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Old 09-25-2001, 10:19 PM   #1
LQ Newbie
Registered: Sep 2001
Posts: 3

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Question ifup-operation fails

Ok. first message board post so be gentle.
also some times cant spell for jack. i know this.

Ok. here goes.
redhat 7.1, local net setup behind a nat router (sygate on nt box), cable modem. 2 nicks in linux box. eth0 is local ip (static). everthing works ok.
now along come bright idea and install 2nd nic. it works. tested as static first. no probs. i want to pull a ip from cable modem. after some digging and lots of learning i have found that i am getting the IP from modem. I found it in a file in /etc/dhcpc/ so i am pulling ip info into this file but the eth1 nic will not start. what am i missing. id i take the ip addres and hard code it (i use linusconfig or network admin) it works fine, but that is not a good idea. so what am i missing?
new-by aka Fred.
Old 09-25-2001, 11:37 PM   #2
Registered: Jun 2001
Location: Fairfax, California
Distribution: RH 9.0, RH 7.3, Mandrake 8.0
Posts: 986

Rep: Reputation: 30
Could you be a little more specific in describing your setup? Where does the cable modem fit in your network's configuration?
Like this:

Cable Modem
NT Router (performing NAT)
   ^              ^
   |(eth0,        |(static IP)
   |static IP)    |
Linux Box      Other Internal Boxen

External Network
NT Router (performing NAT)
   ^              ^
   |(eth0,        |(static IP)
   |static IP)    |
   |           Other Internal Boxen
Linux Box-->(via eth1, using DHCP)--> Cable Modem-->Internet

Last edited by DMR; 09-25-2001 at 11:39 PM.


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