On 29 Nov 2012, at 21:07, dweimer <dwei...@dweimer.net> wrote:
> On 2012-11-29 12:53, Fleuriot Damien wrote: >> On Nov 29, 2012, at 6:43 PM, dweimer <dwei...@dweimer.net> wrote: >> >>> I was trying to setup a test of CARP on two virtual machines running in >>> VirtualBox 4.2.4r81684 I am not sure if I have something wrong with my CARP >>> configuration or if VirtualBox just doesn't work right with it. I can only >>> ping the CARP interface IP address from the machine listed as MASTER, if I >>> do an ifconfig carp0 down on the MASTER the other machine correctly >>> switches form BACKUP to MASTER and then I can ping the interface from it >>> but not from the Original system. >>> >>> The VirtualBox systems are both using bridged networking, and the host >>> cannot ping the carp0 IP address but can ping the interface IP address. >>> >>> Before I go through more trouble shooting, does anyone know if CARP doesn't >>> work with VirtualBox? >>> >>> carp configuration >>> Machine1: >>> ifconfig_em0="UP" >>> ifconfig_em0_name="LAN" >>> ipv4_addrs_LAN="10.20.190.201/16" >>> defaultrouter="10.20.111.2" >>> cloned_interfaces="carp0" >>> ifconfig_carp0="vhid 1 advskew 100 pass ReduntantCarpTest 10.20.190.203/16 >>> >>> ifconfig carp0: >>> carp0 flags=49<UP,LOOPBACK,RUNNING> metric 0 mtu 1500 >>> inet 10.20.190.203 netmask 0xffff0000 >>> nd6 options=29<PREFORMNUD,IFDISABLED,AUTO_LINKLOCAL> >>> carp: MASTER vhid 1 advbase 1 advskew 100 >>> >>> >>> Machine2: >>> ifconfig_em0="UP" >>> ifconfig_em0_name="LAN" >>> ipv4_addrs_LAN="10.20.190.202/16" >>> defaultrouter="10.20.111.2" >>> cloned_interfaces="carp0" >>> ifconfig_carp0="vhid 1 pass ReduntantCarpTest 10.20.190.203/16 >>> >>> ifconfig carp0: >>> carp0 flags=49<UP,LOOPBACK,RUNNING> metric 0 mtu 1500 >>> inet 10.20.190.203 netmask 0xffff0000 >>> nd6 options=29<PREFORMNUD,IFDISABLED,AUTO_LINKLOCAL> >>> carp: BACKUP vhid 1 advbase 1 advskew 0 >>> >>> FreeBSD version is 9.1RC3 on both test machines. >> >> >> >> We're using FreeBSD and CARP in virtualized environments at work, >> albeit not on VirtualBox but on Proxmox/KVM. >> >> First, I would advise replacing 10.20.190.203/16 with 10.20.190.203/32 >> >> >> I notice your carp0 is MASTER on machine1 with an advskew of 100 vs >> machine 2 advskew 0, same advbase. >> Confirm this is *after* you've set carp0 down on machine2. >> >> If both carps are up and machine1 with advskew 100 beats machine2 >> with advskew 0, you have an additional problem. >> >> >> See if you have any more luck with the /32 address on carp0 anyway. > > The documentation shows the mask matching that of the interface: > hostname="hostb.example.org" > ifconfig_fxp0="inet 192.168.1.4 netmask 255.255.255.0" > cloned_interfaces="carp0" > ifconfig_carp0="vhid 2 pass testpass 192.168.1.51/24" > > This is consistent with the man page for CARP on the system as well. > Regardless I tried with the /32 and had the same result as I did with the > /16. I had done various UP/DOWN on interfaces so the current MASTER was just > the last one to have not been DOWN. I think I might just copy these VMs to > my VMWARE Workstation 9 install on my home PC after work tonight and see if > the problem persists. > > -- > Thanks, > Dean E. Weimer > http://www.dweimer.net/ You wouldn't be the famous Weimer from whom weidu originates would you ? Anyway back on topic, we've had problems here with masks shorter than /32 on carp interaces on 8.x so we changed them all to /32 and they work like a charm. Might you have the time to test on 8.3 with virtualbox ? I'll see if I can install 2 of these tomorrow during my lunch break if that's not possible for you, and reproduce your test case. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
