Can I add routes to rt_tables by hand with the vi editor? If I add a route to that file, it will be there if I reboot the box? I am sure there are stupid questions but I can''t find the answer into the papers I have here. Luis Miguel Cruz Miranda. CCNA - Systems Administrator _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Luis, : Can I add routes to rt_tables by hand with the vi editor? /etc/iproute2/rt_tables contains a mapping of human names to routing table numbers. I call them table identifiers to table ids. This file does not contain routes. : If I add a route to that file, it will be there if I reboot the box? If you wish to add static routes to the system at boot, you should be able to use the system network initialization scripts and config files (e.g., redhat has a file /etc/sysconfig/static-routes). Otherwise, you should write your own startup script or modify /etc/rc.d/rc.local to include the routes you wish to add. If you are using network address translation, you may find my NAT SysV init scripts convenient: http://plorf.net/linux-ip/html/scripts/nat http://plorf.net/linux-ip/html/scripts/static-nat Does that answer your question? -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
>/etc/iproute2/rt_tables contains a mapping of human names to routing table >numbers. I call them table identifiers to table ids. This file does not >contain routes.So, if I understand all correctly, I don''t need that file to use multiple route tables, do I?> : If I add a route to that file, it will be there if I reboot the box? > >If you wish to add static routes to the system at boot, you should be able >to use the system network initialization scripts and config files (e.g., >redhat has a file /etc/sysconfig/static-routes).I found a solution here: http://www.samag.com/documents/s=1824/sam0201h/0201h.htm>Otherwise, you should write your own startup script or modify >/etc/rc.d/rc.local to include the routes you wish to add. > >If you are using network address translation, you may find my NAT SysV >init scripts convenient: > > http://plorf.net/linux-ip/html/scripts/nat > http://plorf.net/linux-ip/html/scripts/static-nat > >Does that answer your question? > >-Martin > >-- >Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.comLuis Miguel Cruz Miranda. CCNA - Systems Administrator _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
: >/etc/iproute2/rt_tables contains a mapping of human names to routing table : >numbers. I call them table identifiers to table ids. This file does not : >contain routes. : So, if I understand all correctly, I don''t need that file to use multiple : route tables, do I? You are correct. It simply maps names to numbers so that you can use something like this if you want: # ip route add default via 10.0.0.1 table dsl-link # ip route add default via 10.0.0.2 table t1-link Where the rt_tables file contains: 1 dsl-link 2 t1-link If you do not have the file /etc/iproute2/rt_tables, you can use the following syntax . # ip route add default via 10.0.0.1 table 1 # ip route add default via 10.0.0.2 table 2 : I found a solution here: : http://www.samag.com/documents/s=1824/sam0201h/0201h.htm I''ve not seen this before and will have to read this article. Thanks for the link. I do have some general documentation on the use of "ip route" and "ip rule" in the appendices of my documentation available here: http://plorf.net/linux-ip/ Let me know if you find any flaws, areas for improvement, or missing content. -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Luis Miguel Cruz Miranda
2002-Nov-28 16:05 UTC
sysconfig changes and problems with ip route add
I edited the file /etc/sysconfig/network-scripts/ifup-routes, and I add...
# Add any advanced routes
grep "^advanced" /etc/sysconfig/static-routes |
while read ignore dev args; do
if [ "$dev" = "$1" ]; then
/sbin/ip route add $args
fi
done
Then, I went to /etc/sysconfig and I created a file called static-routes
with this content:
advanced eth1 194.149.216.1/32 dev vlan2 table 21
advanced eth1 194.149.216.2/32 dev vlan2 table 21
advanced eth1 194.149.216.3/32 dev vlan2 table 21
advanced eth1 0.0.0.0/0 via 10.1.0.254 table 20
Why table 21 is not loaded at boot?
:(
At 17:05 27/11/2002, Martin A. Brown wrote:> : >/etc/iproute2/rt_tables contains a mapping of human names to routing
> table
> : >numbers. I call them table identifiers to table ids. This file
does not
> : >contain routes.
> : So, if I understand all correctly, I don''t need that file to
use multiple
> : route tables, do I?
>
>You are correct. It simply maps names to numbers so that you can use
>something like this if you want:
>
># ip route add default via 10.0.0.1 table dsl-link
># ip route add default via 10.0.0.2 table t1-link
>
>Where the rt_tables file contains:
>
>1 dsl-link
>2 t1-link
>
>If you do not have the file /etc/iproute2/rt_tables, you can use the
>following syntax .
