Tloc Extension using NAT

[K.Inaba-MD]

Hi Everyone,

By inserting NAT settings on the WAN interface of cedge, we are checking the operation of TlocExtension.

The cedge establishes a control connection, but does not establish a BFD session.

I would like to establish a BFD session, is it possible to share any similar knowledge?

The SD-WAN versions are as follows:
　vmanage,vbond,vsmart: 20.15.1
　cedge(C1111-8P): 17.12.03a.0.4

Regards,
Kei

[MHM Cisco World]

https://www.cisco.com/c/en/us/support/docs/routers/sd-wan/221734-configure-and-troubleshoot-sd-wan-networ.html

MHM

[K.Inaba-MD]

I'm already aware of that site article.

I have used Tloc Extension to build SD-WAN environments multiple times.

Based on that premise, I am filing a petition because it is not available.

A control connection can be established, but a BFD session cannot be established.

Does anyone have a solution or experience with a similar situation?

[Dan Frey]

What color are you using on the tloc-ext interface?      What color is the remote TLOC interface where BFD is not being established?

[K.Inaba-MD · Accepted solution]

We used a private color because the network environment uses a closed network, but if you use NAT, you need to use a public color regardless of the type of network.

[MHM Cisco World]

Did you solve problem?

Can you share some detail with us 

Thanks 

MHM

[Kanan Huseynli]

And what type of NAT do you use? PAT on both side or symmetric 1:1 NAT?