through a cable modem and, thus, I have a LAN IP
address (192.168.1.102) as well as an Internet DHCP IP address. I
have a mail server running on my machine that is only visible to the
LAN. The various email clients on my machine (Eudora, Outlook, etc.)
seem to work fine using the LAN mail server for local email to each
other as well as the mail server supplied by my ISP for Internet
email. When I run Wireshark I can see all the email and other
activity between my LAN machine and the Internet but absolutely no
activity between my LAN mail server and any of the LAN mail clients,
even though they all send and receive LAN-only messages fine. I've
made sure that there are no filters turned on in Wireshark (at least
I don't see any). It seems like for LAN-only activity Wireshark
should be finding all kinds of packets where both the source and
destination addresses are the same, namely the LAN IP address, but it
only seems to find packets where one of the addresses is the LAN
address and the other is an Internet address. Since I don't know
much about the details of this stuff I'm probably missing something
simple. Any ideas would be appreciated.
Thanks,
Ray Mitchell
