[plug] IP Masquerading

[Tony Clark]

I wonder if you have enabled IP forwarding...On RH it's in
/etc/sysconfig/network.

Tony



At 00:45 2/12/98 +0800, you wrote:
>I apologise in advance for the length of this message, but I probably 
>need to give all this information so you can maybe help.
>
>I've asked about this before and got some help from PLUG which 
>got me about halfway.
>
>What I want to do is to set up my linux box to handle IP 
>masquerading on my dialup internet connection.  I've done what it 
>says to do in the IP-masquerading HOWTO, and I can get so far 
>and then no further.
>
>I have:
>
>1.  Rebuilt my kernel with the right options
>2.  Made the right modules
>3.  Installed modules in rc.local
>4.  Assigned valid local IPs to all machines on my network 
>(linux=192.168.1.1, wombat=192.168.1.5, wallaby=192.168.1.3, 
>netmask=255.255.255.0)
>5.  Set up a ppp connection to my ISP with pppd.  This bit 
>definitely works, as I can dial up and browse the web.
>6.  Set up the nameserver for non-local addresses to my ISPs DNS.
>7.  Configured my windows 95/98 machines to use the linux box as 
>the gateway
>8.  Set up IP Forwarding policies on the linux box with ipfwadm
>
>According to the HOWTO, that's about all I need to do.  I should 
>now be able to see the internet from my other boxes without any 
>problems at all.  i.e, I should just be able to use a hostname or IP 
>number in my mail prog, and get mail via pop or do the same for 
>nntp with my newsreader without any problems at all.  Problem is, 
>it don't go!
>
>The web side of things I got around by setting up squid.  That 
>works well.  It's just the rest of it that's got me stuffed.  Somebody 
>suggested local e-mail and news servers on the linux box, but I 
>don't think that's a very good idea when I'm on a dialup which isn't 
>permanently connected.
>
>Can anyone who's done this sort of thing give me a hand, please - 
>my MidPoint Gateway trial version is about to expire and I'd like to 
>have this sorted before it does (next week!)
>
>Cheers,
>
>John Breen
>+----------------------------+------------------------------+
>| John Breen                 | wombat at mad.scientist.com     |
>| Wombat Computer Services   | http://www.bis.net.au/wombat |
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Tony Clark

Digital and System Group Manager
ERG Telecommunications

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