We have an ASA 7.x at the central location acting as a firewall and VPN concentrator. We also have a remote site connected internally through Frame Relay to a router that's behind the ASA. We're running EIGRP internally. We've added an internet connection to the remote site router and would like to use it for backup purposes in the event the WAN link fails.
I've been looking into a number of options but nothing looks like it'll work quite right. Is there a way to kick off the VPN tunnel from the remote side when it senses a WAN link failure? The VPN can't be up when the WAN link is up.
EasyVPN doesn't seem to have a way to fail over from a non-VPN connection.
DMVPN doesn't seem to be supported on the ASA.
Anyone have a guide they can point me at to get this working?
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...