Cisco ASA and Linksys RV042 VLAN - Multiple Subents
Posted on 2010-09-14
We have a situation where we have a Cisco ASA 5505 Security+ device on one WAN IP and a Linksys RV042 on another WAN IP that are setup with a site-to-site VPN tunnel.Each side is tunneling a specific subnet to each other and this works fine.
Management would like to be able to tunnel (2) subnets on the ASA side to the single subnet on the RV042 side, though I am unsure of the possibility of this without replacing the RV042 with a similar ASA (which is doable budget-wise, but they'd rather not). I did setup a duplicate tunnel, for testing, on the RV042 (so there were (2) simultaneous tunnels) with the single WAN IP where the ASA sits. This *worked*. but we did end up running into situations where certain other tunnels stopped working or all of the tunnels stopped working altogether (since we were more or less doing something on the RV042 that wasn't necessarily meant to be).
Unfortunately I don't see anything on the RV042 to tunnel multiple subnets within a single IPSEC session, so I'm curious if I couldn't set up a sort of static route on the RV042 so that it could access the second VLAN on the ASA side.
Basically, the main tunnel is between 10.0.0.0/24 on the RV042 side and 10.1.1.24 on the ASA side, but we have a web server on subnet 10.3.3.0/24 on the ASA that needs to be accessed from the RV042 side. Would a static route work for this?