On Sat, Dec 11, 2010 at 05:36:46PM +0000, Chris G wrote:
The router thinks its WAN address is 172.23.75.228 but all the remote systems I connect to report my IP address as 91.87.217.68. When the router restarts for whatever reason the 172.23.75.228 will change but the 91.87.217.68 seems to be pretty constant.
172.23.* is in the rfc1918 private address space, hence why you can't route to it from the internet, there is most likely some kind of nat taking place on 91.87.217.68.
Adam