[squid-users] Network problems, ARP related

Hi list,
I have a question, not really about squid but I think someone maybe
solved it before, so I post it here to hope to get the solution. I'm
sorry if it bother you.
I trying install a squid box based on newest debian amd64 to become
transparent proxy. I have two NIC on box. Both of them and the rest of
LAN + router connect to same switch. The topo is:
          NIC1-----------------------------------Sw------------------------LAN
SQUID it
          NIC 2----------------------------------ch-----------------------Router--------------------------Internet

NIC1 and NIC 2 on different subnet. (NIC 1 on LAN subnet, NIC 2 on
router subnet)

The problem is: when I send a ARP request from one host in LAN to NIC
1 I always get MAC address of NIC 2. Wireshark gave it more clear:
Both of NIC response to request with its own MAC address. And I have
some stranger problems: Some host on LAN disconnected to the Web
(still ping, still ssh... but no web, maybe it is squid
misconfiguration, I'm not sure) for a while. /var/log/messages full of
logs on any ARP broadcast from the LAN. I try google and guess it is
something ppl called arp flux, but unsure.
Have you got any idea about that.
Thanks for any helping.
-giobuon
Received on Wed Jun 10 2009 - 23:44:57 MDT