Hi guys.

I am trying to setup a 1900 switch and a 2600 router with ISL routing.

I've setup the switch ports to be in the right VLANs, Configured the ISL links to be trunks, have tested comunication between hosts on the same VLAN and everything worked.

However my problem comes when setting up the router.
I configure the sub-if's with the relevant ip address and encapsulations, turn on the main interface, but cannot ping the router from the hosts or ping the hosts from the router.

Does anyone know where I might be going wrong?