We have a network with mulitple vlans, 2 of which are of importance here (vlan 10 with 10.1.1.0/24 and vlan 11 with 10.137.1.0/24).
We have a Windows XP box acting as a server, from a 3rd party vendor.
Previously the machine had one NIC assigned with 10.137.1.100, connected to 10.137.1.0/24, which connects to an access port for vlan 11 on a Cisco Catalyst 2960. Access works fine here, and routing is setup so that vlan 10 and vlan 11 can access each other through an ASA 5505 Security Plus appliance.
One of our remote sites utilizes a Linksys RV042 as a VPN endpoint, and they need access to both vlan 10 and this single host on vlan 11. The RV042 can only tunnel one subnet at a time, so it's tunneled to the vlan 10 subnet.
Our idea, sans installing an ASA at this remote site to tunnel multiple subnets, is to install another NIC on this host with an IP address on the vlan 10 subnet. So one NIC would have 10.137.1.100 with a gateway of 10.137.1.1 and is connected to a vlan 11 access port, and the other NIC would have 10.1.1.100 with a gateway of 10.1.1.1 and is connected to a vlan 10 access port.
When I enable both network adapters, neither are accessible on their respective networks, and attempting to access other hosts on the respective networks from the server times out as well.
Is this setup a problem since routing at the ASA allows vlan 10 and vlan 11 to communicate, and return packets are getting lost in a loop? I would think if this is the case that packet response would be intermittent, instead of not at all.
Any ideas here?