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06-28-2005, 08:42 PM
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#1
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LQ Newbie
Registered: Apr 2004
Location: Sydney, AU
Distribution: Mandrake 10.1
Posts: 1
Rep:
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Firewall : Multiple external interfaces
AT home I presently have a cable modem connected to a Linux firewall (RH) using iptables and 2.4.30 kernel. I have inherited an ADSL modem from work. Can I have both connected to this Firewall, ie I will need an additional network card (making three), or should I get a second firewall box up and running?
Regards,
Robert
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06-28-2005, 09:08 PM
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#2
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Senior Member
Registered: Feb 2003
Location: The Arctic
Distribution: Fedora, Debian, OpenSuSE and Android
Posts: 1,820
Rep:
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You can certainly have more than one external interface connected to the box, but you will need a NIC for each connection. Then set up routing for each interface. For example route client a to the 1st interface and client b to the second, and so forth. Iptables will support as many interfaces as the system can support, it just takes a few more lines in the firewall for each. Now load balancing might take a bit to set up, I would read up on firewall building for such things if that is the goal.
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06-28-2005, 09:18 PM
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#3
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LQ Guru
Registered: Jan 2003
Location: Seymour, Indiana
Distribution: Distribution: RHEL 5 with Pieces of this and that.
Kernel 2.6.23.1, KDE 3.5.8 and KDE 4.0 beta, Plu
Posts: 5,700
Rep:
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You can do ethernet channel bonding of the two external links. Google around the net and here for more if. Found this link here http://www.linuxquestions.org/questions/history/277239
Google the Linux way at ' http://www.google.com/linux '
Brian1
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