Ok, I reinstalled linuxMCE with 2 cards and I still get the same problem.
I configure the WRT54G by connecting it to the external router (Time capsule / Air port)
After I change the IP address of WRT54G to 192.168.80.130 (step 3) I can not access the WRT54G anymore.
When the WRT54G is still connected to the external router, I can connect to it from PC1 at 22.214.171.124, but only if I wire the WRT54G to PC1
(In wireless connection, I can connect to the WRT54G network but cannot access the router)
However, when I connect the WRT54G to eth1 on PC2 (the Core) I cannot access or ping the WRT54G.
I tried restarting eth1:
sudo ifdown eth1
sudo ifup eth1
eth1 shows up in ifconfig:
eth1 Link encap:Ethernet HWaddr 00:80:c6:ee:11:73
inet addr:192.168.80.1 Bcast:192.168.80.255 Mask:255.255.255.0
inet6 addr: fe80::280:c6ff:feee:1173/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3850 errors:0 dropped:0 overruns:0 frame:0
TX packets:9232 errors:115957 dropped:0 overruns:0 carrier:115957
RX bytes:245158 (245.1 KB) TX bytes:414561 (414.5 KB)
Interrupt:21 Base address:0xb800
ip neigh show
192.168.80.130 dev eth1 FAILED
Any help would be greatly appreciated