Hi,
You can use the routes table to setup the routes.
1. First define a route in the routes table. Make net=0.0.0.0 for default
gateway.
2. Add the route name for the node attribute.
chdef <node> routenames="blah"
3. Run command to add the route to the node
makeroutes <node>
4. If you want the routes be automatically setup during node deployment,
add setroute script name to the postscripts.postbootscripts for the node.
Hope it works for you.
Ling
Ling Gao
Poughkeepsie Unix Development Lab
IBM Systems and Technology Group
Internal: T/L 293-5692
External: [email protected], 845-433-5692
"I never worry about the future. It comes soon enough." --- Albert
Einstein
From: Kilian Cavalotti <[email protected]>
To: xCAT Users Mailing list <[email protected]>
Date: 02/25/2015 04:48 PM
Subject: [xcat-user] Setting a default gateway in a network without
DHCP
Hi all,
I'm trying to define a default gateway which is not in the deployment
network. It's on an external network where xCAT doesn't provide DHCP
services (use case is deploying login nodes directly connected to an
external network). Is that possible?
That node would be deployed through eth1 (on the "internal" network),
but its default gateway should be on its eth0 interface (on the
"public" network). I tried a bunch of things, but I can only end up
with the default gateway defined on the "internal" net.
I have:
# tabdump networks
#netname,net,mask,mgtifname,gateway,dhcpserver,tftpserver,nameservers,ntpservers,logservers,dynamicrange,staticrange,staticrangeincrement,nodehostname,ddnsdomain,vlanid,domain,comments,disable
"internal","10.210.8.0","255.255.255.128","eth1","10.210.8.1","10.210.8.1",,"10.210.8.1",,,"10.210.8.110-10.210.8.119",,,,,"","internal",,
"public","xxx.xxx.xxx.xxx","255.255.255.128","eth0","yyy.yyy.yyy.yyy",,,"8.8.8.8",,,,,,,,,"mydomain.com",,
# lsdef login | egrep "eth0|eth1|public|internal|nic"
installnic=eth1
kcmdline=quiet repo=http://!myipfn!:80/install/centos6.6/x86_64
ks=http://!myipfn!:80/install/autoinst/login ksdevice=eth1 cmdline
console=tty0 console=ttyS1,115200n8r
nicaliases.eth0=login.mydomain.com
nicips.eth0=xxx.xxx.xxx.xxx
nicnetworks.eth1=internal
nicnetworks.eth0=public
primarynic=eth1
postscripts=syslog,remoteshell,syncfiles,confignics -sr
The result is:
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
10.210.8.0 0.0.0.0 255.255.255.128 U 0 0 0
eth1
xxx.xxx.xxx.xxx 0.0.0.0 255.255.255.128 U 0 0 0
eth0
0.0.0.0 10.210.8.1 0.0.0.0 UG 0 0 0
eth1
Since there's no mention of gateway anywhere in /etc/sysconfig, I
assume the default gateway comes from DHCP.
So,my question is: is there a way to specify the default gateway?
Thanks!
--
Kilian
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news, videos, case studies, tutorials and more. Take a look and join the
conversation now. http://goparallel.sourceforge.net/
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