>
># ip route add default via 10.0.0.1 table 1
># ip route add default via 10.0.0.2 table 2
>
> : I found a solution here:
> : http://www.samag.com/documents/s=1824/sam0201h/0201h.htm
>
>I''ve not seen this before and will have to read this article.
Thanks for
>the link.
>
>I do have some general documentation on the use of "ip route" and
"ip
>rule" in the appendices of my documentation available here:
>
> http://plorf.net/linux-ip/
>
>Let me know if you find any flaws, areas for improvement, or missing
>content.
>
>-Martin
>
>--
>Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com
Luis Miguel Cruz Miranda.
CCNA - Systems Administrator
---------------------------------------------------------------
B2B INTEGRAL, S.A.
Pol. Ind. de Asipo
C/A - Parcela 86-C
33.428 - CAYES - LLANERA
ASTURIAS (ESPAÑA/SPAIN)
---------------------------------------------------------------
Tel: +34 985 980 804 ---- Fax: +34 985 980 794
---------------------------------------------------------------
WEB: http://www.b2bi.es/
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Martin A. Brown
2002-Nov-28 22:30 UTC
Re: sysconfig changes and problems with ip route add
Luis, <speculation mode on> : Then, I went to /etc/sysconfig and I created a file called static-routes : with this content: : advanced eth1 194.149.216.1/32 dev vlan2 table 21 : advanced eth1 194.149.216.2/32 dev vlan2 table 21 : advanced eth1 194.149.216.3/32 dev vlan2 table 21 : advanced eth1 0.0.0.0/0 via 10.1.0.254 table 20 : : Why table 21 is not loaded at boot? : :( is the vlan2 device up when these networking scripts are called? If I had to guess, I''d say they are not.....hard to add a route through a device that isn''t there! <speculation mode off> -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
table 21 is defined in rt_tables ?? .. it resides in dir /etc/iproute2 else might in your build directory Martin A. Brown wrote:> Luis, > > <speculation mode on> > > : Then, I went to /etc/sysconfig and I created a file called static-routes > : with this content: > : advanced eth1 194.149.216.1/32 dev vlan2 table 21 > : advanced eth1 194.149.216.2/32 dev vlan2 table 21 > : advanced eth1 194.149.216.3/32 dev vlan2 table 21 > : advanced eth1 0.0.0.0/0 via 10.1.0.254 table 20 > : > : Why table 21 is not loaded at boot? > : :( > > is the vlan2 device up when these networking scripts are called? If I > had to guess, I''d say they are not.....hard to add a route through a > device that isn''t there! > > <speculation mode off> > > -Martin >_______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Luis Miguel Cruz Miranda
2002-Nov-29 15:22 UTC
Re: sysconfig changes and problems with ip route add
At 02:44 29/11/2002, Arindam Haldar wrote:>table 21 is defined in rt_tables ?? .. it resides in dir /etc/iproute2 >else might in your build directoryAs I know it is not neccesary>Martin A. Brown wrote: >>Luis, >><speculation mode on> >> : Then, I went to /etc/sysconfig and I created a file called >> static-routes : with this content: >> : advanced eth1 194.149.216.1/32 dev vlan2 table 21 >> : advanced eth1 194.149.216.2/32 dev vlan2 table 21 >> : advanced eth1 194.149.216.3/32 dev vlan2 table 21 >> : advanced eth1 0.0.0.0/0 via 10.1.0.254 table 20 >> : >> : Why table 21 is not loaded at boot? >> : :( >>is the vlan2 device up when these networking scripts are called? If I >>had to guess, I''d say they are not.....hard to add a route through a >>device that isn''t there! >><speculation mode off> >>-Martin > > > >_______________________________________________ >LARTC mailing list / LARTC@mailman.ds9a.nl >http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/Luis Miguel Cruz Miranda. CCNA - Systems Administrator --------------------------------------------------------------- B2B INTEGRAL, S.A. Pol. Ind. de Asipo C/A - Parcela 86-C 33.428 - CAYES - LLANERA ASTURIAS (ESPAÑA/SPAIN) --------------------------------------------------------------- Tel: +34 985 980 804 ---- Fax: +34 985 980 794 --------------------------------------------------------------- WEB: http://www.b2bi.es/ _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/