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Router link upgrade

Hargert42
Level 1
Level 1

I am trying to upgrade a link between two routers from a pair of bundles T1's to a ethernet copper link.  I have tried 3 different times and it always fails and I am at a loss to explain why.  I am assuming it has something to do with the VRFs that are set up on the edge router.  I am trying to get rid of multilink 1 and replace it with a ethernet connection from Office-2851 interface Gi 0/1 to 3745-Edge  Fa 0/0.  I have tried using the IP addresses of the multi link to keep the current routing working but it always breaks as soon as I change it.  I have tried getting rid of the VRF's all together and go with all static routes with no luck as well.  Any ideas?  I am putting up the two configs below.  If anyone needs any more info just ask and I would be happy to share.  This is driving me up a wall here.

Router 1:  2851

show run

Building configuration...

Current configuration : 6089 bytes

!

! No configuration change since last restart

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname Office-2851

!

!

!

multilink bundle-name authenticated

!

controller T1 0/0/0

framing esf

linecode b8zs

cablelength short 133

channel-group 0 timeslots 1-24

!

controller T1 0/0/1

framing esf

linecode b8zs

cablelength short 133

!

controller T1 0/1/0

framing esf

linecode b8zs

channel-group 0 timeslots 1-24

!

controller T1 0/1/1

framing esf

linecode b8zs

!

ip ssh time-out 60

ip ssh authentication-retries 4

!

!

!

interface Loopback0

ip address 192.168.63.3 255.255.255.255

!

interface Multilink1

description To Office

ip address 192.168.0.6 255.255.255.252

no ip redirects

no ip unreachables

no ip proxy-arp

ppp multilink

ppp multilink group 1

!

interface GigabitEthernet0/0

no ip address

ip route-cache flow

duplex auto

speed auto

!

interface GigabitEthernet0/0.801

encapsulation dot1Q 801

ip address 192.168.5.1 255.255.255.0

ip helper-address 192.168.5.25

!

interface GigabitEthernet0/1

no ip address

duplex full

speed 100

!

interface Serial0/0/0:0

description To 3745-Edge S0/0:0

no ip address

encapsulation ppp

no fair-queue

ppp multilink

ppp multilink group 1

!

interface Serial0/1/0:0

description To 3745-Edge S0/2

no ip address

encapsulation ppp

ppp multilink

ppp multilink group 1

!

ip route 0.0.0.0 0.0.0.0 192.168.0.5

ip route 192.168.5.0 255.255.255.0 192.168.62.5

ip route 192.168.63.4 255.255.255.255 192.168.62.5

!

ip flow-export version 5

ip flow-export destination 192.168.128.202 3000

!

ip http server

ip http authentication local

ip http secure-server

ip http timeout-policy idle 60 life 86400 requests 10000

ip http path flash:

ip tacacs source-interface GigabitEthernet0/0

!

logging 192.168.128.20

access-list 23 permit 10.10.10.0 0.0.0.7

Office-2851#

Router 2: 3745

show run

Building configuration...

Current configuration : 6148 bytes

!

log datetime msec

service password-encryption

!

hostname 3745-EDGE

!

!

card type t3 1

card type t3 2

no logging console

!

no network-clock-participate wic 0

aaa new-model

!

!

!

ip vrf ntl

rd 1:10

route-target export 1:10

route-target import 1:10

!

no ip bootp server

no ip domain lookup

ip domain name blmntl.gov

ip ssh time-out 60

ip ssh authentication-retries 4

ip ips po max-events 100

no ftp-server write-enable

!

!

controller T1 0/0

framing esf

fdl both

clock source internal

linecode b8zs

channel-group 0 timeslots 1-24 speed 64

!

controller T1 0/1

framing esf

fdl both

linecode b8zs

channel-group 1 timeslots 1-24 speed 64

controller T3 1/0

!

controller T3 2/0

!

no crypto isakmp ccm

!

!

!

