Arch Linux

Gwasanaethau

Member

From: Baile Átha Clíath, Éire

Registered: 2009-11-20

Posts: 12

Static IP routing problem

Hi all!

I have a problem with static routes and was wondering if anyone can help me. Despite turning off the network daemon and setting up my interfaces with dhcpcd -G, something keeps writing a default gateway to the wrong interface in my routing table. Does anyone have any idea why this happens?

My topology is thus:

(((INTERNET)))

      |  DSL link

Router (IP 192.168.1.1)

      | Wireless

wlan0: 192.168.1.* (DHCP)
Desktop
eth0: 192.168.2.* (DHCP)

      | Cat5 UTP link

Router (IP 192.168.2.1)

      | Cat5 UTP link

Laptop 192.168.2.* (DHCP)

Something keeps setting the default gateway to both interfaces on the desktop - but it sets eth0 first, which means all requests outside 192.168.1.0 get sent the wrong way - makes surfing a pain! I've tried setting routes up manually with:

route add default gw 192.168.1.1 dev wlan0
route add -net 192.168.2.0 netmask 255.255.255.0 dev eth0

which works for a while until something resets the table and gives me something along the lines of:

$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.2.0     *               255.255.255.0   U     202    0        0 eth0
192.168.1.0     *               255.255.255.0   U     303    0        0 wlan0
default         192.168.2.1     0.0.0.0         UG    202    0        0 eth0
default         192.168.1.1     0.0.0.0         UG    303    0        0 wlan0

Any ideas out there?

Mark.

eldragon

Member

From: Buenos Aires

Registered: 2008-11-18

Posts: 1,029

Re: Static IP routing problem

if these are all static connections, you could set them through rc.conf

there is an entry to setup your default gw.

dont forget to edit /etc/resolv.conf and add some nameservers too