nixCraft

We have a gateway server fedora 6 with kernel version 2.6.18 which has a challenging problem different routing tables have been created under /etc/iproute2/rt_tables as the server has multiple outbound links over a single network interface and these these tables have been marked with fwmark values associated with iptables to mark different traffic(different protocols and source addresseand each table has different gateways to different outbound links.The problem is when the server reboots all the virtual routing tables get flushed out and only the default table with default gateway is what remains.Is there a way or method which would preserve these tables even if server reboots,then please advice.Example of output:
ip rule
32764: from all fwmark 0x20 lookup www
32767: from all lookup default.

Add your route command to /etc/rc.local or configure static routes

__________________
Rocky Jr.
You may have my body & soul, but you will never touch my pride!

If you have knowledge, let others light their candles at it.

Certified to work on HP-UX / Sun Solaris / RedHat

Hi,
Your server act as a Gateway machine , it means your server have 2 NIC.
If your structure is as follow:

WAN IP

|

|

----------------NIC A------------------

| LINUX BOX |

-------------NIC B --------------------

|

|
intranet

suppose NIC (eth0)--- A ---- have a WAN IP such as AAA.AAA.AAA.AAA
NIC (eth1)----B ------have a Local class C IP such as 192.168.1.0-524 (range )
then if you want to write/set routing table then pls do as following :

vi /etc/sysconfig/network-script/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=static
HWADDR=xxxxxxxxxx
IPADDR=AAA.AAA.AAA.AAA
GATEWAY=routers' another end IP which is connected to outside of world (WAN IP)
NETMASK=255.255.255.248
ONBOOT=yes
TYPE=Ethernet

vi /etc/sysconfig/network-script/ifcfg-eth1

DEVICE=eth0
BOOTPROTO=static
HWADDR=xxxxxxxxxx
IPADDR=192.168.1.254
GATEWAY=AAA.AAA.AAA.AAA
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet



And if your machine have a single NIC then

vi /etc/sysconfig/network-script/ifcfg-eth1

DEVICE=eth0
BOOTPROTO=static
HWADDR=xxxxxxxxxx
IPADDR=192.168.1.254
GATEWAY=AAA.AAA.AAA.AAA
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

and add DEFAULT routing table as follow

1.route add default gw AAA.AAA.AAA.AAA(WAN IP )

hi
thanks dear for the Scrapt