network issue

[Gilboa Davara]

On Wed, 2006-12-20 at 01:10 +0900, Shawn wrote:
> Hi,
> 
> Please help if you understand networking.
> I believe something is misconfigured in my system when I
> use /usr/bin/sytem-config-network.
> 
> The network is fine using DHCP and "automatically obtain DNS info from
> provider"  However, it stops when I set it statically.
> 
> This is what it shows under /etc/sysconfig/network-scripts/ifcfg-eth0
> 
> DEVICE=eth0
> BOOTPROTO=dhcp
> ONBOOT=yes
> TYPE=Ethernet
> USERCTL=no
> PEERDNS=yes
> IPV6INIT=no
> NETMASK=*************
> IPADDR=*************
> GATEWAY=*************
> 
> Using /sbin/ifconfig I get my inet addr, bcast and mask.
> 
> Now, if I enter "statically set ip addresses" (in the system-config-
> network gui) and enter the inet addr, bcast and mask; and stop/restart
> the network via gui /usr/sbin/system-config-services
> 
> then /etc/sysconfig/network-scripts/ifcfg-eth0 is changed to
>  
> DEVICE=eth0
> BOOTPROTO=none
> ONBOOT=yes
> TYPE=Ethernet
> USERCTL=no
> PEERDNS=yes
> IPV6INIT=no
> NETMASK=*************
> IPADDR=*************
> GATEWAY=**********
> 
> Note: another difference is that:
> 
> 
> Note work set statically
> [me at home network-scripts]# /sbin/ip route
> aa.aaa.aaa.0/24 dev vnic0  proto kernel  scope link  src aa.aaa.aaa.2
> bbb.b.ccc.0/2 dev eth0  proto kernel  scope link  src bbb.b.eee.29
> 
> working under dhcp
> [me at home network-scripts]# /sbin/ip route
> aa.aaa.aaa.0/24 dev vnic0  proto kernel  scope link  src aa.aaa.aaa.2
> bbb.b.ccc.0/21 dev eth0  proto kernel  scope link  src bbb.b.eee.29
> ddd.ddd.d.d.d dev eth0  scope link
> default via bbb.b.ccc.1 dev eth0
> 
> Help!
> 
> Oh last info is that I am using 
> 210.230.70.2
> 210.230.70.2
> rosenet.ne.jp when I set dns statically
> I think that is right
> $ nslookup rosenet.ne.jp
> Server:         210.230.70.2
> 
> Shawn
> 
> P.S. this is in an attempt to resolve past threads on realtek drivers
> (not the issue) or lan cards (not the issue)
> 

DHCP gives the additional routing information (defaut gw) that you'll
need to configure manually if you switch to static address. 
Look for the default gateway field in the network configuration GUI.

- Gilboa