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FireBrick Firewall - Steam Client: Difference between revisions

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This firewall allows both inbound and outbound traffic to reach the steam client, all other traffic is rejected. It is written for gaming systems that will only be using the steam client.
 
=Static DNS=
Static DNS manages control over which IP's the steam client can use:
 
<syntaxhighlight lang=xml>
<dns resolvers="2001:8b0::2020 2001:8b0::2021 217.169.20.20 217.169.20.21">
<host name="a1507api.dsteampowered.akamai.netcom" ip="23.63.98.26 23.63205.98213.3278"/>
<host name="a1697.g.akamai.net" ip="23.63.99.219 23.67.255.202"/>
<host name="a1737.g.akamai.net" ip="23.63.99.208 23.63.99.240"/>
<host name="a1843.g.akamai.net" ip="23.67.255.200 23.67.255.208"/>
<host name="api.steampowered.com" ip="23.195.77.152 23.205.213.78"/>
<host name="cdn.akamai.steamstatic.com" ip="23.63.98.26 23.63.98.32"/>
<host name="cdn.store.steampowered.com" ip="23.63.98.26 23.63.98.32"/>
<host name="clientconfig.akamai.steamstatic.com" ip="23.63.98.26 23.63.98.32"/>
<host name="crash.steampowered.com" ip="208.64.203.140 208.64.203.173"/>
<host name="crl4.digicert.com" ip="66.225.197.197"/>
<host name="dreamfallchapters.azurewebsites.net" ip="191.238.8.26"/>
<host name="images.akamai.steamusercontent.com" ip="23.63.98.26 23.63.98.32"/>
<host name="media3.steampowered.com" ip="8.253.70.30 8.253.70.110"/>
<host name="media4.steampowered.com" ip="23.63.98.26 23.63.98.32"/>
<host name="ocsp.digicert.com" ip="93.184.220.29"/>
<host name="a1697paypal.gd1.akamaisc.omtrdc.net" ip="23.63.99.219 2366.67235.255148.20264"/>
<host name="repo.steampowered.com" ip="23.63.98.26 23.63.98.32"/>
<host name="s1.symcb.com" ip="2.22.133.163"/>
<host name="s2.symcb.com" ip="2.22.139.27"/>
<host name="steamcdn-a.akamaihd.net" ip="23.67.255.200 23.67.255.208"/>
<host name="steamcloud-eu.storage.googleapis.com" ip="216.58.198.208 216.58.198.240"/>
<host name="steamclouddub.blob.core.windows.net" ip="191.235.193.40"/>
<host name="steamcommunity-a.akamaihd.net" ip="23.63.99.219 23.67.255.202"/>
<host name="steamcommunity.com" ip="23.19563.7799.152219 23.20567.213255.78202"/>
<host name="steamstore-a.akamaihd.net" ip="23.63.99.208 23.63.99.240"/>
<host name="store.akamai.steamstatic.com" ip="23.63.98.26 23.63.98.32"/>
<host name="store.steampowered.com" ip="23.195.77.152 23.205.213.78"/>
<host name="t.paypal.com" ip="173.223.190.173"/>
<host name="www.paypal.com" ip="173.223.190.173"/>
<host name="apiwww.steampoweredpaypalobjects.com" ip="23.19565.7743.152 23.205.213.78145"/>
</dns>
</syntaxhighlight>
Outbound Rules - Change the MAC address in the source-mac= element to your own:
 
