Hide Forgot
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030312 Description of problem: Hi There is no means to handle which device has the default route. At the moment I have the following interfaces in my computer 1. eth0 static IP 2. eth1 dynamic IP 3. Standard modem ppp0 There is an ADSL modem on eth1 supplying the IP etc to eth1 If I want to use the ppp link through ppp0 then I fisrt have to shutdown the eth1 link even though the ADSL link may be down and the IP of eth1 is just a DHCP connection. Somehow there have been two default routs entered into the routing table. ppp adds one and somehow another on is getting added for eht1 along with it's normal static route. How is this additional default route being added to eth1 ??? Is it something to do with the fact that eth1 is asigned through dhcp ?? Note I haven't actually activated the ADSL link at the moment. Version-Release number of selected component (if applicable): redhat-config-network-1.0.3-1.i386.rpm How reproducible: Always Steps to Reproduce: 1.NA 2.NA 3.NA Actual Results: NA Expected Results: To be able to tell eth1 to not be the default route. Additional info: I know it will have to be the default route when I use the net through it. But at the moment I'm just wondering why?
why do you set so many default routes? default routes are there to define the route to any network. I guess you have private networks on eth0 and eth1. So why don't you set network routes for them instead of default gateways???
I didn't set the default route... Thats what I'm talking about. Somehow the startup or "ifup eth1" is setting the default route. The settings for all devices are configured with neat. I can not find any configuration option that would say "set as default route" It won't matter in another week or two because I hopefully wont be needing the modem. But I don't get why starting up eth1 should decide to install itself as the ANOTHER default route. (There is already a default route in the routing table) If this was connecting to another network then I would use a gateway setting! But at the moment it is just another ethercard. And I only want the static route entry NOT the default route entry. I can manually delete it in the post startup script but that is a pain. I only want the one default route at the moment for the internet and that is set by pppd which is also configured through neat. Here is the ifcfg-eth1 file # Please read /usr/share/doc/initscripts-*/sysconfig.txt # for the documentation of these parameters. USERCTL=no BOOTPROTO=dhcp HWADDR=52:54:05:e3:c5:5a DEVICE=eth1 TYPE=Ethernet ONBOOT=yes NETWORK=192.168.0.0 BROADCAST=192.168.0.255 PEERDNS=no On the end of this cable is a new adsl modem that supplys the ip etc. I was wondering where the default route option is coming from. Especially considering the fact there is already a default route in the routing table for the ppp0 link. Thanks Richard
show me $ route -n
With eth1, lo and ppp0 on Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 203.24.100.243 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 203.24.100.243 0.0.0.0 UG 0 0 0 ppp0 Now with eth1 also activated Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 203.24.100.243 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 192.168.0.254 0.0.0.0 UG 0 0 0 eth1 0.0.0.0 203.24.100.243 0.0.0.0 UG 0 0 0 ppp0 I also have to start this interface up from the command line using "ifup eth1" and it doesn't seem to complete the operation corectly it just pauses. I have to hit cntrl-C to quit out of the "ifup" command. The only place I can see where a default route is set in the "ifup" script is when the following does not return true "if [ -n "${DYNCONFIG}" ];" and the default route is set at the end of the "else" area for this test. It could also be the fact that the GenMask set through the DHCP negotiations is effectively setting the routing address range. But I dnon't really know enough about that to say. I'd be happy if ppp0's default was first :) Thanks Richard
hmm... this is done by the dhcp client dhclient... you may have to change that behaviour in /etc/dhclient.conf. This is not a bug... this is a dhcp configuration issue. But, this should maybe be made configurable more easy...
Thanks I'll take a look and get back to you. I wasn't sure about it. By the way this Network Config tool is excellent, it sure makes my job easier :) Richard