1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

RV042 and dual WAN

Discussion in 'Cisco Small Business Routers and VPN Solutions' started by Sfor, Sep 17, 2007.

  1. Sfor

    Sfor Network Guru Member

    I just installed RV042 as a dual WAN gateway. Here are my first impressions.

    It is not possible to set the same MAC for both WAN ports. So far, in order to change WAN, all I had to do was to change the plug in the old SMC barricade router. Both providers were fed with the same MAC, of course. When I connected the new RV042, I had to change the registered MAC in one of the networks. I see no reason, why the both WAN ports have to have different MAC. Both are connected to independant networks, so there would not be any collision.

    Another problem is the Smart Link Backup system. If the router is working on one WAN port, the other is disabled. So, I can not use one WAN port as the main Internet connection source, while the other is still functional in terms of the VPN traffic.

    In my case the VPN clients are placed in the WAN1 and they are unable to access the RV042 from WAN2 side. So, using the WAN2 as the primary WAN will diconnect all VPN tunnels on WAN1.

    There is yet another problem. Each WAN does have it's own DNS server settings. But, in the load ballance mode, queries to WAN1 DNS server are sent through both WAN ports. The WAN1 provider is using DNS servers outside of the WAN1 net mask. ( and, while the net mask is So, the WAN1 DNS server is not accessible through WAN2. I had to set some other DNS servers in order to get rid of unwanted WAN2 to WAN1 DNS servers queries. So, what are the different DNS servers for each WAN for, then?

    Appart from the mentioned above issues, the RV042 works quite well, for now. But, one question bugs me still. Is it possible to use RV042 as an Internet gateway through an IPSec VPN tunnel?

Share This Page