<syntaxhighlight lang=xml>
<rule-set name="Steam Client: Outbound" source-interface="LAN" target-interface="pppoe" no-match-action="continue">
<rule name="Steam OS: NTP"
protocol="6"
action="accept"/>
<rule name="PaypalPayPal Payments"
target-ip="2.22.133.163 2.22.139.27 23.65.43.145 66.235225.148197.64197 66.235.148.128/3164 93.184.220.29 173.223.190.173"
target-port="80 443"
protocol="6"
action="accept"/>
<rule name="Valve Software"
target-ip="103.10.124.0/2423 146.66.155.0/24 155.133.245224.0/24 155.133.248.0/2419 162.254.192.0/21 205.196.6.0/24 208.64.203200.0/2422"
target-port="80 443"
protocol="6"
action="accept"/>
<rule name="Deny All"
source-mac="408D5C57F303 D8CB8AA2464E"
action="reject"/>
</rule-set>
Inbound Rules - Change the IP address in the target-ip= element to your own:
 
<syntaxhighlight lang=xml>
<rule-set name="Steam Client: Inbound" target-interface="LAN" no-match-action="reject">
<rule name="Allow Firebrick" source-interface="self"/>
 
==Steam Client==
 
This documents what hostnames the steam client uses and when.
 
On startup:
*cdn.akamai.steamstatic.com
*steamcommunity.com
*br01.broadcast.fra.steamstatic.com (Randomly Selected)
*br01.broadcast.lax.steamstatic.com (Randomly Selected)
*br01.broadcast.lon.steamstatic.com (Randomly Selected)
*br01.broadcast.ord.steamstatic.com (Randomly Selected)
*br01.broadcast.sto.steamstatic.com (Randomly Selected)
*br02.broadcast.fra.steamstatic.com (Randomly Selected)
*br02.broadcast.lax.steamstatic.com (Randomly Selected)
*br02.broadcast.lon.steamstatic.com (Randomly Selected)
*br02.broadcast.ord.steamstatic.com (Randomly Selected)
*br02.broadcast.sto.steamstatic.com (Randomly Selected)
*br03.broadcast.fra.steamstatic.com (Randomly Selected)
*br03.broadcast.lax.steamstatic.com (Randomly Selected)
*br03.broadcast.lon.steamstatic.com (Randomly Selected)
*br03.broadcast.ord.steamstatic.com (Randomly Selected)
*br03.broadcast.sto.steamstatic.com (Randomly Selected)
*br04.broadcast.fra.steamstatic.com (Randomly Selected)
*br04.broadcast.lax.steamstatic.com (Randomly Selected)
*br04.broadcast.lon.steamstatic.com (Randomly Selected)
*br04.broadcast.ord.steamstatic.com (Randomly Selected)
*br04.broadcast.sto.steamstatic.com (Randomly Selected)
 
*store.steampowered.com
*cdn.akamai.steamstatic.com
 
PayPal Payments:
*store.steampowered.com
*ocsp.digicert.com
*crl4.digicert.com
*www.paypal.com
*s2.symcb.com
*s1.symcb.com
*www.paypalobjects.com
*paypal.d1.sc.omtrdc.net
*t.paypal.com
 
==Steam Cloud==
==IP Reference==
 
This documents what range of IP's belong to which CDN node and steam hostname.
a1507.d.akamai.net:
 
cdn.akamai.steamstatic.com:<br>
cdn.store.steampowered.com:<br>
clientconfig.akamai.steamstatic.com:<br>
images.akamai.steamusercontent.com:<br>
media.steampowered.com:<br>
media4.steampowered.com:<br>
repo.steampowered.com:<br>
store.akamai.steamstatic.com:
*a1507.d.akamai.net:
*23.63.98.26 (Primary)
*23.63.98.32 (Primary)
*104.86.111.137
 
steamcommunity-a.akamaihd.net:
*a1697.g.akamai.net:
*23.63.99.219 (Primary)
*23.67.255.202 (Primary)
*104.86.110.75
 
a1737steamstore-a.g.akamaiakamaihd.net:
*a1737.g.akamai.net
*23.63.99.208 (Primary)
*23.63.99.240 (Primary)
*104.86.110.81
 
a1843steamcdn-a.g.akamaiakamaihd.net:
*a1843.g.akamai.net
*23.67.255.200 (Primary)
*23.67.255.208 (Primary)
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