OPNsense Forum

English Forums => General Discussion => Topic started by: phoenix on October 13, 2017, 09:56:28 am

Title: Single WAN: CARP/HA possible?
Post by: phoenix on October 13, 2017, 09:56:28 am
I only have a single WAN connection, is it possible to configure an HA solution with this set-up? I have seen an article about this using pfsense on a French blog here: https://voiprovider.wordpress.com/2017/03/26/la-ha-avec-pfsense-et-1-seule-ip-wan/  would this work in OPNsense?
Title: Re: Single WAN: CARP/HA possible?
Post by: mimugmail on October 13, 2017, 10:26:07 am
Is it a static IP or dialup?
Title: Re: Single WAN: CARP/HA possible?
Post by: phoenix on October 13, 2017, 10:44:40 am
Is it a static IP or dialup?
Sorry, I forgot to mention that - it's a static FTTH connection.
Title: Re: Single WAN: CARP/HA possible?
Post by: mimugmail on October 13, 2017, 12:34:42 pm
Try to set the WAN IP address to something like 10.255.255.1 and 2, then create a CARP VIP with the real IP, add a gateway with the real gateway address and check "Far gateway".

Could/Should work.
Title: Re: Single WAN: CARP/HA possible?
Post by: phoenix on October 13, 2017, 12:57:30 pm
I'll give that a go in a short while, I'm in the middle of rewiring part of the house for my LAN. :) Do I need a VLAN for the inbound WAN connection through a switch and then two (VLAN) connections to both of the OPNsense servers?
Title: Re: Single WAN: CARP/HA possible?
Post by: finish06 on May 29, 2018, 07:39:08 pm
Did this work?
Title: Re: Single WAN: CARP/HA possible?
Post by: iMx on January 29, 2019, 04:56:48 pm
Works for me - as suggested here.