Q
Problem solve Get help with specific problems with your technologies, process and projects.

I am having issues with the IKE communication between the two Cisco VPN concentrators.

I have two Cisco VPN 3005 to VPN 3005 concentrators, which are configured to use the LAN-to-LAN configuration. I am having issues with the IKE communication between the two devices. It will work if I enable network autodiscovery on both sides. It will not work when I disable routing and use a network list. I cannot even see if the devices are attempting communication at all in the live event logs. I only see traffic if I enable network autodiscovery even if it is only on one side. Please help.
Cisco's private network autodiscovery is an alternative routing method for LAN-to-LAN configurations. To use autodiscovery, inbound RIPv2/v1 must be enabled on eth1. Here are some Cisco troubleshooting documents that might help:

  • Configuring LAN-to-LAN Network AutoDiscovery
  • Verify/Test LAN-to-LAN Network AutoDiscovery
  • Configuring NAT over LAN-to-LAN between Cisco 3000 series VPN concentrators

    You may also want to put a LAN analyzer on the Ethernet between your VPN concentrators. If you don't have a LAN analyzer, try downloading Ethereal. You won't be able to see what's inside IKE, but you'll be able to see if IKE or any other packets are being exchanged.

  • This was last published in March 2005

    Dig Deeper on Network services

    Have a question for an expert?

    Please add a title for your question

    Get answers from a TechTarget expert on whatever's puzzling you.

    You will be able to add details on the next page.

    Start the conversation

    Send me notifications when other members comment.

    Please create a username to comment.

    -ADS BY GOOGLE

    SearchUnifiedCommunications

    SearchMobileComputing

    SearchDataCenter

    SearchITChannel

    Close