Point to Point

[Gerry6467]

Here is what I have:

Main office - Cisco 2801 Router - running 2 point-to-point configurations currently on Serial1 and Serial2 via DSU T1 module cards. In Serial0 I have the same card. Person for me had this serial shutdown. I have a new location that has a verfied and active T1 point-to-point.

I sent a Cisco 1721 to that facility with DSU/CSU T1 v2 card in it. I will be providing my own IPs:

Cisco 2801 - Interface Serial0/0/0 is IP xxx.xxx.15.1 255.255.255.0

Cisco 1721 - Interface Serial0/0/0 is xxx.xxx.8.1 255.255.255.0

Both routers are plugged in (unfortunately I am not at the other location) but after speaking with them I am 100% it is connected correctly. I am unable to ping from the 2821 to the 1721 router.

I do have a back up DSL connection out there so I can console into the router. I am missing something ... any suggesstions?

Do I need to add a classless host route? If so where and how? I am running just the basic configuration on the 1721. It's basically right out of the box. The 2821 was setup prior to my employment here.

I really hope to not have to hop on a plane so any help is welcome.

Thanks,
Gerry

 

[jneiberger]

Your serial interfaces need to be in the same subnet if they are directly connected. You've got each end in a different subnet.

 

[JOAMON]

Also for point ot point remember that one side must be set to internal clocking for the line.

 

[Gerry6467]

Internal clocking is set - will change subnet.