On 8/12/2012 11:55 AM, Gary Beck wrote:
The CISCO 'NAT loop back' item is 'Filter Internet NAT Redirection.' I'm not at my usual location so I can't check how it's set on my e3200. I think un-checking that option (the default) allows the redirection of your external IP back to your local LAN. It's one of the firewall settings.

FYI to anyone using a Linksys WRT54G and probably other Linksys models of the same ilk have that same setting, in the Security tab under Firewall. Just thought it was worth a mention.

Ken aka Key Gruin @ OSGrid

    ----- Original Message -----
    *From:* Nicky Perian <mailto:[email protected]>
    *To:* Gary Beck <mailto:[email protected]> ;
    [email protected]
    <mailto:[email protected]>
    *Sent:* Sunday, August 12, 2012 11:40 AM
    *Subject:* Re: [Opensim-users] Region handshake does not complete

    Thank you for the reply.
    I have a cisco e4200. It has settings for port forward,
    triggering, DMZ, and a means to place a gaming app at a specific
    priority.

    But,it has no mention of NAT loop back. I assume that NAT loop
    back is just another name for one of the other port handling
    features mentioned above.

    I have searched google and not found how to set NAT loop back.
    Actually, about the only mention to pop up is OS wiki.

    How is NAT loop back set up for any cisco router?

    Thanks,

    Nicky


        ------------------------------------------------------------------------
        *From:* Gary Beck <[email protected]>
        *To:* Nicky Perian <[email protected]>;
        [email protected]
        *Sent:* Saturday, August 11, 2012 9:30 PM
        *Subject:* Re: [Opensim-users] Region handshake does not complete

        Nicky,
        At handshake time the opensim server sends the viewer the
        resolved IP address of the region being connected to.  I'm
        assuming that would be your dyndns domain name + a port
        number.  However the server send the resolved address, not the
        domain name.  So the viewer will be getting the external IP +
        port number.  This can work if you local network router has
        NAT loopback enabled.  If not the viewer attempts to use the
        address and doesn't reach the server.  The host file settings
        would be effective if at handshake time the server sent domain
        names to be resolved but it doesn't.
        Hope this helps.
        - Gary Beck

            ----- Original Message -----
            *From:* Nicky Perian <mailto:[email protected]>
            *To:* [email protected]
            <mailto:[email protected]>
            *Sent:* Saturday, August 11, 2012 9:57 PM
            *Subject:* [Opensim-users] Region handshake does not complete

            I am running a diva under win 7 64 bit. Same machine as
            several linux VMs. I want to connect each VM to the
            opensim sever. The VM's network cards are set to receive a
            DHCP ip from the router and that works. I can connect to
            any external grid (SL & OS) from the VM's. I have a dyndns
            domain name assigned to the cable company external IP.

            The hosts file in the VM is set to server's lan ip and the
            dyndns domain name. Ping to the domain wraps to the server IP.

            At viewer start I receive the splash from the server.

            The login will not get past establishing the region handshake.

            Hints please.

            Nicky
            
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