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Existing L2L started fluctuating

nickospot
Level 1
Level 1

Need help on how to troubleshoot this issue and get a resolution.

My team and I configured an L2L about 6 months ago and it has been working fine but all of a sudden the tunnel begins fluctuating (coming up and then going off).

We have communicated with our service provider and been assured that nothing has been modified.

Also the other party says same.

 

Am seriously confused and don't know where to start as I have checked through my configurations and confirmed that nothing has changed

2 Replies 2

GioGonza
Level 4
Level 4

Hello @nickospot

 

Get the debugs and share them here in order to look further. 

 

debug crypto isakmp

debug crypto ipsec

 

Gio

Thanks, But can streamline this to the exact peer