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Cisco 2811 Router Connected to Fractional T1 how to connect another router to it?

gardmanIT asked
Last Modified: 2012-06-22
Hi out USA office has just had a Cisco 2811 Router put it for carrying their PBX trunks via VOIP and AT&T.

The router provides an interner connection as well.

The documentation supplied shows this as connecting on FE0/0 (Fast Ethernet 0/0) and indeed if you connect a PC with a straight RJ45 cable the light come on on the network ports and you get internet/

We already have an internet (DSL) connection so we want to use this extra capacityfor load balancing and redundancy.

We have bought a suitable router to connect to both internet connections (draytek 2820) but are having problems connecting this to the CISCO.

A PC connected to the FE0/0 port gets an IP and works. The router connected to the FE0.0 doesn't even show any lights for the physical connection, regardless of using a straight or crossover cable.
We have also tried connecting the FE0/0 ports and the draytek ethernet WAN port to a switch which gets the lights on both but the draytek still doesn;t get an IP address unlike the PC and configuring manual IP with the IP''s supplied doesn't work.

Am I missing something on whats required to connect anohter router to the Cisco?

Please bear in mind as an AT&T supplied router I have no access to its config.
Also We are in the UK providing support to our US subsidiary so we have no direct contact with AT&T

Thanks for any help you can give me on this.

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