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RVL200 SNAT'ing Internet Addresses

Discussion in 'Cisco Small Business Routers and VPN Solutions' started by rwwest, Oct 20, 2006.

  1. rwwest

    rwwest LI Guru Member

    I recently ran into a problem where my newly purchased RVL200 to replace a BEFSX41 was performing SNAT all inbound packets being port forwarded or to the DMZ Therefore, all packets arriving at my server appear to originate from the router itself, i.e. the src IP address was the router's LAN IP address.

    Suffice to say that this is bad. In my case, my server firewall rules allowed all access to the internal LAN. Since this was true, my server appear as a public unprotected server on the internet:mad:. Obviously, I fixed that problem by viewing my router as the internet and setting up the appropriate firewall rules.

    In the meantime, my smtp server was "discovered" as a promiscuous router and I have been hammered ever since by evil spammers. I installed a number of spam-filters but dog gone it, many of them depend upon the src ip address. So that was a waste of time.

    Have have contacted Linksys about the issue and was wondering if anyone else in the linksys community has seen this problem. Moreover, if you do own an RVL200 and have a server, either port forwarded or DMZ'd, I wold suggest taking a look at your firewall rule to protect yourself from the router:).
  2. Toxic

    Toxic Administrator Staff Member

    I cna confirm this is fixed from the changelog i have received.
  3. rwwest

    rwwest LI Guru Member

    Is there a beta for this? If not, any idea about how long until in a release?
  4. rwwest

    rwwest LI Guru Member

    Nevermind..i saw your later post.
  5. Toxic

    Toxic Administrator Staff Member

    since is is only pre alpha i am not allowed to released it. once it is classed as beta you will be able to get it here from our downloads.

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