Friday, 12 October 2012

Configuring MLPPP over Frame-relay:


Configuring MLPPP over Frame-relay:

 ·         In this post, let me configure MLPPP over Frame-relay.
  ·         Let me take a small topology to configure MLPPP over Frame-relay:

Configuration:
 
R1#show run
!
!
interface Multilink1
 ip address 10.1.1.1 255.255.255.0
 ppp multilink
 ppp multilink group 1
!
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay interface-dlci 102 ppp Virtual-Template1
 no frame-relay inverse-arp
!
interface Serial1/1
 no ip address
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay interface-dlci 103 ppp Virtual-Template1
 no frame-relay inverse-arp
!
!
interface Virtual-Template1
 no ip address
 ppp multilink
 ppp multilink group 1
!
R2# show run
!
interface Multilink1
 ip address 10.1.1.2 255.255.255.0
 ppp multilink
 ppp multilink group 1
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay interface-dlci 201 ppp Virtual-Template1
 no frame-relay inverse-arp
!
interface Serial1/1
 no ip address
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay interface-dlci 301 ppp Virtual-Template1
 no frame-relay inverse-arp
!
interface Virtual-Template1
 no ip address
 ppp multilink
 ppp multilink group 1
!
 
R1#show ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            unassigned      YES unset  administratively down down
FastEthernet0/1            unassigned      YES unset  administratively down down
Serial1/0                  unassigned      YES unset  up                    up
Serial1/1                  unassigned      YES unset  up                    up
Serial1/2                  unassigned      YES unset  administratively down down
Serial1/3                  unassigned      YES unset  administratively down down
Multilink1                 10.1.1.1        YES manual up                    up
Virtual-Access1            unassigned      YES unset  up                    up
Virtual-Template1          unassigned      YES unset  down                  down
Virtual-Access2            unassigned      YES unset  down                  down
Virtual-Access3            unassigned      YES TFTP   up                    up
R1#
R1#ping 10.1.1.2
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/38/100 ms
R1#ping 10.1.1.1
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/33/136 ms
R1#
 
R2#show ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            unassigned      YES unset  administratively down down
FastEthernet0/1            unassigned      YES unset  administratively down down
Serial1/0                  unassigned      YES unset  up                    up
Serial1/1                  unassigned      YES unset  up                    up
Serial1/2                  unassigned      YES unset  administratively down down
Serial1/3                  unassigned      YES unset  administratively down down
Multilink1                 10.1.1.2        YES manual up                    up
Virtual-Access1            unassigned      YES unset  up                    up
Virtual-Template1          unassigned      YES unset  down                  down
Virtual-Access2            unassigned      YES unset  down                  down
Virtual-Access3            unassigned      YES TFTP   up                    up
Virtual-Access4            unassigned      YES TFTP   down                  down
R2#
R2#ping 10.1.1.1
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/30/72 ms
R2#
R2#ping 10.1.1.2
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/40/156 ms
R2#
 
Observations:
·         We first need to create multilink interface
·         IP address needs to be configured under multilink interface
·         Then, we need to tie this multilink interface to the virtual-template.
·         Then, we need to tie this virtual-template to the interfaces

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