I am trying to set up a LAN-LAN connection between a 3030 and a Nortel Contivity. We are trying to match IPSEC Authentication parameters. The 3030's only choices are ESP/MD5/HMAC-128 and ESP/SHA/HMAC-160. The Nortel box only has ESP/MD5 and ESP/SHA. I can't find any place to add or change the IPSEC Authentication choices. Are these the only options?
IPSec implementation on Cisco boxes is fully standards compliant. The same should be the case on the Contivity. I guess choosing ESP/MD5/HMAC-128 on the concentrator and ESP/MD5 on contivity ( or ESP/SHA/HMAC-160 on the concentrator and ESP/SHA on contivity) should work. There are a few resources that will help you with your configuration. The VPN 3000 concentrator support page has a few example which deal with setting up LAN-to-LAN tunnels with third party vendors. The support page is accessible at http://www.cisco.com/pcgi-bin/Support/browse/psp_view.pl?p=Hardware:Cisco_VPN_3000_Concentrator&viewall=true.
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...