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What are the minimum parameters to configure a T1 between two 1841 router?

tremblmi
Level 1
Level 1

I configure two WIC-1DSU-T1-v2 interfaces with a T1 crossover cable. What are the mimimum configurations to do to communicate from LAN1 (int fa0/0 of one 1841 router) to LAN2 (int fa0/0 of the second 1841 router) ?

Do I need a routage protocole ? And if yes wich one ? Interne or externe (RIP or BGP) Or static route is enough ?

Also, is that I should put a encapsulation, like ppp ? Is it neccessary on a point to point line ?

Finally what about the following commands, do I need it ?

service-module t1 clock source internal

service-module t1 timeslots 1-24 speed 64

service-module t1 framing esf

service-module t1 linecode b8zs

thank you

2 Accepted Solutions

Accepted Solutions

Pulkit Nagpal
Cisco Employee
Cisco Employee

Jon Marshall
Hall of Fame
Hall of Fame

Micheline

To answer your question about routing. You do need to have routes on each router for the LAN subnets. These can be static routes or you can use a dynamic routing protocol. Note unless you are peering with an ISP or using MPLS you generally don't need to run BGP.

So with statics and with EIGRP as examples -

192.168.5.0/24 -> fa0/0 R1  192.168.10.1/30 -> T1 -> 192.168.10.2/30 R2 fa0/0 192.168.6.0/24

statics

=====

R1

ip route 192.168.6.0 255.255.255.0 192.168.10.2

R2

ip route 192.168.5.0 255.255.255.0 192.168.10.1

EIGRP

=====

R1

router eigrp 10

network 192.168.5.0 0.0.0.255

network 192.168.10.0 0.0.0.3

no auto-summary

R2

router eigrp 10

network 192.168.6.0 0.0.0.255

network 192.168.10.0 0.0.0.3

no auto-summary

Jon

View solution in original post

4 Replies 4

paolo bevilacqua
Hall of Fame
Hall of Fame

Have you considered searching this forum and/or  reading documentation  before asking so many common questions ?

Or, even better, hire a professional to configure it right.

Pulkit Nagpal
Cisco Employee
Cisco Employee

Hi Micheline,

Please use following discussion for reference:

https://supportforums.cisco.com/message/501041#501041

https://supportforums.cisco.com/message/19309#19309

https://supportforums.cisco.com/message/3466585#3466585

Regards,

Pulkit Nagpal

Technical Community Manager - NI

Jon Marshall
Hall of Fame
Hall of Fame

Micheline

To answer your question about routing. You do need to have routes on each router for the LAN subnets. These can be static routes or you can use a dynamic routing protocol. Note unless you are peering with an ISP or using MPLS you generally don't need to run BGP.

So with statics and with EIGRP as examples -

192.168.5.0/24 -> fa0/0 R1  192.168.10.1/30 -> T1 -> 192.168.10.2/30 R2 fa0/0 192.168.6.0/24

statics

=====

R1

ip route 192.168.6.0 255.255.255.0 192.168.10.2

R2

ip route 192.168.5.0 255.255.255.0 192.168.10.1

EIGRP

=====

R1

router eigrp 10

network 192.168.5.0 0.0.0.255

network 192.168.10.0 0.0.0.3

no auto-summary

R2

router eigrp 10

network 192.168.6.0 0.0.0.255

network 192.168.10.0 0.0.0.3

no auto-summary

Jon

Thank you to those who gave me useful answers that allowed me to advance in my knowledge of the configuration of a T1. Finally, it is rather easy to configure and I am proud to have raised and realise this challenge.

Review Cisco Networking for a $25 gift card