On Dec 4, 2012, at 8:17 PM, dweimer <dwei...@dweimer.net> wrote: > On 2012-12-01 03:14, Damien Fleuriot wrote: >> On 30 November 2012 20:44, dweimer <dwei...@dweimer.net> wrote: >>> On 2012-11-29 14:07, dweimer 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. >>> >>> >>> The behavior definitely changed going from VirtualBox to VMWare, the only >>> change in my configuration was the IP addresses to match the home network. >>> However now I can talk to the carp interface form other machines, but they >>> receive two response one from each of the test systems. TCPDUMP shows that >>> they are each seeing the others broadcasts, but for some reason they are >>> both running as MASTER. If you run a DOWN/UP on the interface, it briefly >>> shows as BACKUP before switching to MASTER. I tried with both /24 subnet of >>> my home network, and setting the carp0 interface to /32, both behaved the >>> same. Any one have any other ideas, as to whether this comes down to a >>> Virtual Network Issue, or a setup issue on my part. >>> >> >> >> Well, it definitely works here for us on Proxmox/KVM. >> >> When you tcpdump on your either host, do you see the CARP >> advertisements from the other ? >> >> >> FInd below the advertisements as seen from our CARP backup firewall: >> $ sudo tcpdump -ni vlan14 vrrp >> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode >> listening on vlan14, link-type EN10MB (Ethernet), capture size 96 bytes >> 10:11:09.084568 IP 195.158.240.[snip] > 224.0.0.18: VRRPv2, >> Advertisement, vrid 114, prio 50, authtype none, intvl 1s, length 36 >> 10:11:10.282826 IP 195.158.240.[snip] > 224.0.0.18: VRRPv2, >> Advertisement, vrid 114, prio 50, authtype none, intvl 1s, length 36 >> 10:11:11.481075 IP 195.158.240.[snip] > 224.0.0.18: VRRPv2, >> Advertisement, vrid 114, prio 50, authtype none, intvl 1s, length 36 > > Proabbly should have been more clear early when I mentioned I could see the > others broadcasts, this is what I menat, yes they do see the others > advertisements. It most definitely was virtual network related, found some > information on the pfSense wiki that directed me to the advanced settings on > the ethernet adapters within the VirtualBox network settings on the virtual > machines. Promiscuous mode was set to Deny, change this to Enable All, > problem solved on VirtualBox, CARP is now working as intended. Still haven't > figured out a fix for the issue I discovered in VMware, found a lot of > things about changing adapters permissions on Linux hosts to allow > promiscuous mode, and suspect it is a permissions issue with the Windows 7 > host, but I haven't found out how to fix it yet. However I now know my > configuration works and its not a FreeBSD issue. > > -- > Thanks, > Dean E. Weimer > http://www.dweimer.net/
Glad that fixed it for you, marking as Solved for people googling around ;) Fix: edit ethernet adapters advanced settings to Permit promiscuous mode _______________________________________________ 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"
