http://support.steampowered.com/cgi-bin/steampowered.cfg/php/enduser/std_adp.php?p_faqid=160&p_created=1093381261&p_sid=V-48cIXh&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MjQmcF9wcm9kcz0wJnBfY2F0cz0wJnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfbmwmcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1wb3J0cw**&p_li=&p_topview=1

Here is the article from Steam, make sure you are allowing these ports.


On 12/22/05, Eric Gregory <eric at gatewayconnections dot com> wrote:
>
> I am trying to run counter strike (Client, not server) on a PC on my
> lan, I have firewall rules setup to allow from Lan to any.  When I try
> to use the Steam client to find servers I get a message that the master
> server could not be reached.  When checking the firewall logs I see UDP
> packets from various hosts on the internet destined for the host running
> the steam software and Counter Strike being blocked.  If I uncheck the
> show packets blocked by the default block rule in the lot settings the
> packets no longer show.  I assume based on this that the default rule is
> blocking these packets.  I have tried creating rules to allow all UDP (I
> would never leave it that way but wanted to see if it would work) as
> well as allowing ANY traffic to the host in question and nothing seems
> to work.  Anyone know what rules I need to add to fix this problem?
> Running Mono 1.2 on this system.
>
> Thanks
> Eric
>
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