Default route question Post: 302405933

Sponsored Content

Operating Systems AIX Default route question Post 302405933 by shockneck on Saturday 20th of March 2010 06:47:32 PM

03-20-2010

Registered User

Quote:

Originally Posted by gsabarinath

Hello I have a question regarding default route on AIX servers. (I am using a p5 5.3 TL9 machine).[...]

1. How do I know if a route a persistant across reboots (how to Check without actually rebooting the machine :-0) . Because as per my understanding route added with "route add" command is not persistant and the same done with smitty is persistant across reboots.
2. Is it because there were no packet transfered t,hat there is no entry about x.x.202.129
[...]

There are several ways to make a route persistent. On AIX this usually means writing the information into the ODM. This is done with the mkdev/chdev commands (that are being used by SMIT but can also be used on commandline). With the lsattr command you query the ODM:

Code:

# lsattr -El inet0

shows you the routes that are defined in the ODM and thus will be active after reboot. The same information but in different format can be found by querying the ODM directly:

Code:

# odmget -q attribute=route CuAt

The route command itself however can be used for the same purpose just by adding an entry into the /etc/rc.net. This would lead to a 'permanent' route but without a trace in the ODM.
As to your second question: from the inet0 information there should be 2 default routes. As the netstat output just shows one I would think that the missing default route was removed by the route command. However, it will be back after a reboot. Best to remove it from the ODM if you don't need it.

shockneck

View Public Profile for shockneck

Find all posts by shockneck

8 More Discussions You Might Find Interesting

1. AIX

Permanent Default Route

Hi, We are running AIX 5.2. Our default gateway used to be IP Address A. Our new default gateway is IP Address B. A netstat revealed that our default route was IP address A. We manually added default route with IP address B and removed the default route with IP address A. However,...

2. AIX

Default route removed - what to do ?

Hi, After accidental default route removal serial connection doesn't work. What should I do to connect to my machine ? thanks Vilius

3. Solaris

solaris 10 u5 what happens if no default route configured

Hi, I am new to solaris 10. What is the procedure the os takes if a default route is not configured? I am using a multihomed server with 4 interfaces. It looked strange to me this morning, because i had not defined a default route it defaulted to making one up, with the ip address of another...

4. Solaris

Default route is configured, but seem to not work

Hiya, I got the default gateway set in /etc/defaultrouter file, however "netstat -nr" doesn't show anything like "default" in the routing table. As far as I know "netstat" on Solaris 10 u7 should show something like : Routing Table: IPv4 Destination Gateway Flags Ref ...

5. IP Networking

DHCP/pxeboot Situation: how to specify default route?

Greetings, I am using debian squeeze to perform the following operation: 1. pxeboot Alix 2.c board into debian installer When I get to the installer my laptop's dhcp server successfully provides an ip address but does not set up the default route. I am not sure how to provide this. I...

6. AIX

Default Route add fails

AIX version 5.3 when I try to add default gateway # route add 0 192.168.100.254 Or # route add default 192.168.100.254 I get the error 0821-275 route: socket: The file access permissions do not allow the specified action. searching on google i came across similar...

7. Solaris

Default route in system

Hi All Recently we have faced issue in SUN server after reboot of node 2 default routs has been added to system as below IRE Table: IPv4 **Destination*************Mask***********Gateway**********Device Mxfrg Rtt***Ref Flg**Out**In/Fwd* -------------------- ---------------...

8. Red Hat

IP Route add default and make permanet

Hi all, actually i'm facing this problem, we have 2 NICs on our VM.s with REDHAT 7.2 release, we made the following set up as we needed to access them from both IP ip route flush all ip route add 10.130.11.0/24 dev eno2 tab 1 ip route add 10.130.10.0/24 dev eno1 tab 2 ip route add...

LEARN ABOUT MOJAVE

dump_sockdfr

DUMP_SOCKDFR(8) 					      System Manager's Manual						   DUMP_SOCKDFR(8)

NAME

       dump_sockdfr -  Display contents of frozen route file for SOCKS server

SYNOPSIS

       dump_sockdfr [infile]

DESCRIPTION

       dump_sockdfr reads in a frozen route file for the SOCKS server and produces a listing of its contents on the standard output.

       The argument is optional; if omitted, /etc/sockd.fr is assumed.

       The frozen route file is produced by make_sockdfr and is essentially the memory image of the parsed route file. Using the frozen route file
       can reduce the start-up delay of the SOCKS server program since it no longer has to parse the file contents.

       When the SOCKS server starts, it always looks for the frozen route file /etc/sockd.fr first. If that file is not found, it  then  tries	to
       use  the  plain-text  route file /etc/sockd.route. If you use frozen route file, you must remember to run make_sockdfr every time after you
       modify the plain-text file or the SOCKS server will continue to use the frozen version of a previous route file.

FILES

       /etc/sockd.fr, /etc/sockd.route

SEE ALSO

       make_sockdfr(8), sockd.fr(5), sockd.route(5)

AUTHOR

       Ying-Da Lee, yingda@esd.sgi.com or yingda@best.com

								    May 6, 1996 						   DUMP_SOCKDFR(8)