carp

I noticed that on my CARP hosts (three pairs, six total) ssh to the local address of the current master took a long time. Turns out that it was timing out trying IPv6 and falling back on IPv4. ssh -4 always works right away. While debugging I realised that the CARP host saw neighbor...

Hi, My setup is like following. server1 = primary server setup with carp, it is running the dnsmasq and it is also the gateway for my local network 192.168.1.0/24 server2= secondary server setup with carp, it is also running the dnsmasq (/var/db/dnsmasq.leases is copied from server1) and it is...

Hello there, I'm new in this forum, sorry if my message is not in the correct category. I'm using FreeBSD 14.0 with pfSense plus 23.05. I have 2 nodes (2 NetGate 7100 routers) in redundancy with CARP VIPs on several interfaces. One node is master called "RT1" and the other one in backup...

Hello, everyone! I have strange problem when using CARP address as source ip. FreeBSD 13.2-RELEASE configured with primary ip: 10.10.0.16 and CARP ip: 10.10.0.26 Everything works as expected, packets incoming to carp address and outgoing from primary address with no problem. But when i try...

Hello, i want to build a Router HA Cluster with two hardware servers. Each Node should have one IP per subnet and the default Gateway IP of the subnet would be a CARP IP bound to the active node. So far this seems to be straight forward and would work great for static routing. The router...

So, I have been experimenting with methods for providing "clustering" on ZFS for a while now and I recently purchased a Supermicro 6036ST-6L Shared Storage Bus system. It's provides an interesting opportunity as both nodes in the host can share the storage via SAS, and the SAS topology seems...

Hi, I would like to use CARP, but noticed that when CARP is configured on an interface, promiscuous mode is enabled. I had to check the source and sure, these lines are included: if ((error = ifpromisc(ifp0, 1))) return (error); I'm not that eager to have promiscuous mode enabled for...

In older FreeBSD versions, a carp interface could be created using ifconfig carp create And It seems to be working within a GIF tunnel, I found some rc scripts examples here: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=132107 In the latest stable FreeBSD 13 at the moment of writing...

I am testing CARP in two dedicated server from Hetzner having both servers atached to a vSwitch with IPv4 addresses, this is the what I have in /etc/rc.conf: cloned_interfaces="vlan0" create_args_vlan0="vlan 4000 vlandev em0 mtu 1400 fib 1" ifconfig_vlan0="ether random" I need a VLAN in order...

Greetings everybody, I am no freebsd expert. I have linux and freebsd experience. I would like to setup a HA mail, dns and storage server for SOHO environment. So, there will be just 2 small servers with few spin disks and ethernet nics. Regarding storage there is HAST and uCARP...

Hi, I'm looking at setting up a storage area network for ESXi/vSphere, and I've been looking at all my options. One thing I came across recently while looking at HAST was that ctl itself has its own HA functionality. From ctl: +o Support for multiple ports, initiators, targets and...

Hi everyone, Can i config only CARP without any firewall things Pfsense for Example? I searched in youtube about how to config CARP, but all the results are CARP/pfsense !!

Hello, I'm looking to use active-active loadbalancing with FreeBSD. Until FreeBSD 10 this could be done with CARP using the net.inet.carp.arpbalance = 1. After some researches, it appears that FreeBSD CARP doesn't support the arpbalance option anymore. This has been removed 8 years ago in...

To pass traffic from a remote host 55.55.55.55 to a service behind the NAT on the box with IP 77.77.77.77 I have a standard set of rules: 00812 nat 82 tcp from 55.55.55.55 to 77.77.77.77 48888 in via igb0 00822 allow tcp from 55.55.55.55 to 10.1.1.8 48888 in via igb0 00832 nat 82 tcp from...

Hello, Recently I have migrated 2 firewalls in CARP setup from OpenBSD to FreeBSD 12.1-RELEASE on vmware VMs (ESXi 6.5) with E1000 interfaces. Both hosts are with 10Gbit interfaces connected to on single 10Gbit switch. The CARP setup is working fine during the day but during the night I got...

Hello to all! Hope you are all good! My query is that I am trying to implement automatic failover of 2 FreeBSD firewalls (acting as edge gateway), using CARP, in a cloud based environment and the problem is that the infrastructure does not support multicast traffic, or any other pre-reqs for...

Hello folks, I have the following situation: +-----------+ 172.31.255.6/24 | | 192.168.100.1/24 +--------+ silver1 +---------+...

Hello folks, I have two machines (exact same hardware) that I'd like to use as a gateway/router for LAN clients to access the internet. I am using CARP for fail-over which is already working - therefore, let's refer to the two machines as "the gateway" from here on. Here's a drawing for sanity...

Hello folks, I have two identical baremetal machines in a datacenter. Both machines have two NICs each. Both interfaces have static public IPv4 addresses. The servers are essentially connected "directly to the internet". Both machines run FreeBSD 11.1 64-bit. The second machine is purely there...

I am currently using exactly the same approach with CARP as described in a prior posting to the stable mailing list, https://groups.google.com/forum/#!topic/mailing.freebsd.stable/-NiHmBWMulY . I have noticed in my router lab that the MASTER goes into BACKUP mode briefly whenever a new alias...