I am setting up my first DMVPN tunnel and I appear to be having a problem with it.
With EIGRP turned off the tunnel comes right up and works fine. However when I turn up EIGRP the tunnel drops every 15 seconds or so for about 5-10 seconds.
The message on the spoke router is that a goodbye message was received. On the hub router the holding timer expires. Not only does eigrp go down but I can't even pass basic peer to peer traffic over the tunnel, which I can when EIGRP is turned off.
Now this would suggest that, for some reason, one side or the other is not receiving the EIGRP hellos. However I can't imagine for the the life of me why it wouldn't be.
I don't have any filters on the terminating interfaces other than NAT statements on the spoke router.
Has anyone seen anything like this before? I have tried just about every combo of using the split-horizon command and the ip next-hop-self to no avail.
My EIGRP settings on both routers are very basic. Just no auto-summary and the networks.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...