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Re: [vox] quake3 serving from behind a firewall
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Re: [vox] quake3 serving from behind a firewall



On Thu, 4 Apr 2002, Peter Jay Salzman wrote:

> ok, after much procrastination, i rolled up my sleeves and set up a
> quake3 server.   here's the topology of my LAN:
> 
> 
> --- 64.164.47.8
>    mephisto
>    LEAF
>    firewall                         192.168.0.2  satan
>    192.168.0.1 -------------------- 192.168.0.3  navalle
>                                     192.168.0.4  lucifer
>                                     192.168.0.4  lucifer
>                                     192.168.0.4  moloch
> 
> on the firewall:
> 
> # ipmasqadm portfw -l
> prot localaddr        rediraddr               lport    rport  pcnt pref
> UDP  adsl-64-164-47-8 satan.diablo.localnet   ntp      ntp    10   10
> UDP  adsl-64-164-47-8 satan.diablo.localnet   27960    27960  8    10
> TCP  adsl-64-164-47-8 lucifer.diablo.localnet 27500    27500  10   10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   ntp      ntp    10   10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   6346     6346   7    10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   ssh      ssh    9    10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   24       ssh    10   10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   smtp     smtp   9    10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   www      www    2    10
> TCP  adsl-64-164-47-8 satan.diablo.localnet   ftp      ftp    10 
> 
> 
> i ran the dedicated server on satan (192.168.0.2):
> 
> q3ded +set dedicated 2 +net_ip 64.164.47.8 +map q3dm17 +set com_hunkmegs 200
> 
> 
> now on satan (192.168.0.2), i *can't* connect to the server by
> specifying a connect to server 64.164.47.8 which surprises me.  however,
> i can connect to the server by specifying 192.168.0.2 which is no
> surprise.

This is normal behavior.

> 
> however, on lucifer (192.168.0.4) i *can* connect to the server by
> specifying a connect to server 64.164.47.8.  i can also specify
> 192.168.0.2.  this is groovy.

This is abnormal behavior.  I have never encountered a linux kernel that
would do this (reflect a masquerade back into the local network).

> because lucifer can connect to the server via 64.164.47.8, it seems to
> indicate that things have been set up correctly.  however, i'm a bit
> surprised that satan cannot connect to this address.

I think it indicates something is wierd.  Are you absolutely certain of
this?

> 
> any ideas?
> 
> if someone with quake3 can try to connect to 64.164.47.8 and let me know
> whether you can connect ok, i'd be grateful.

Have to leave that to someone else.

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