{"id":1886,"date":"2018-05-04T00:03:00","date_gmt":"2018-05-03T23:03:00","guid":{"rendered":"https:\/\/www.balajibandi.com\/?p=1886"},"modified":"2023-02-27T00:18:28","modified_gmt":"2023-02-27T00:18:28","slug":"routing-with-vrf-lite","status":"publish","type":"post","link":"https:\/\/www.balajibandi.com\/?p=1886","title":{"rendered":"Routing with VRF Lite."},"content":{"rendered":"\n

I have followed some blogs with experts in the market available and cisco official documentation :<\/p>\n\n\n\n

https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/lan\/catalyst4500\/12-2\/31sg\/configuration\/guide\/conf\/vrf.pdf<\/a><\/p>\n\n\n\n

I have simple topology testing :<\/p>\n\n\n\n

\"\"
ISP and CUSTA and CUSTB<\/strong><\/figcaption><\/figure>\n\n\n\n

Config file is attached below :<\/p>\n\n\n\n

ISP<\/strong><\/p>\n\n\n\n

ip vrf Blue
rd 65000:3
!
ip vrf Green
rd 65000:2
route-target export 65000:2
route-target import 65000:99
!
ip vrf Red
rd 65000:1
route-target export 65000:1
route-target import 65000:99
!
ip vrf Shared
rd 65000:99
route-target export 65000:99
route-target import 65000:1
route-target import 65000:2
!<\/p>\n\n\n\n

interface Loopback0
ip address 192.0.2.1 255.255.255.255
!
interface Loopback99
description VOIP Services
ip vrf forwarding Shared
ip address 192.168.99.1 255.255.255.0
!
interface GigabitEthernet0\/0
switchport trunk encapsulation dot1q
switchport mode trunk
negotiation auto
!
interface GigabitEthernet0\/1
switchport trunk encapsulation dot1q
switchport mode trunk
negotiation auto
!
interface GigabitEthernet0\/2
no switchport
ip vrf forwarding Red
ip address 172.16.1.2 255.255.255.252
negotiation auto
!
interface GigabitEthernet0\/3
no switchport
ip vrf forwarding Green
ip address 172.17.1.2 255.255.255.252
negotiation auto
!
interface GigabitEthernet1\/0
no switchport
ip vrf forwarding Blue
ip address 172.18.1.2 255.255.255.252
negotiation auto<\/p>\n\n\n\n

!<\/p>\n\n\n\n

interface Vlan16
ip vrf forwarding Red
ip address 172.16.0.1 255.255.255.0
!
interface Vlan17
ip vrf forwarding Green
ip address 172.17.0.1 255.255.255.0
!
interface Vlan18
ip vrf forwarding Blue
ip address 172.18.0.1 255.255.255.0
!
router ospf 1 vrf Red
redistribute bgp 65000 subnets
network 0.0.0.0 255.255.255.255 area 0
!
router ospf 2 vrf Green
redistribute bgp 65000 subnets
network 0.0.0.0 255.255.255.255 area 0
!
router ospf 3 vrf Blue
network 0.0.0.0 255.255.255.255 area 0
!
router bgp 65000
bgp log-neighbor-changes
!
address-family ipv4 vrf Blue
redistribute connected
redistribute ospf 3
exit-address-family
!
address-family ipv4 vrf Green
redistribute connected
redistribute ospf 2
exit-address-family
!
address-family ipv4 vrf Red
redistribute connected
redistribute ospf 1
exit-address-family
!
address-family ipv4 vrf Shared
redistribute connected
exit-address-family
!<\/p>\n\n\n\n

CUSTA<\/strong><\/p>\n\n\n\n

ip vrf Green
rd 65000:2
!
ip vrf Red
rd 65000:1
!<\/p>\n\n\n\n

interface GigabitEthernet0\/0
switchport trunk encapsulation dot1q
switchport mode trunk
negotiation auto
!<\/p>\n\n\n\n

interface Vlan16
ip vrf forwarding Red
ip address 172.16.0.2 255.255.255.0
!
interface Vlan17
ip vrf forwarding Green
ip address 172.17.0.2 255.255.255.0
!
interface Vlan216
ip vrf forwarding Red
ip address 172.16.2.1 255.255.255.0
!
interface Vlan217
ip vrf forwarding Green
ip address 172.17.2.1 255.255.255.0
!
router ospf 1 vrf Red
passive-interface Vlan216
network 0.0.0.0 255.255.255.255 area 0
!
router ospf 2 vrf Green
passive-interface Vlan217
network 0.0.0.0 255.255.255.255 area 0
!<\/p>\n\n\n\n

CUSTB<\/strong>
<\/p>\n\n\n\n

ip vrf Blue
rd 65000:3
!
ip vrf Red
rd 65000:1
!
!<\/p>\n\n\n\n

interface GigabitEthernet0\/1
switchport trunk encapsulation dot1q
switchport mode trunk
negotiation auto
!<\/p>\n\n\n\n

interface Vlan16
ip vrf forwarding Red
ip address 172.16.0.3 255.255.255.0
!
interface Vlan18
ip vrf forwarding Blue
ip address 172.18.0.3 255.255.255.0
!
interface Vlan316
ip vrf forwarding Red
ip address 172.16.3.1 255.255.255.0
!
interface Vlan318
ip vrf forwarding Blue
ip address 172.18.3.1 255.255.255.0
!
router ospf 1 vrf Red
passive-interface Vlan316
network 0.0.0.0 255.255.255.255 area 0
!
router ospf 3 vrf Blue
passive-interface Vlan318
network 0.0.0.0 255.255.255.255 area 0<\/p>\n\n\n\n

Verifications :<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

CUSTB verifications :<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Now I do not see redistributed routes<\/p>\n\n\n\n

After a struggle of 1 hour and cisco docs, I found I have not added the VRF-lite capabilities <\/p>\n\n\n\n

CUST A :<\/strong><\/p>\n\n\n\n

router ospf 1 vrf Red
capability vrf-lite<\/strong>
passive-interface Vlan216
network 0.0.0.0 255.255.255.255 area 0<\/p>\n\n\n\n

CUSTB:<\/strong><\/p>\n\n\n\n

router ospf 1 vrf Red
capability vrf-lite<\/strong>
passive-interface Vlan316
network 0.0.0.0 255.255.255.255 area 0<\/p>\n\n\n\n

Now verification works as expected :<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Good luck to whoever ever struggling with the same issue…!<\/p>\n\n\n\n

Happy Labbbing…………………………….!<\/p>\n","protected":false},"excerpt":{"rendered":"

I have followed some blogs with experts in the market available and cisco official documentation : https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/lan\/catalyst4500\/12-2\/31sg\/configuration\/guide\/conf\/vrf.pdf I have simple topology testing : Config file is attached below : ISP ip vrf Bluerd 65000:3!ip vrf Greenrd 65000:2route-target export 65000:2route-target import 65000:99!ip vrf Redrd 65000:1route-target export 65000:1route-target import 65000:99!ip vrf Sharedrd 65000:99route-target export 65000:99route-target import 65000:1route-target […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,13,2],"tags":[],"class_list":["post-1886","post","type-post","status-publish","format-standard","hentry","category-ccie-rns","category-ccie-sp","category-cisco"],"_links":{"self":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts\/1886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1886"}],"version-history":[{"count":4,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts\/1886\/revisions"}],"predecessor-version":[{"id":1894,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts\/1886\/revisions\/1894"}],"wp:attachment":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}