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Asked: 2015-03-25 07:27:05 +0800 CST

Make some route info persistent on RHEL

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I would like to make the following route info persistent.

I know how to do it for the default, but how about this line:

10.27.74.0      *               255.255.255.0   U     0      0        0 eth0



Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.27.74.0      *               255.255.255.0   U     0      0        0 eth0
link-local      *               255.255.0.0     U     1002   0        0 eth0
default         10.27.74.253    0.0.0.0         UG    0      0        0 eth0
linux

2 Answers

  1. You create a file /etc/sysconfig/network-scripts/route-eth0

    And add the following:

    10.x.x.x/y via 10.x.x.x

    Where 10.x.x.x/y is the IP or subnet you want to route and 10.x.x.x is the gateway for that subnet.

    You then restart your network or disable/enable eth0 and it should automatically bring up your static route.

    • 2

  2. The most compatible way is to create a route file under /etc/sysconfig/network-script and to specify here the desired route.

    In your case, create the file /etc/sysconfig/network-script/route-eth0 and put into it the following directive: 10.27.74.0/8 via 10.27.74.253 After that, issue the command service network restart

    This setup works both with and without NetworkManager. You can read more here and here.

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