cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1879
Views
0
Helpful
1
Replies

Frame-relay configuration between two routers

diallodjeri
Level 1
Level 1

Hi folks

I do need some  clarification on frame-relay configuration Inverse ARP. I do have tow  books but but I'm getting different information as far as configuring a  frame-relay between two routers.

Here is the information from 1st book:

Single Interface

Let’s get started by looking at a simple example. Say that we just want to connect two routers

with a single PVC. Here’s how that configuration would look:

RouterA#config t

Enter configuration commands, one per line. End with CNTL/Z.

RouterA(config)#int s0/0

RouterA(config-if)#encapsulation frame-relay

RouterA(config-if)#ip address 172.16.20.1 255.255.255.0

RouterA(config-if)#frame-relay lmi-type ansi

RouterA(config-if)#frame-relay interface-dlci 101

RouterA(config-if)#^Z

RouterA#

Here the author has specified the dlci number


Here is the information from 2nd book and this one is full mesh between 3 routers.

Frame Relay configuration on RT1, RT2, and RT3:

RTx(config)#int s0/0

RTx(config-if)#encapsulation frame-relay

RTx(config-if)#ip add 200.1.1.{x} 255.255.255.0

RTx(config-if)#no shut

RTx(config-if)#exit

RTx(config)#router eigrp 1

RTx(config-router)#network 200.1.1.0

RTx(config-router)#network 172.16.0.0

RTx(config-router)#no auto-summary

As you can see the author did not specify the dlci number.


And lastly I saw this configuration from Brian on CLN

https://learningnetwork.cisco.com/message/185959#185959


My question is the fallowed do we need to specify the dlci number while the Inverse ARP is enabled?

1 Reply 1

ebarticel
Level 4
Level 4

If ISP gives you a DLCI number use the RouterA steps to configure frame-relay.

If ISP didn't give you DLCI number use the RTx steps to configure frame-relay.

Hope this helps

Eugen

Review Cisco Networking products for a $25 gift card