Date: Tue, 18 Feb 2020 12:19:55 -0800 From: Doug Hardie <bc979@lafn.org> To: FreeBSD <freebsd-questions@freebsd.org> Subject: Switching to backup Network Message-ID: <64F39D12-E061-4726-B58E-943D61963944@mail.sermon-archive.info>
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One of my clients has a machine running 12.1 that is connected via two = different NICs to two different WANs. He has drops from 2 different = ISPs to provide redundancy. I have configured each of the DNS names with = both IP addresses so that web access will switch over to the backup when = the primary is down. Setfib and pf are used to make that work. That = works fine (although there is a DNS timeout involved). The problem is = that all the servers on the machine talk out via the primary IP address. = While web access continues, the server initiated functions fail because = the next hop is down. Is there a way to switch everything over to the = backup network in this case? I don't find anything that enables = automatic changes to the default network. Also, when the backup network goes down, the default network entry for = setfib 1 route is deleted. I have to manually enter that when it comes = backup. I am initially setting that in /etc/rc.local. Is there a way = to make it either remain, or be restored? -- Doug
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