Vrrp/CARP/UCarp Problems
Ross Draper
ross at virtualgeek.net
Wed Mar 28 21:29:42 UTC 2007
> Quoting Ross Draper <ross at virtualgeek.net> (from Sun, 25 Mar 2007
> 19:23:50 +0100 (BST)):
>
>> Freevrrpd - Pros: Mac address changing removes some of the arp timeout
>> issues/gratuitus arp problems and it supports start/stop scripts
>> Cons: I'm finding that upon rebooting the backup unit it correctly
>> starts
>> as a backup, then three seconds later syslogs that it is the master and
>> changes its mac address accordingly. although a sniff of the network
>> traffic indicates it is sending the right advertisements, it never goes
>> into backup mode again.
>
> That's not normal, can you post your config?
>
> Bye,
> Alexander.
>
> --
> Economics is extremely useful as a form of employment for economists.
> -- John Kenneth Galbraith
>
> http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7
> http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
>
Hi Alexander
Thanks for your reply.
My config is:
Master
[VRID]
serverid = 5
interface = em0
useVMAC = yes
sendgratuitousarp = yes
priority = 255
addr=10.73.122.205/24, 10.2.200.1/32
masterscript = /usr/local/etc/master.sh
backupscript = /usr/local/etc/backup.sh
Backup
[VRID]
serverid = 5
interface = em0
useVMAC = yes
sendgratuitousarp = yes
priority = 250
addr=10.73.122.205/24, 10.2.200.1/32
masterscript = /usr/local/etc/master.sh
backupscript = /usr/local/etc/backup.sh
I posted this message to the freebsd-net group as well(actually by
mistake, but thats another story), and as part of my investigations from
replies received there, I was starting to believe that my problem was
related to different types of network card/drivers.
However, I have now built two boxes on identical hardware as well as a
mixture of xl/em and things work fine. I am now starting to believe that
the problems I experienced in freevrrpd may be as a result of having carp
compiled into my kernel. The two new machines I have now built are stock
6.2, with no carp in the kernel. (Note, the original machines had no carp
interfaces defined on them when using freevrrpd)
I cant confirm fully until I am back in the office, but I will post back
as soon as I am able.
Kind Regards
Ross
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