pf+carp with one wan address

[devil_devil]

Hi guys, I would like to ask someone made a carp is a real address. For all circuits are 2 address and enjoys virtual 3, and I have only one, but I want to make backup router.
Example

---- WAN/Internet ------------
| |
| em2 | em2
+-----+ +-----+
fw1 -em1------em1- fw2
+-----+ +-----+
|em0 em0 |
| |
---+-------Shared LAN-------+---



fw1 em0: 172.16.0.1--------the same address
fw1 em1: 10.10.10.1
fw1 em2: 192.0.2.1

fw2 em0: 172.16.0.1 -----the same address
fw2 em1: 10.10.10.2
fw2 em2: 192.0.2.2

* LAN shared IP: 172.16.0.100

Thanks in advance :P

[liamjfoy]

Hi guys, I would like to ask someone made a carp is a real address. For all circuits are 2 address and enjoys virtual 3, and I have only one, but I want to make backup router.
Example

---- WAN/Internet ------------
| |
| em2 | em2
+-----+ +-----+
fw1 -em1------em1- fw2
+-----+ +-----+
|em0 em0 |
| |
---+-------Shared LAN-------+---



fw1 em0: 172.16.0.1--------the same address
fw1 em1: 10.10.10.1
fw1 em2: 192.0.2.1

fw2 em0: 172.16.0.1 -----the same address
fw2 em1: 10.10.10.2
fw2 em2: 192.0.2.2

* LAN shared IP: 172.16.0.100

Thanks in advance :P

I'd probably be able to help you. However, I have absolutely no idea what you're talking about. Can you try and explain what you're asking more carefully?:)

[vvg]

I don`t think in FreeBSD we have carp over device (like OpenBSD),
PF version is old for us. I have similar situation.
I found some info and some kind of patch but not works for me.
I think you should try OpenBSD and read their carp based on interface. Google help you to find examples.

[vvg]

I forgot, the idea is to use carpdev - same as we use vlandev.
OpenBSD PF+CARP works. The only not so complete information about it i found here:

http://www.mail-archive.com/freebsd-pf@freebsd.org/msg02808.html

so ...wish you luck