02-02-2013
Change Default gateway
Hi..I have to change default gateway in my linux machine. Its OS is RHEL6.
I followed following steps.
1.run command ip route to check current default gateway
2.delete that gateway with command
route del default gw x.x.x.x eth2
3.Add new gatewy with command below
route add default gateway x.x.x.x eth0
4.Also ensure /etc/sysconfig/network has new gateway entry with eth name in it.
NETWORKING=yes
HOSTNAME=N1
GATEWAY=x.x.x.x
GATEWAYDEV=eth0
But when we restart network service it moves back to old gateway.
Kindly let me know how to make it permanent.
Thanks !!
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LEARN ABOUT OSF1
ripquery
ripquery(8) System Manager's Manual ripquery(8)
NAME
ripquery - Queries RIP gateways
SYNOPSIS
/usr/sbin/ripquery [-1] [-2] [-[a5] authkey] [-n]
[-p] [-r] [-v] [-w time] gateway ...
FLAGS
Sends the query as a version 1 packet. Sends the query as a version 2 packet (default). Specifies the authentication password to use for
queries. If -a specified, an authentication type of SIMPLE will be used, if -5 is specified, an authentication type of MD5 will be used,
otherwise the default is an authentication type of NONE. Authentication fields in incoming packets will be displayed, but not validated.
Prevents the address of the responding host from being looked up to determine the symbolic name. Uses the RIP POLL command to request
information from the routing table. This is the default. If there is no response to the RIP POLL command, the RIP REQUEST command is
tried. The gated daemon responds to a POLL command with all the routes learned through RIP. Used the RIP REQUEST command to request
information from the gateway's routing table. Unlike the RIP POLL command, all gateways should support the RIP REQUEST. If there is no
response to the RIP REQUEST command, the RIP POLL command is tried. The gated daemon responds to a REQUEST command with all the routes he
announces out the specified interface. Because of limitations in the UDP interface, on systems based on BSD 4.3 Reno or earlier, REQUESTs
respond about the interface used to route packets back to the sender. This can be avoided by running ripquery on the host being queried.
Displays version information about ripquery before querying the gateways. Specifies the time in seconds to wait for the initial response
from a gateway. The default value is 5 seconds.
DESCRIPTION
The ripquery command is used to request all routes known by a RIP gateway by sending a RIP request or POLL command. The routing informa-
tion in any routing packets returned is displayed numerically and symbolically. The ripquery command is intended to be used as a tool for
debugging gateways, not for network management. SNMP is the preferred protocol for network management.
The ripquery command by default uses the RIP POLL command, which is an undocumented extension to the RIP specification supported by routed
on SunOS 3.x and later and by gated 1.4 and later. The RIP POLL command is preferred over the RIP REQUEST command because it is not sub-
ject to Split Horizon or Poisoned Reverse. See the RIP RFC for more information.
RELATED INFORMATION
Commands: gated(8), gdc(8), ospf_monitor(8), routed(8) delim off
ripquery(8)