(E-Mail Removed) (David Efflandt) wrote in
news:(E-Mail Removed):
-snippage-
FWIW, finally decided on Red Hat 7 for a distro... it was the only one I
had left I didn't try...
> Is your cable modem just a modem or modem/router? In other words, if
> you do the above, can you get on the internet, or do you have to use
> dhcp? The best answers depend upon that and whether more than 1
> private IP can connect through it.
No, the cable modem is just a plain modem. It normally connects to the
SMC router's WAN port with a short, CAT5 straight cable. I have DHCP
server for the LAN side disabled in the router and fixed IP's on all
boxes. When connected in this configuration:
|cable modem|-->|router|--PC's
....all boxes have internet as well as intranet access.
My ISP uses DHCP for my IP, but it rarely changes unless I disconnect the
modem for more than a couple hours. I just leave the "Dynamic IP
address" setting in the router enabled but disable DHCP on the LAN. I did
have it set up once and I didn't like having to constantly look up IP's
and there were sporadic connection losses and IP conflicts with the
windows machines. My file server still has no internet access
(WinME/2kserver) since it kindly "disabled my interface" one day when I
booted it up... I was going to change it over to Linux eventually anyhow,
I suppose this is a good enough reason, huh?
Right now, I have eth1 removed from the box as I figured I'd get eth0
working dependably and then put eth1 back in, KUDZU and then work on the
router/LAN side from there. The Linux server is presently connected to
the fourth port on the router and connecting with no problems. It'll also
connect if I reboot the cable modem and plug it straight into eth0. I
just have to change the gateway IP.
So, basically I can get internet to the RH box either straight out of the
modem or through the router if the modem feeds the SMC's WAN port. I just
can't seem to get the gateway box to pass the packets correctly in the
following configuration...
cable
modem|-->|eth0~gateway~eth1|-->|router WAN port|-->PC's
>> - eth1 can be assigned 192.168.0.2 static
>> - eth1 connects to the SMC's 10BaseT WAN port
>
> You need to masquerade any traffic going out eth0 as your eth0 IP and
> use a different network for eth1. Proxy arp might might be an
> alternative with IPs you have, but eth0 would need different
> netmask/broadcast and it depends whether your modem/router accepts
> multiple private IPs on its LAN side.
I never tried it... I've always left them at 192.168.2.x, but when I did
have DHCP enabled for awhile, there were IP's *way* different than those,
so I would be inclined to think it accepts them alright..
> eth1 should have _NO_ gateway. It should automatically get a net
> route for its network if eth1 is brought up by network scripts. But
> you might need to change eth1 IP to different network like 192.168.1.x
> if Linux is masquerading it.
Okay... so eth0, which is 192.168.0.1, looks to my ISP's gateway IP to
get connectivity, and that's working great presently.
If I follow you correctly, I should have the following settings for eth1
in Netconf:
- NO gateway entry
- eth1's IP changes to 192.168.1.1
- 192.168.1.0 in the "network" field??
- Does my internet IP need to go anywhere?
As for the router...
- Router's gateway IP should point to eth1's IP (192.168.1.1)?
- Should I still leave the setting in the router on Dynamic IP?
- Netmask on all networks is default 255.255.255.0. Should I change that?
- eth0, eth1 and the router should ALL point to the ISP's DNS Server IP??
Dumb question, but say I want to add some maps to the Quake3 directory on
the server box, will the PC's on the LAN side be able to see/push files
to it?
>> Now, onto the question of NAT routing. Currently, the SMC handles
>> that fine. But, if there is now a gateway/FW between it and the
>> internet, will this break the router's NAT? Will I have to set up IP
>> forwarding/NAT for each internal IP on the LAN? I've done some
>> studying on IPtables and Masq and it just seems totally Geek to me.
>
> The Linux router will not see any IPs on the LAN side of SMC, so it
> just needs to NAT its eth1 network (essentially SMC WAN IP). The SMC
> will still NAT everything behind it.
So it's just forwarding through eth1, then to teh router and LAN PC's?
What files do I need edit to set up for this? I assume that the netconf
or internet config utilities will not allow me to set this up? IS there a
console/term script/front end for setting this up?
>> Am I perhaps better off not putting a gateway/FW before the router
>> and just install Linux with a firewall on the Q3 server box? I'd
>> *really* prefer it if I could get that server *outside* my LAN
>> though. I don't want to run Windows on it regardless for evident
>> security reasons.
>
> That might be easiest. If you do point the DMZ at Linux, you should
> still run a firewall on it to block anything except what you need
> (especially low ports < 1024).
I'd sure like to do it on the Red Hat box and then I could free up the
fourth port on the router (wish I'd gotten an 8-port, but for $20 I'm not
complaining!). It's become an obsession now... I will NOT be defeated or
else the box ends up dead in a field from a fatal GSW!! :-)
I'm very stubborn about some things and the fact that my Q3 server has
been down two weeks is *not* helping!
The bummer part is I had this set up and working on W2kServer, but I've
had just one worm attack too many. I'd rather go through the trouble
(investment, really) of learning Linux than dealing with the crap M$ puts
out (can you say "retail beta"?). How many times have you ever *really*
wanted to hide your file extensions??? The only reason I can figure that
M$ would leave that alone for 8 years is so the .vbs on the skript-kiddie
specials stays hidden, thus get executed! Heck, any halfway respectable
freeware programmer would have fixed a hole ("M$ feature") like *that* in
the first update! And why, Dear Lord, is it toggled like that in NT/2k??
Okay, I'm drifting away here... I think there's at least hope for me...
I am a broadcast engineer by trade, after all! A few things I've taught
myself in the past are:
-manually edit shaders and other "c" files for Quake 3 modelling
-run a DOS multinode BBS and multitask in Desqview
-install & run various operating systems, such as OS/2, BeOS and W2k
-build, repair and upgrade PC's
-set up a home LAN w/internet connection sharing
-operate, repair and maintain all kinds of new broadcast equipment
-install a 10,000 watt transmitter and related remote control gear
-wire and set radio studios
-built my own home FM stereo radio station
-operate a TV production console and Ampex digital optics
-figured out how multitower directional AM antenna systems actually work
-learned how to make a file executable with chmod -x
I'm fairly technically inclined, so I think I can get Linux down-pat
eventually. It's just that I've picked a very complicated project for a
newbie to jump into! There's a LOT to learn with Linux and one can't
expect to learn everything overnight! :-) And obviously, newbies
sometimes need some help that's in "newbie" terminology... a *lot* of man
pages I've read remind me of internet RFC docs, and yes, I've read more
than a few of those while learning about TCP/IP and UDP protocols!
And I *do* appreciate the help... :-)
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