I just purchased one of each of the above, both with 1ea WIC 1DSU-T1, and would like to connect them directly to each other in a lab scenario. Do I need to have an RJ48 cable or will an RJ45 work? I have them connected now, but they are not seeing each other. They are connected via S0 on the 1721 and S1/0 on the 1760.
This is the scenario I am using:
router ospf 1
network 0.0.0.0 255.255.255.255 area 0
If I missed something, please let me know, or point me to where I can get some more info.
I just want to add that the serial interfaces on both routers needs to be configured with ip addresses in same subnet.
I see that 1721 has 10.10.3.1/24 and 1760 has 10.10.4.1/24. Choose one of subnets and use, but not both.
Hope this helps