Configuration Example: Frame Relay

Note:

For more examples of Frame Relay configurations, I highly recommend Wendell Odom's book CCNA Self Study: CCNA ICND Exam Certification Guide, Cisco Press, ISBN 1-58720-083-x. In that book Odom has several different configurations setting up Frame Relay.

Figure 27-1 shows the network topology for the Frame Relay configuration that follows using the commands covered in this chapter.

Figure 27-1. Frame Relay Network

Note:

For this diagram I am using an Adtran Atlas 550 Device to simulate my Frame Relay cloud. I am using three physical ports (1/1, 2/1, and 2/2) to interconnect my three cities.

Edmonton Router

router>en
router#config t
router(config)#host Edmonton	Sets the host name
Edmonton(config)#no ip domain-lookup	Turns off DNS queries so that spelling mistakes will not slow you down
Edmonton(config)#enable secret cisco	Sets the encrypted password
Edmonton(config)#line con 0
Edmonton(config-line)#login
Edmonton(config-line)#password class	Sets console line password to class
Edmonton(config-line)#logging synchronous	Command being entered will be appended to a new line
Edmonton(config-line)#exit
Edmonton(config)#int fa 0/0
Edmonton(config-if)#ip address 192.168.20.1 255.255.255.0	Assigns IP address
Edmonton(config-if)#no shut
Edmonton(config-if)#int s 0/0
Edmonton(config-if)#encapsulation frame-relay	Turns on Frame Relay encapsulation
Edmonton(config-if)#no shut
Edmonton(config-if)#int s0/0.20 point-to-point	Creates subinterface 20
Edmonton(config-subif)#desc link to Winnipeg router DLCI 20
Edmonton(config-subif)#ip address 192.168.1.1 255.255.255.0	Assigns an IP address
Edmonton(config-subif)#frame-relay interface-dlci 20	Assigns a DLCI number
Edmonton(config-subif)#interface s 0/0.22	Creates subinterface 22
Edmonton(config-subif)#desc link to Calgary router DLCI 22
Edmonton(config-subif)#ip address 192.168.3.1 255.255.255.0	Assigns an IP address
Edmonton(config-subif)#frame-relay interface dlci 22	Assigns a DLCI number
Edmonton(config-subif)#exit
Edmonton(config-if)#exit
Edmonton(config)#router eigrp 100	Turns on the EIGRP routing process 100
Edmonton(config-router)#network 192.168.1.0	Advertises network 192.168.1.0, which connects to Winnipeg
Edmonton(config-router)#network 192.168.3.0	Advertises network 192.168.3.0, which connects to Calgary
Edmonton(config-router)#network 192.168.20.0	Advertises network 192.168.20.0, which is directly connected to local FA 0/interface
Edmonton(config-router)#
Edmonton#copy run start	Saves the configuration to NVRAM

Winnipeg Router

router>en
router#config t
router(config)#host Winnipeg	Sets the host name
Winnipeg(config)#no ip domain-lookup	Turns off DNS queries so that spelling mistakes will not slow you down
Winnipeg(config)#enable secret cisco	Sets the encrypted password to cisco
Winnipeg(config)#line con 0
Winnipeg(config-line)#login
Winnipeg(config-line)#password class	Sets the console line password to class
Winnipeg(config-line)#logging synchronous	Command being entered will be appended to a new line
Winnipeg(config-line)#exit
Winnipeg(config)#int fa 0/0
Winnipeg(config-if)#ip address 192.168.30.1 255.255.255.0	Assigns an IP address
Winnipeg(config-if)#no shut
Winnipeg(config-if)#int s 0/0
Winnipeg(config-if)#encapsulation frame-relay	Turns on Frame Relay encapsulation
Winnipeg(config-if)#no shut
Winnipeg(config-if)#int s0/0.30 point-to-point	Creates subinterface 30
Winnipeg(config-subif)#desc link to Edmonton router DLCI 30
Winnipeg(config-subif)#ip address 192.168.1.2 255.255.255.0	Assigns an IP address
Winnipeg(config-subif)#frame-relay interface-dlci 30	Assigns a DLCI number
Winnipeg(config-subif)#interface s 0/0.31	Creates subinterface 31
Winnipeg(config-subif)#desc link to Calgary router DLCI 31
Winnipeg(config-subif)#ip address 192.168.4.2 255.255.255.0	Assigns an IP address
Winnipeg(config-subif)#frame-relay interface-dlci 31	Assigns a DLCI number
Winnipeg(config-subif)#exit
Winnipeg(config-if)#exit
Winnipeg(config)#router eigrp 100	Turns on EIGRP routing process 100
Winnipeg(config-router)#network 192.168.1.0	Advertises network 192.168.1.0 (to Winnipeg)
Winnipeg(config-router)#network 192.168.4.0	Advertises network 192.168.4.0 (to Calgary)
Winnipeg(config-router)#network 192.168.30.0	Advertises network 192.168.30.0 directly connected to FA 0/0
Winnipeg(config-router)#
Winnipeg#copy run start	Saves the configuration to NVRAM

Calgary Router

router>en
router#config t
router(config)#host Calgary	Sets the host name
Calgary(config)#no ip domain-lookup	Turns off DNS queries so that spelling mistakes will not slow you down
Calgary(config)#enable secret cisco	Sets the encrypted password to cisco
Calgary(config)#line con 0
Calgary(config-line)#login
Calgary(config-line)#password class	Sets the console line password to class
Calgary(config-line)#logging synchronous	Command being entered will be appended to a new line
Calgary(config-line)#exit
Calgary(config)#int fa 0/0
Calgary(config-if)#ip address 192.168.40.1 255.255.255.0	Assigns an IP address
Calgary(config-if)#no shut
Calgary(config-if)#int s 0/0
Calgary(config-if)#encapsulation frame-relay	Turns on Frame Relay encapsulation
Calgary(config-if)#no shut
Calgary(config-if)#int s0/0.40 point-to-point	Creates subinterface 40
Calgary(config-subif)#desc link to Edmonton router DLCI 40
Calgary(config-subif)#ip address 192.168.3.2 255.255.255.0	Assigns an IP address
Calgary(config-subif)#frame-relay interface-dlci 40	Assigns a DLCI number
Calgary(config-subif)#interface s 0/0.41	Creates subinterface 41
Calgary(config-subif)#desc link to Winnipeg router DLCI 41
Calgary(config-subif)#ip address 192.168.4.1 255.255.255.0	Assigns an IP address
Calgary(config-subif)#frame-relay interface-dlci 41	Assigns a DLCI number
Calgary(config-subif)#exit
Calgary(config-if)#exit
Calgary(config)#router eigrp 100	Turns on EIGRP routing process 100
Calgary(config-router)#network 192.168.3.0	Advertises the network to Winnipeg
Calgary(config-router)#network 192.168.4.0	Advertises the network to Calgary
Calgary(config-router)#network 192.168.40.0	Advertises the local FA 0/0 network
Calgary(config-router)#
Calgary#copy run start	Saves the configuration to NVRAM