Hi All HELP the newb please!! 
Here's my scenario.
I hava a 3640 router with an NM4e (4 port ethernet)
e0 192.168.100.x
e1 15.1.1.x
e2 166.212.255.x
e3 208.27.128.x
e0 is cross connected to a host with 192.168.100.x
e1 is connected to a switch directly behind a 1600 (Private APN) router with its e0 address of 15.1.1.x
e2 is connected to a switch directly behind a 1600 router (Private APN) router with its e0 address of 209.183.58.x (primary) and 166.212.255.x (secondary)
e3 is connected to a switch directly behind a 1600 router (public ) with it's e0 address of 208.19.111.x (primary)
208.27.128.x (secondary)
I'm having an issue with pinging hosts on the other side of the routers with secondary interfaces.
I have a static route on all the 3 routers back to the 192 network like this
ip route 192.168.100.0 255.255.255.0 15.1.1.x --->>> this works end to end.
ip route 192.168.100.0 255.255.255.0 166.212.255.x
ip route 192.168.100.0 255.255.255.0 208.27.128.x
HELP, I don't understand what's going on.
Thanks all in advanced.

Here's my scenario.
I hava a 3640 router with an NM4e (4 port ethernet)
e0 192.168.100.x
e1 15.1.1.x
e2 166.212.255.x
e3 208.27.128.x
e0 is cross connected to a host with 192.168.100.x
e1 is connected to a switch directly behind a 1600 (Private APN) router with its e0 address of 15.1.1.x
e2 is connected to a switch directly behind a 1600 router (Private APN) router with its e0 address of 209.183.58.x (primary) and 166.212.255.x (secondary)
e3 is connected to a switch directly behind a 1600 router (public ) with it's e0 address of 208.19.111.x (primary)
208.27.128.x (secondary)
I'm having an issue with pinging hosts on the other side of the routers with secondary interfaces.
I have a static route on all the 3 routers back to the 192 network like this
ip route 192.168.100.0 255.255.255.0 15.1.1.x --->>> this works end to end.
ip route 192.168.100.0 255.255.255.0 166.212.255.x
ip route 192.168.100.0 255.255.255.0 208.27.128.x
HELP, I don't understand what's going on.
Thanks all in advanced.