This document introduces how to set up an IPsec tunnel between CiscoASA and Vigor3900/2960. The scenario is that Vigor2960 has two WAN interfaces and will dial out to Cisco through WAN2 when WAN1 is down.
In this example, the WAN1 of Vigor2960 has a public IP address 18.104.22.168, WAN2 has 22.214.171.124, and the local subnet IP is 192.168.0.0/2. The Cisco ASA 5515 has a public WAN IP 126.96.36.199, and the local subnet IP is 10.1.0.0/24.
1. Use VPN Wizards to create Site-to-site VPN profile for Vigor2960 Dial-In.
2. Specify Vigor2960's WAN1 IP "188.8.131.52" as Peer IP Address.
3. Specify Local Network and Remote Network.
4. Input Pre-shared Key.
5. Do NOT select Exempt ASA side host/network from address translation option.
6. The summary of this VPN profile will be displayed as follows, includes the accepted IKE protocol, IKE Policy, and IPsec Proposal.
7. Go to Crypto Maps and edit the specified Crypto Map by adding(allow) the second peer IP Address (It is the WAN2 Public IP 184.108.40.206 of Vigor2960).
8. Now add the second VPN Connection through the VPN wizard. Use the same settings, except for the Peer Public IP. Now use 220.127.116.11 instead of 18.104.22.168
9. After that, the config should look similar to below.
10. Go to VPN and Remote Access >> VPN Profile >> IPsec click Add to create a new profile:
11. In the Advanced tab, change Phase1 Key Lifetime from 28800s to 3600s. (Because Cisco VPN configuration has the phase1 key lifetime as 3600 seconds.)
12. In Proposal Tab, select the accurate proposal that matches the proposal setting on Cisco. Click Apply to save the profile.
After completing the above configurations, Vigor2960 will dial up the IPsec tunnel to Cisco automatically through WAN1 and dial it up to Cisco through WAN2 as Failover when WAN1 is down.
Published On: Mar 28, 2016
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