Good morning at all, thanks for previous help, but I have another ask. I have a few experience of Linux world''s, and I need to configure a Linux PC as router, what are the steps? What do I do? Thanks.
Blu wrote:> Good morning at all, thanks for previous help, but I have another ask. I > have a few experience of Linux world''s, and I need to configure a Linux > PC as router, what are the steps? What do I do?That''s a pretty vague question, so I''ll give you a vague answer: Get any linux distribution and do a minimum install. Setup the network cards and interfaces. setup the routes and/or routing daemons (setup the firewalling) In the popular distros, most of these steps are done for you in the install. good luck. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Damion de Soto - Software Engineer email: damion@snapgear.com SnapGear --- ph: +61 7 3435 2809 | Custom Embedded Solutions fax: +61 7 3891 3630 | and Security Appliances web: http://www.snapgear.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Free Embedded Linux Distro at http://www.snapgear.org --- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
I''ll be a tad more helpful, but not much. Setting up a linux firewall/router is pretty specific to your network layout/configuration. You probably will be better off checking these links and going from there: General Linux setup/config documentation: http://www.tldp.org This document is a bit dated in that it doesnt include iptables as one of the firewalling software options, but it still is better than nothing. http://www.tldp.org/HOWTO/Firewall-HOWTO.html The HOWTO at http://www.lartc.org is good too (hehe, had to give kudos) Hope it helps! Derek On Thursday 25 September 2003 04:12 pm, Damion de Soto wrote:> Blu wrote: > > Good morning at all, thanks for previous help, but I have another ask. I > > have a few experience of Linux world''s, and I need to configure a Linux > > PC as router, what are the steps? What do I do? > > That''s a pretty vague question, so I''ll give you a vague answer: > > Get any linux distribution and do a minimum install. > Setup the network cards and interfaces. > setup the routes and/or routing daemons > (setup the firewalling) > > In the popular distros, most of these steps are done for you in the > install. > > good luck._______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
www.netfilter.org has up to date Kernel 2.4 firewall concepts. The links are also pretty good at describing how everything works if you can''t find what you need at the site itself. -----Original Message----- From: Derek [mailto:derek@traffic-power.com] Sent: Thursday, September 25, 2003 4:40 PM To: Blu Cc: LARTC@mailman.ds9a.nl Subject: Re: [LARTC] Linux router configuration?? I''ll be a tad more helpful, but not much. Setting up a linux firewall/router is pretty specific to your network layout/configuration. You probably will be better off checking these links and going from there: General Linux setup/config documentation: http://www.tldp.org This document is a bit dated in that it doesnt include iptables as one of the firewalling software options, but it still is better than nothing. http://www.tldp.org/HOWTO/Firewall-HOWTO.html The HOWTO at http://www.lartc.org is good too (hehe, had to give kudos) Hope it helps! Derek On Thursday 25 September 2003 04:12 pm, Damion de Soto wrote:> Blu wrote: > > Good morning at all, thanks for previous help, but I have anotherask. I> > have a few experience of Linux world''s, and I need to configure aLinux> > PC as router, what are the steps? What do I do? > > That''s a pretty vague question, so I''ll give you a vague answer: > > Get any linux distribution and do a minimum install. > Setup the network cards and interfaces. > setup the routes and/or routing daemons > (setup the firewalling) > > In the popular distros, most of these steps are done for you in the > install. > > good luck._______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
I am going to assume you want the most basic router, just two interfaces. 1.) Make sure both network cards have been detected. ifconfig eth0 ifconfig eth1 2.) Set up each interface on its own network, make sure the interface has been activated, you can use ifconfig for this. 3.) issue the command echo 1 > /proc/sys/net/ipv4/ip_forward to enable ip fowarding, w/o this the kernel will not send packets between interfaces 4.) set the clients behind the router to point to the internal ip of your router Any changes made to the system will have to be initialized during the boot process. Of course if you have ip addresses that you would like to nat/masq behind the router, you will have to use iptables. You really should be more specific on your needs. Good luck.> Good morning at all, thanks for previous help, but I have another ask. I have a few experience of Linux world''s, and I need to configure a Linux PC as router, what are the steps? What do I do? > Thanks._______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
