Hi Tarkan, I've already tried all of them but it is not working. Also note that PIM support was removed from OpenBSD; so it's an option. [*]
[*] https://www.mail-archive.com/[email protected]/msg43264.html On Wed, Nov 9, 2022 at 3:37 PM Tarkan Erimer - BSD <[email protected]> wrote: > > > On 9.11.2022 12.39 PM, Barbaros Bilek wrote: > > Hi again, > > > > I've added this route : > > ''route add 239.0.1.2/32 172.16.1.1'' > > But nothing changed. > > Is OpenBSD capable of multicast routing? Am I doing a wrong > configuration? > > Any thoughts? > > Thanks in advance. > > > > On Tue, Nov 8, 2022 at 6:28 PM Barbaros Bilek <[email protected]> > > wrote: > > > >> Hi Folks, > >> > >> I try to do multicast routing with OpenBSD 7.2 > >> Here is my setup: > >> > >> # Default GW to internet > >> echo 'inet autoconf' > /etc/hostname.em0 > >> # Get 10.10.12.81/24 from dhcp-server with gw 10.10.12.1 > >> > >> # Multicast Server Interface (transmit packets) > >> echo 'inet 172.16.1.1 255.255.255.0 NONE' > /etc/hostname.em1 > >> # Multicast Client interface (receive packets) > >> echo 'inet 172.16.55.1 255.255.255.0 NONE' > /etc/hostname.em2 > >> # Forward ip & multicast > >> echo 'sysctl net.inet.ip.forwarding=1' > /etc/sysctl.conf > >> echo 'sysctl net.inet.ip.mforwarding=1' >> /etc/sysctl.conf > >> # Enable Multicast on OpenBSD > >> rcctl enable multicast > >> # Disable PF > >> rcctl disable pf > >> > >> # Mrouted Configuration > >> multicast_test# cat /etc/mrouted.conf > >> name STD 239.0.0.0/16 > >> pruning on > >> phyint 172.16.1.1 threshold 16 > >> boundary STD > >> altnet 172.16.0.0/16 > >> phyint 172.16.55.1 threshold 16 > >> boundary STD > >> altnet 172.16.0.0/16 > >> phyint 10.10.12.81 disable > >> # Enable mrouted on startUp > >> rcctl enable mrouted > >> # Reboot system > >> reboot > >> > >> For testing purposes I use this application : Singlewire Software IC > Test > >> Multicast (It uses ) > >> I'm sure about my testing environment. Because when I use a Brocade ICX > L3 > >> switch with router pim configuration everything is ok. But with OpenBSD > >> multicast routing fails: > >> > >> Here some logs : > >> > >> multicast_test# mrinfo > >> > >> 127.0.0.1 (localhost) [version 3.8,prune,genid,mtrace]: > >> > >> 10.10.12.81 -> 0.0.0.0 (local) [1/1/disabled] > >> > >> 172.16.1.1 -> 0.0.0.0 (local) [1/16/querier/leaf] > >> > >> 172.16.55.1 -> 0.0.0.0 (local) [1/16/querier/leaf] > >> > >> > >> multicast_test# netstat -g > >> > >> > >> Virtual Interface Table > >> > >> Vif Thresh Local-Address Remote-Address Pkt_in Pkt_out > >> > >> 1 16 172.16.1.1 458 0 > >> > >> 2 16 172.16.55.1 0 0 > >> > >> > >> Multicast Forwarding Cache > >> > >> Hash Origin Mcastgroup Traffic In-Vif > >> Out-Vifs/Forw-ttl > >> > >> 0 172.16.1.1 239.0.1.2 458B 1 > >> > >> > >> Total no. of entries in cache: 1 > >> > >> > >> IPv6 Multicast Interface Table is empty > >> > >> IPv6 Multicast Routing Table is empty > >> > >> > >> Output when I run mrouted at debug mode : > >> > >> > >> multicast_test# mrouted -dvvvv > >> > >> > >> > >> > >> mrouted: debug level invalid > >> > >> debug level 2 > >> > >> 18:06:55.405 mrouted version 3.8 > >> > >> 18:06:55.407 Getting vifs from kernel interfaces > >> > >> 18:06:55.408 installing em0 (10.10.12.81 on subnet 10.10.12/24) as vif > #0 > >> - rate=0 > >> > >> 18:06:55.408 installing em1 (172.16.1.1 on subnet 172.16.1/24) as vif > #1 - > >> rate=0 > >> > >> 18:06:55.408 installing em2 (172.16.55.1 on subnet 172.16.55/24) as vif > #2 > >> - rate=0 > >> > >> 18:06:55.408 Getting vifs from /etc/mrouted.conf > >> > >> 18:06:55.408 Installing vifs in mrouted... > >> > >> 18:06:55.408 vif #1, phyint 172.16.1.1 > >> > >> 18:06:55.409 vif #2, phyint 172.16.55.1 > >> > >> pruning on > >> > >> 18:06:55.410 Installing vifs in kernel... > >> > >> 18:06:55.410 vif #1, phyint 172.16.1.1 > >> > >> 18:06:55.410 vif #2, phyint 172.16.55.1 > >> > >> vifs_with_neighbors = 0 > >> > >> > >> Virtual Interface Table > >> > >> Vif Name Local-Address M Thr Rate > >> Flags > >> > >> 0 em0 10.10.12.81 subnet: 10.10.12/24 1 1 0 > >> disabled > >> > >> 18:06:55.411 warning - SIOCGETVIFCNT fails > >> > >> > >> 1 em1 172.16.1.1 subnet: 172.16.1/24 1 16 0 > >> querier > >> > >> alternate subnets: 172.16/16 > >> > >> boundaries: 239.0/16 > >> > >> 18:06:55.411 warning - SIOCGETVIFCNT fails > >> > >> > >> 2 em2 172.16.55.1 subnet: 172.16.55/24 1 16 0 > >> querier > >> > >> alternate subnets: 172.16/16 > >> > >> boundaries: 239.0/16 > >> > >> 18:06:55.411 warning - SIOCGETVIFCNT fails > >> > >> > >> > >> Multicast Routing Table (3 entries) > >> > >> Origin-Subnet From-Gateway Metric Tmr In-Vif Out-Vifs > >> > >> 172.16.55/24 1 0 2 1* > >> > >> 172.16.1/24 1 0 1 2* > >> > >> 172.16/16 1 0 1 2* > >> > >> > >> 18:07:15.583 update 0 starting at 3 of 3 > >> > >> 18:07:16.593 update 0 starting at 3 of 3 > >> > >> 18:07:17.602 update 0 starting at 3 of 3 > >> > >> 18:07:18.612 update 0 starting at 3 of 3 > >> > >> > >> When i watch packets on em1 i can see multicast packets are arriving: > (constantly > >> increasing...) > >> > >> multicast_test# tcpdump -nettti em1 host 239.0.1.2 > >> > >> tcpdump: listening on em1, link-type EN10MB > >> > >> Nov 08 18:19:33.344608 2c:f0:5d:73:f8:c4 01:00:5e:00:01:02 0800 73: > >> 172.16.1.2.50665 > 239.0.1.2.20480: udp 31 > >> > >> Nov 08 18:19:34.358455 2c:f0:5d:73:f8:c4 01:00:5e:00:01:02 0800 73: > >> 172.16.1.2.50665 > 239.0.1.2.20480: udp 31 > >> > >> > >> But at the receiver side (em2) there are no multicast packets > transmitted > >> by em1 > >> After a while i saw only one packet as igmp nreport with TTL 1 > >> > >> multicast_test# tcpdump -nettti em2 host 239.0.1.2 > >> > >> tcpdump: listening on em2, link-type EN10MB > >> > >> Nov 08 18:21:12.994258 2c:f0:5d:73:f8:c3 01:00:5e:00:01:02 0800 60: > >> 172.16.55.2 > 239.0.1.2: igmp nreport 239.0.1.2 [ttl 1] > >> > >> > >> I've even tried some igmp/mcast proxies but could not figure out how to > >> become a multicast router with my best OS, OpenBSD. > >> > >> I can not understand what I am doing wrong. > >> Thanks and regards. > >> > > Hi Barbaros, > > Those links below might help: > > https://troglobit.com/howtos/pimd-on-openbsd/ > > > https://www.reddit.com/r/openbsd/comments/aw7vo7/64_simple_multicast_routing/ > > https://github.com/Esdenera/mcast-proxy > > http://undeadly.org/cgi?action=article;sid=20110222002946 > > Cheers, > > Tarkan > >
