Can ASA check the health of a site-to-site VPN for route tracking
The ASA "track" command can use an SLA, but it looks like SLA monitor only supports ICMP type as a health check. We would like to redistribute and use a static route only if the appropriate VPN link is up.
We have multiple sites, each with an OSPF area 0, so we don't want to enable OSPF routing over the VPN links. With IOS routers, we use tunnel interfaces with IPSEC encapsulation. Since each end of the tunnel has an IP, pinging the tunnel IP of the other end is a good indication that the tunnel is up.
Is there a way to get this functionality on an ASA?
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...