kaze on Sat, 12 Oct 2002 00:20:08 -0400


[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]

RE: [PLUG] Using iptables instead of my wireless router firewall


Might want to make it...

-->     ____________
-->    |            |
        DSL / cable modem to
-->    +  Internet  +
-->    |            |
-->     ____________
-->          |
-->          |
-->     ____________                              _____________
-->    |            |   ^  (antenna)        ^    |             |
-->    +  Wireless  +--/ \                 / \---+  Remote     +
-->    |   Router   |                            |    Machine  |
-->     ____________                              _____________
-->        | | | |
-->        x | x x  (Hub)
-->          |
-->     ____________
-->    |            |
-->    +  iptables  Firewall  +
-->    |            |
-->     ____________
-->          |
-->          |
-->     ____________
-->    |            |
-->    + Local
		Windows 98      +
-->    |   Machine  |
-->     ____________

...as access to your LAN via WiFi circumvents the firewall, in the original
placement

To troubleshoot:

Hook the both W98 box and the firewall box up to the LinkSys set to use DHCP
and go to http://192.168.1.1, blank username, admin for password. Go to the
status page, poke around on the other pages. From both boxes ping the
LinkSys's WAN IP, the DNS servers the LinkSys gets from your ISP, then try
pinging www.google.com.

Once all this is working move the workstation to the inside of your software
firewall and test from there.

_________________________________________________________________________
Philadelphia Linux Users Group        --       http://www.phillylinux.org
Announcements - http://lists.netisland.net/mailman/listinfo/plug-announce
General Discussion  --   http://lists.netisland.net/mailman/listinfo/plug