I am sorry not to be clear. I was asking the following scenario:
R1 and R2 create a VPN tunnel, and through the tunnel exchange routing information of its own local network. I am thinking to use OSPF as the dynamic routing protocol. This routing information exchange should be done inside the tunnel. I find out that OSPF is protocol 88, so I think it can not be encrypted by IPSec. I am researching on posibility to use a GRE tunnel as the media to encrypt OSPF. I would like to know if anyone has implemented such scenario and its limitation.
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...