Configuring LVS TUN with new arp_tables_jf

Nigel Hamilton nigel at turbo10.com
Tue Aug 9 12:45:20 BST 2005


Hi Joseph,

 	Thanks for your speedy response.

>
> I haven't used arp_tables, but lo is not involved with LVS-Tun. You should do 
> everything (whatever that is) on
> the tunnel device
5B>
>> DEVICE=lo:0
>> IPADDR=192.168.6.240
>
> why is this x.x.6.x
>                ^
>

 	I think this is the VIP in the ultramonkey example?

>> NETMASK=255.255.255.255
>> NETWORK=192.168.0.0
>> BROADCAST=192.168.0.255
>
> and this x.x.0.x?
>             ^
>

 	This is in the ultramonkey example too?


>> ONBOOT=yes
>> NAME=loopback
>> 
>> 	But now I'm stuck. Lets assume the IP of my real server is 
>> 67.45.23.2.
>> 
>> 	* what address should I use for NETWORK? My real servers are on 
>> different networks? My guess is: 67.45.0.0.
>
> VIPs on local devices (lo, tun) are /32 networks so if the VIP is x.x.x.52, 
> then the broadcast is x.x.x.52 and the netmask is 255.255.255.255
>

 	OK. So I should _not_ set up a "lo" device. OK. So instead I'm 
going to set up a tunl0 interface instead with these parameters (i.e., 
/etc/sysconfig/network-scripts/ifcfg-tunl0). Assuming a VIP of 
66.98.227.143 and a RIP of 66.98.186.73. Does this look sane?

MTU=1480
NETMASK=255.255.255.255
BOOTPROTO=none
BROADCAST=66.98.1.255
IPADDR=66.98.227.143
NETWORK=66.98.227.143
ONBOOT=yes
DEVICE=tunl0


NIge



More information about the lvs-users mailing list