On Fri, 2003-09-26 at 00:25, Blu wrote:> Good morning at all, thanks for previous help, but I have another ask. > I have a few experience of Linux world''s, and I need to configure a > Linux PC as router, what are the steps? What do I do? > Thanks.what you could do is. go to http://leaf.sf.net this is a router/firewall on a floppy disk system, that also can boot from hd, flash, cd, or whatever. it''s dead easy to setup. reboots very quickly. and only uses media on boot so you wont wear out you''r floppy, hd, cd whatever on constant spinning. best regards -- Ronny Aasen <list@datapart-as.no> _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Ryan Johnson wrote:>I am going to assume you want the most basic router, just two interfaces. > >1.) Make sure both network cards have been detected. >ifconfig eth0 >ifconfig eth1 >Can I have both the network cards in the same n/w...? Becoz If I try to use both NIC''s with the same n/w, running <$ route -n> we can see either eth1 or eth0 repeated twice. Pls let me know where is the problem..? Regards -Raghu>2.) Set up each interface on its own network, make sure the interface has been activated, you can use ifconfig for this. >3.) issue the command >echo 1 > /proc/sys/net/ipv4/ip_forward >to enable ip fowarding, w/o this the kernel will not send packets between interfaces >4.) set the clients behind the router to point to the internal ip of your router > >Any changes made to the system will have to be initialized during the boot process. > >Of course if you have ip addresses that you would like to nat/masq behind the router, you will have to use iptables. > >You really should be more specific on your needs. > >Good luck. > > > > >>Good morning at all, thanks for previous help, but I have another ask. I have a few experience of Linux world''s, and I need to configure a Linux PC as router, what are the steps? What do I do? >>Thanks. >> >> > >_______________________________________________ >LARTC mailing list / LARTC@mailman.ds9a.nl >http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ > > >_______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
On Fri, 2003-09-26 at 19:32, Raghuveer wrote:> Can I have both the network cards in the same n/w...? Becoz If I try to > use both NIC''s with the same n/w, running <$ route -n> we can see either > eth1 or eth0 repeated twice. Pls let me know where is the problem..?you don''t need to do this. just add both IP addresses to the same NIC, viz ; ip address add 192.168.0.254/24 dev eth0 ip address add 10.128.254.254/16 dev eth0 and proceed as usual. The subnet routes are added automatically. /steve
Ryan Johnson wrote:>Could you send me the output of route -n? > >Your two network cards should not be in the same network, if they are, it is not a rotuer. The whole purpose of a router is a gateway for clients on a network to get to another network that they (clients) do not know how to reach. > >Ryan > >Anyway thanks Ryan, I just wanted to confirm from you, whether we can have two NIC''s in a m/c connected to a same network. Output of route -n is :- Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 192.168.1.2 0.0.0.0 UG 0 0 0 eth0 what I was expecting was:- Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 192.168.1.2 0.0.0.0 UG 0 0 0 eth0 Regards -Raghu> > >>Ryan Johnson wrote: >> >> >> >>>I am going to assume you want the most basic router, just two interfaces. >>> >>>1.) Make sure both network cards have been detected. >>>ifconfig eth0 >>>ifconfig eth1 >>> >>> >>> >>Can I have both the network cards in the same n/w...? Becoz If I try to >>use both NIC''s with the same n/w, running <$ route -n> we can see either >>eth1 or eth0 repeated twice. Pls let me know where is the problem..? >> >>Regards >>-Raghu >> >> >> >>>2.) Set up each interface on its own network, make sure the interface has been activated, you can use ifconfig for this. >>>3.) issue the command >>>echo 1 > /proc/sys/net/ipv4/ip_forward >>>to enable ip fowarding, w/o this the kernel will not send packets between interfaces >>>4.) set the clients behind the router to point to the internal ip of your router >>> >>>Any changes made to the system will have to be initialized during the boot process. >>> >>>Of course if you have ip addresses that you would like to nat/masq behind the router, you will have to use iptables. >>> >>>You really should be more specific on your needs. >>> >>>Good luck. >>> >>> >>> >>> >>> >>> >>>>Good morning at all, thanks for previous help, but I have another ask. I have a few experience of Linux world''s, and I need to configure a Linux PC as router, what are the steps? What do I do? >>>>Thanks. >>>> >>>> >>>> >>>> >>>_______________________________________________ >>>LARTC mailing list / LARTC@mailman.ds9a.nl >>>http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ >>> >>> >>> >>> >>> >>_______________________________________________ >>LARTC mailing list / LARTC@mailman.ds9a.nl >>http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ >> >> > > > >-- ****** This email is confidential and is intended for the original recipient(s) only. If you have erroneously received this mail, please delete it immediately and notify the sender. Unauthorized copying, disclosure or distribution of the material in this mail is prohibited. Views expressed in this mail are those of the individual sender and do not bind Gsec1 Limited. or its subsidiary, unless the sender has done so expressly with due authority of Gsec1.****** _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/