implementation of a software router

[asankaan]

Hi,

I have a leased line (64kbps) with a modem from ISP. I want to share that internet connection with 5-6 other computers. So connecting that modem with a router and connecting router to a switch will do that.
But, suddenly my router failed due to a power issue.

I'm planing to go with a software router which is much less and have much more features.
is it possible to implement a software router? My modem is Tellabs 8110 (STU160) with 25 pin serial interface.

Thanks in advance.

Asanka

[alex.blackbit]

yes, that is absolutely possible, asankaan.
the gentoo home router guide is a very good starting point for that.
what you need is iptables, that's for routing and firewalling, but you will want some other services too.
i recommend using net-firewall/shorewall, it is very flexible and comfortable.

[asankaan]

Thanks for your reply.
Anyhow i doubt whether it will work for my case as i have a leased line with a different modem than an ADSL router.
do you have any idea about that?

Asanka.

[Carnildo]

If you can connect your computer directly to the modem, you should be able to use the computer as a router. You may need a 25-pin to 9-pin serial adapter, or a 25-pin to USB adapter, depending on what ports your computer has.

[alex.blackbit]

it does not depend on how you connect to the outer world.
since you said you have a leased line, i guess you will be using ppp.
this will give you a network device ppp0, and you will then route between ppp0 and ethx. that's totally normal.

[aidanjt]

64kbps is ISDN. Although you were a bit vague about the configuration of the ISDN terminal adapter. But the aforementioned gentoo home router guide will certainly give you a helping start. Report back here with any difficulties you encounter.
_________________

[jcat]

Indeed. 64kbps "Leased Line" is overstating things a tad



Cheers,
jcat