Hi, I have a carp master and backup on a pair of one-armed Rapsberry Pi 4B devices (router1 and router2) and when I ssh to the backup using the carp IP as my gateway, it repeatedly throws me out after a few seconds with the message:
My laptop's network config: ----------------------------------- IP: 192.168.4.109 Subnet mask: 255.255.255.0 Gateway: 192.168.4.1 Both RPI4s are connected to switchports with packets tagged for VLANs 2,3,4,6 and the network devices don't have IP configuration - everything is configured on VLAN interfaces with the single parent interface bse0. CARP failover actually works as expected, but as mentioned I am unable to maintain an ssh session with the backup "router2" while using the carp IPs as my network gateway. Network switch is a Zyxel GS1200-8 with firmware V2.00(ABME.0)C0. Loop prevention is enabled and I have also tested with it disabled to no avail. What happens: ----------------------------------- $ ssh 10.0.1.101 Last login: Sun May 23 17:44:21 2021 from 10.0.1.100 OpenBSD 6.9 (GENERIC.MP) #1134: Sun Apr 18 01:53:35 MDT 2021 router2# router2# client_loop: send disconnect: Broken pipe Router 1 network config: ----------------------------------- router1# cat hostname.bse0 up router1# cat hostname.vlan2 172.16.1.6/24 172.16.1.255 parent bse0 vnetid 2 group PFSYNC description "private segment with router2" router1# cat hostname.vlan3 10.0.1.100/24 10.0.1.255 parent bse0 vnetid 3 group INTERNAL description "router1 internal interface" router1# cat hostname.vlan4 192.168.1.252/24 192.168.1.255 parent bse0 vnetid 4 group OLDSHIT description "unmigrated shit" router1# cat hostname.vlan6 192.168.4.2/24 192.168.4.255 parent bse0 vnetid 6 group TCWIFI description "Time-Capsule Wifi" router1# cat hostname.carp4 192.168.1.1/24 carpdev vlan4 pass fukdissh1t vhid 41 advskew 1 description "TC-WIFI gateway" router1# cat hostname.carp6 192.168.4.1/24 carpdev vlan6 pass fukdissh1t vhid 61 advskew 1 description "TC-WIFI gateway" Router2 network config: ----------------------------------- router2# cat hostname.bse0 up router2# cat hostname.vlan2 172.16.1.7/24 172.16.1.255 parent bse0 vnetid 2 group PFSYNC description "private segment with router1" router2# cat hostname.vlan3 10.0.1.101/24 10.0.1.255 parent bse0 vnetid 3 group INTERNAL description "router2 internal interface" router2# cat hostname.vlan4 192.168.1.253/24 192.168.1.255 parent bse0 vnetid 4 group OLDSHIT description "unmigrated shit" router2# cat hostname.vlan6 192.168.4.3/24 192.168.4.255 parent bse0 vnetid 6 group TCWIFI description "Time-Capsule Wifi" router2# cat hostname.carp4 192.168.1.1/24 carpdev vlan4 pass fukdissh1t vhid 41 advskew 128 description "TC-WIFI gateway" router2# cat hostname.carp6 192.168.4.1/24 carpdev vlan6 pass fukdissh1t vhid 61 advskew 128 description "TC-WIFI gateway" Any tips much appreciated. -mike