!

interface Loopback0

ip address 172.31.31.252 255.255.255.255

!

interface Multilink1

description To Office-2851

ip vrf forwarding ntl

ip address 192.168.0.5 255.255.255.252

ppp multilink

ppp multilink group 1

!

interface FastEthernet0/0

description To MPLS Core1

ip address 172.31.31.18 255.255.255.248

ip ospf network point-to-point

shutdown

speed 100

full-duplex

tag-switching ip

!

interface Serial0/0:0

description To Office-2851 S0/0/0:0

ip vrf forwarding ntl

no ip address

encapsulation ppp

no fair-queue

ppp multilink

ppp multilink group 1

!

interface FastEthernet0/1

no ip address

speed 100

full-duplex

!

interface Serial0/1:1

description To Office2851 S0/0/1:0

ip vrf forwarding ntl

no ip address

encapsulation ppp

no fair-queue

ppp multilink

ppp multilink group 1

!

interface Serial0/2

description To Field-2821

ip vrf forwarding ntl

ip address 192.168.0.9 255.255.255.252

encapsulation ppp

no fair-queue

!

interface Serial0/3

description To Field-2821

ip vrf forwarding ntl

ip address 192.168.0.9 255.255.255.252

encapsulation ppp

shutdown

no fair-queue

!

interface Serial1/0

description To Alpha S3/0

ip vrf forwarding ntl

ip address 10.121.208.2 255.255.255.252

encapsulation ppp

dsu bandwidth 44210

!

interface Serial2/0

description To Beta S3/0

ip vrf forwarding ntl

ip address 10.121.209.142 255.255.255.252

encapsulation ppp

dsu bandwidth 44210

!

router ospf 3745

router-id 172.31.31.252

log-adjacency-changes

passive-interface default

no passive-interface FastEthernet0/0

no passive-interface FastEthernet0/1

network 172.31.31.0 0.0.0.255 area 0

!

router ospf 37452

log-adjacency-changes

!

router bgp 64610

no synchronization

bgp log-neighbor-changes

redistribute connected

redistribute static

neighbor 10.121.208.1 remote-as 64700

neighbor 10.121.208.1 description To 3845-Alpha S3/0

neighbor 10.121.208.1 soft-reconfiguration inbound

neighbor 10.121.209.141 remote-as 64700

neighbor 10.121.209.141 description To 3845-Beta S3/0

neighbor 10.121.209.141 soft-reconfiguration inbound

neighbor 172.31.31.251 remote-as 64610

neighbor 172.31.31.251 update-source Loopback0

no auto-summary

!

address-family vpnv4

neighbor 172.31.31.251 activate

neighbor 172.31.31.251 next-hop-self

neighbor 172.31.31.251 send-community extended

exit-address-family

!

address-family ipv4 vrf ntl

redistribute connected

redistribute static

neighbor 10.121.208.1 remote-as 64700

neighbor 10.121.208.1 activate

neighbor 10.121.208.1 soft-reconfiguration inbound

neighbor 10.121.209.141 remote-as 64700

neighbor 10.121.209.141 activate

neighbor 10.121.209.141 soft-reconfiguration inbound

no auto-summary

no synchronization

exit-address-family

!

ip classless

ip route 0.0.0.0 0.0.0.0 172.31.31.251

ip route 192.168.128.0 255.255.255.0 10.121.208.1

ip route vrf ntl 192.168.5.0 255.255.255.0 192.168.0.6

ip route vrf ntl 192.168.6.0 255.255.255.0 192.168.0.10

ip route vrf ntl 192.168.62.4 255.255.255.252 192.168.0.6

ip route vrf ntl 192.168.63.3 255.255.255.255 192.168.0.6

ip route vrf ntl 192.168.63.4 255.255.255.255 192.168.0.6

ip route vrf ntl 192.168.63.5 255.255.255.255 192.168.0.10

!

!

!

end

--More--                          

3745-EDGE#


3 Replies 3

rfalconer.sffcu
Level 3
Level 3

Anything in the logs when you connect them?

Do the interfaces show up/up when you connect them?

No nothing in the logs and yes both sides come up and I can ping both sides. Here is what I am trying.  Once changes are made I can no longer ping 192.168.5.1 and it works with the T1s.

interface FastEthernet0/0

ip vrf forwarding ntl

ip address 192.168.0.5 255.255.255.252

speed auto

duplex auto

interface GigabitEthernet0/1

ip address 192.168.0.6 255.255.255.252

duplex auto

speed auto

Have you tried a ping to anything besides .5.1?

Where did you source the ping from?

Did you run a traceroute?

The static route on the 2851 might be affecting the traffic.  ip route 192.168.5.0 255.255.255.0 192.168.62.5

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