Date: Mon, 13 Oct 2008 12:56:45 -0700 From: "Mike Sweetser - Adhost" <mikesw@adhost.com> To: <freebsd-questions@freebsd.org> Subject: Oddities with VLAN/CARP Interfaces on Primary/Failover Setup Message-ID: <17838240D9A5544AAA5FF95F8D52031604D8C217@ad-exh01.adhost.lan>
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Hello: We currently have a primary/failover setup for two FreeBSD 6.3 servers running PF, and we're running into odd issues when setting up multiple subnets on a single VLAN and CARP interface. We have issues with them coming up properly, and even worse, having both servers believe they are master.=20 Here's a snippet of one of the VLANs and CARP interfaces in question: ifconfig_vlan10=3D"inet 10.142.255.252 netmask 255.255.0.0 vlan 10 = vlandev em2" =20 ifconfig_vlan10_alias0=3D"inet 10.210.0.2 netmask 255.255.0.0" ifconfig_carp10=3D"inet 10.142.255.254 netmask 255.255.0.0 vhid 10 = advskew 0 pass testpass" =20 ifconfig_carp10_alias0=3D"inet 10.210.0.1 netmask 255.255.0.0" The main difference between this and our other VLAN/CARP interfaces is that because it's separate subnets, the aliases here are set up with /16 netmasks, while the regular aliases on the others are set up with /32s. Is this correct, or should these also be set as /32s? Thanks, Mike Sweetser -------------------------- Mike Sweetser | Systems Administrator Adhost Internet 140 Fourth Avenue North, Suite 360, Seattle, Washington 98109 USA E mikesw@adhost.com W adhost.com Our brand new Adhost West data center is open - contact us for a tour at 1-888-234-6781 (ADHOST-1)
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