CARP with /30 ?

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CARP with /30 ?

Axel Rau
Hi all,

does a CARP setup with 2 firewll boxes with an upstream /30 transfer net i feasible?
E.g.

5.6.7.232/30

5.6.7.232 if box1
5.6.7.233 upstream router
5.6.7.234 if box2
5.6.7.235 if CARP

Quick answer would be very helpfull.

Thanks, Axel
---
PGP-Key: CDE74120  ☀  computing @ chaos claudius


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Re: CARP with /30 ?

Alarig Le Lay
On 24/10/2019 10:41, Axel Rau wrote:

> Hi all,
>
> does a CARP setup with 2 firewll boxes with an upstream /30 transfer net i feasible?
> E.g.
>
> 5.6.7.232/30
>
> 5.6.7.232 if box1
> 5.6.7.233 upstream router
> 5.6.7.234 if box2
> 5.6.7.235 if CARP
>
> Quick answer would be very helpfull.
>
> Thanks, Axel
> ---
> PGP-Key: CDE74120  ☀  computing @ chaos claudius
>

You can’t use 4 addresses on a /30, 5.6.7.232 is the net and 235 the
broadcast.
Anyway, there is use to put anything but a /32 on a VIP.

Also, why do you want CARP with an upstream? Just do BGP or ECMP.

--
Alarig