Very simple scenario:
r1 fa0/0 ip and r2 fa0/0 ips in vlan 1
are ping able...
added loopbacks on R1
Theses loopbakcs are pingable from r5..
Then the fun....
(ON R1) ip source-track 126.96.36.199 (IP Address on in loop1)
pings then fail from r5 to r1 on this loopback.
if i do a no ip source-track 188.8.131.52 the pings wont come back.
If i make a new loopback with a differnt subnet and apply ip source-track, i get the same result. Am i doing something wrong?'
CORRECTION: the pings do come back after removing the command it just takes a while.