Ok well what about this.. Can I do fire walling with just one NIC card? All I was trying to accomplish was have one NIC for my internal network one for my external, can I just do that with one? Jeff
you can, but I would not recommend it. you would need to setup an alias on your nic, eth0:0 and your incoming network connection would have to terminate in a switch or hub, which will work, but.... a friend of mine did this with a cable modem. the cable modem doled out an ip address to his nic which was plugged into a switch with the cable modem. after he got the ip from dhcp, he would then bring up his virtual ethernet interface and firewall/masqing script. problem was, if anyone hooked up to his network with dhcp enabled, they would grab his external ip from his linux box, rendering the firewall useless. On Thu, 12 Jul 2001, Jeff Tanner wrote:
Ok well what about this.. Can I do fire walling with just one NIC card? All I was trying to accomplish was have one NIC for my internal network one for my external, can I just do that with one?
Jeff
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Chad Whitten Network/Systems Administrator Nexband Communications chadwick@nexband.com
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday 12 July 2001 17:23, you ( Jeff Tanner ) wrote:
Ok well what about this.. Can I do fire walling with just one NIC card? All I was trying to accomplish was have one NIC for my internal network one for my external, can I just do that with one?
Jeff
Shouldn't be a problem. Remember to set the variables in rc.config correctly. IE: $DEV_INT=eth0 $DEV_WORLD=eth1 and so on and so forth. THen ya can set protections for external, and internal connections. I'm not linux-firewal genius so ya may wanna get confirmation from one of the firewall gurus on the list. Ambrosius - -- ¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ??????????????????????????????? Name: Harold aka "Ambrosius" Email: ambrosius@mailandnews.com (L)ICQ Number: 117212600 Distro: SuSE Linux 7.1 Pro Registered Linux User: 216397 ¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ??????????????????????????????? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7Tj3R1UIAeY3WgCcRAqjXAJ9zDO5jjADb68pDzaHhznKdckOumQCdH4Q9 7aC2t5jajc9JZsg8kLNXCrE= =HSdm -----END PGP SIGNATURE-----
On July 12, 2001 10:23 pm, Jeff Tanner wrote:
Ok well what about this.. Can I do fire walling with just one NIC card? All I was trying to accomplish was have one NIC for my internal network one for my external, can I just do that with one?
Sounds like you mean two NIC. One for the internal and one for the external. If so works fine. Nick
participants (4)
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Ambrosius -
dog＠intop.net -
Jeff Tanner -
Nick Zentena