freebsd networking issues

[gahn]

hello:

i have two interfaces installed on my freebsd machine (desktop); one is wireless (ath0, facing the internet, 192.168.1.10/24) and another is internal (fxp0, 192.168.2.1/24). the internet facing interface of the freebsd works fine: from my xp laptop (192.168.1.2), i can ping the interface of freebsd (ath0, facing internet, 192.168.1.10). also from the freebsd machine, i can ping the default gateway (192.168.1.1) and get access to internet. 

but the second interface doesn't work. from the freebsd machine, i can't ping anywhere on the 192.168.2.0/24 except own ip address. with "arp -a" on freebsd, i can only see mac address of own interface (fxp0), but not mac addresses of other machinese on the net 192.168.2.0/24.

i connected internet side directly (without ath0) with fxp0 and the interface works fine.

the bottom line is: on the net 192.168.2.0/24, i can't see any mac addresses. 

in the file /etc/rc.conf, i have the line "gateway_enbale="YES"" but i don't think it matters since i have no intention to use the freebsd machine as a router anyway.

any ideas?

thanks in advance.