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Old 04-08-2005, 11:56 AM   #1
ehedetniem
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Registered: Apr 2005
Posts: 4

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Gateway ip address removed from /etc/sysconfig/network files


This is my first time posting to this website. I'm hoping someone can help me. Each morning some of my servers are losing their gateway address/statment from /etc/sysconfig/network. I'm not sure what's happening. I have to manually add it again and reboot and everything is fine. I am using the eth1 card. I have 2 nic cards installed. I have the following configuration set for each card in /etc/sysconfig/network-scripts/:
eth0
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=no

eth1
DEVICE=eth1
IPADDR=172.30.49.15
NETMASK=255.255.255.0
GATEWAY=172.30.49.1
ONBOOT=yes

The /etc/sysconfig/network file shows:

NETWORKING=yes
HOSTNAME=server1
GATEWAY=172.30.49.1

- When I do an ifconfig it shows the correct ip address but only the gateway statement is missing from /etc/sysconfig/network. Is this caused by leaving the BOOTPROTO=dhcp on eth0? Should I add BOOTPROTO=static for eth1?

Thanks so much!
 
Old 04-09-2005, 02:16 PM   #2
btmiller
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Registered: May 2004
Location: In the DC 'burbs
Distribution: Arch, Scientific Linux, Debian, Ubuntu
Posts: 4,284

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That's a very good possibility. DHCP doesn't just provide a client with an IP address, but also gateway and other network topology information. This would override anything in the static config files, I think. So if the machines are to be set up statically, you should have bootproto=static in your configs.

Is there a DHCP server running on your network? That would be something to investigate further.
 
Old 04-12-2005, 11:29 AM   #3
ehedetniem
LQ Newbie
 
Registered: Apr 2005
Posts: 4

Original Poster
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Thanks for the reply...
Found out what it was. Red Hat 9.0 looks in the /etc/sysconfig/networking/profiles/default directory and if the same ifcfg-ethX isn't there, then it could overwrite some of the network settings. I added the ifcfg-ethx to this directory and haven't had any problems.
 
  


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