Questions tagged [vrf-lite]

For questions about virtual routing and forwarding Lite (VRF-Lite), where VRF is a technology that allows multiple instances of a routing table to co-exist within the same router at the same time. The Lite version runs the virtual routing environment in a peer-based fashion.

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6
votes
2answers
5k views

What is the difference between a VRF and VRF-Lite?

To the best of my knowledge, the concept of VRF is something that exists only in the Cisco World. Other vendors refer to this concept as VPN, which is in other words, a way to keep routing tables ...
1
vote
2answers
349 views

Leak default route to multiple VRFs while keeping VRFs isolated from each other

I'm working on a configuring stuff on a Cisco Nexus 3k based platform and trying to isolate different things into different VRFs which should not be able to talk to each other. Some of these VRFs ...
1
vote
1answer
349 views

Vrf-lite limitations on Cisco 6800

I wish to segment a network consisting on 150 tenant using vrf lite on Cisco 6800. The vrf configuration will be standalone as only the 6800 will be configured with vrf. Tenant's CPE will be connected ...
1
vote
1answer
684 views

DMVPN Tunnel Spoke sending registration requests but Hub does not get it

I have built a topology in GNS3 with five routers with a goal to perform: 1)inter vrf routing with bgp as the routing Protocol between Routers. 2)build DMVPN tunnel on the top of it. I was ...
3
votes
1answer
2k views

BGP and Inter-VRF Routing

I am having trouble routing between VRFs using BGP. In my lab there is a hub router with one spoke. I am using MP-BGP to extend VRFs between the two. I want to attach a firewall to the hub with a sub-...
10
votes
3answers
17k views

VRFs, VLANs and subnets: difference

I have a basic understanding of VRFs, VLANs and subnets. I understand that VLANs operate on L2, and subnets and VRFs (lite) on L3. What I don't understand, is why you would choose one over the other ...
3
votes
1answer
658 views

NTP Authentication within a vrf

I have a Cisco ASR1002 WAN router with multiple vrfs per department. Each vrf has a loopback interface on the router, which can be used as an NTP server for remote devices in the respective vrf/...
8
votes
1answer
726 views

Junos VRF equal-cost, multi-next-hop static routes not balancing

I am load balancing traffic on dual, same size links aggregating to the same VRF on the PE router (Juniper MX5 JunOS 11.4). Traffic from the CE (Cisco) is balancing nicely but I need get the reverse ...
1
vote
1answer
891 views

MultiVRF (Cisco) Scenario - Route Target Imports

I have built a MultiVRF test scenario, it's working as intended but my question is, how? It's a tricky scenario, the VRFs between CE and PE have different RT and RD. Here are the configs R1: ip ...
2
votes
0answers
30 views

IPSEC over VRF lite? [duplicate]

I wanted to bounce an idea off of the community regarding the security of VRFs. I am looking to deploy 3 routers with switches modules built into them at three different physical locations. These ...
5
votes
1answer
593 views

Design question - branch offices with failover

We're designing a new WAN connection with backup connections to every branch office. Each branch office needs to connect to servers in the main office, but may not connect to each other. What is a ...
2
votes
1answer
1k views

IPv6: to VRF or not to VRF

Been discussing this with people and reading up, would like people's thoughts on whether or not its worth running IPv6 in a VRF or just let it loose in the global routing table. Even though ...