Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations derfloh on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Point to Point

Status
Not open for further replies.

Gerry6467

MIS
Joined
Feb 28, 2006
Messages
7
Location
US
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


 
Your serial interfaces need to be in the same subnet if they are directly connected. You've got each end in a different subnet.
 
Also for point ot point remember that one side must be set to internal clocking for the line.
 
Internal clocking is set - will change subnet.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top