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Feature #2886

multiple ips per carp vhid group

Added by Alexander Swen over 7 years ago. Updated over 7 years ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
Category:
CARP
Target version:
-
Start date:
03/15/2013
Due date:
% Done:

0%

Estimated time:

Description

since I can't find very detailed information on how carp works (under the hood i mean) i've read some documentation on vrrp as those protocols have a lot in common. however, it is stated in vrrp draft (http://tools.ietf.org/html/draft-ietf-vrrp-spec-v2-10#section-5.1) that one can have multiple ip's in a vrrp vhid group. And, when I tcpdump i see that currently carp sets number of ip's to 7 and then adds 7 ip's to the vrrp packet. I cannot find any relation between the carp'ed ip and the addresses that are in the packet related to that vhid btw.
So, we would like to have the functionality of pfsense's (freebsd maybe even?) carp implementation extended to support multiple ip's per carp vhid. (vrrp seems to support only up to 20 ip's btw, i guess due to ethernet packetsize limit?)

History

#1 Updated by Jim Pingle over 7 years ago

  • Status changed from New to Rejected

This isn't relevant to how we use CARP.
You can add IP alias VIPs on top of a single CARP VIP to have as many IPs as you want on a single VHID in pfSense 2.x.

#2 Updated by Alexander Swen over 7 years ago

You can add IP alias VIPs on top of a single CARP VIP to have as many IPs as you want on a single VHID in pfSense 2.x.

Right....
I knew that ;-)
no I did not. what a super simple solution for this 'problem'. I had no idea. Jim P., thanks for your very quick reply.

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