Changed IP's on a wan link, cant ping /telnet now ?

[zTargeTz]

I'm taking baby steps twards setting up OSPF, and in an attempt to create good summerisation I'm restructuring my IP scheme, on my first wan link change I screwed up Tacacs, Cant ping the address, cant telnet to it. I can telnet in if i use an address on the inside of far router

someone slap me in the back of my head and get me started, i've been staring at configs for 3 hours now and just dont get it

equipment involved is : 3662 <-->3745 &amp; sort of indirectly, a 4006 with a router blade (but i don't think it does anything right now but idle)

 

[zTargeTz]

it was the fire wall (pix 525) between the 3662 and 4006


connection went me -> 4006 -> 525 -> 3662 -> 3745

my tracerts were dieng at the 4006, so i figuredit was an inside route issue but it turned out to be a fire wall block.. lol