Hello, I have a GRE tunnel that keeps going down and up. The tunnel does NOT have a Keepalive setting on either end. Both ends are RouterOS. The other end’s GRE tunnel stays up. The end with the problem is a CCR1009-8G-1S and the end without a problem is an RB951G-2HnD.
I notice that when it goes down, it had just received some data.
Any ideas?
Update: It seems to have something to do with a route being sent that included the GRE tunnel’s address. When the route was sent, the tunnel went down, then OSPF would notice that the link was down and drop the route and the tunnel we come back up, and so on.