> -----Original Message----- > From: Alexander V. Chernikov [mailto:melif...@freebsd.org] > Sent: Friday, November 01, 2013 9:52 AM > To: Claude Marinier; Ondrej Filip; bird-us...@bird.network.cz > Subject: Re: FreeBSD, OSPF, and multicast > > On 01.11.2013 17:38, Claude Marinier wrote: > >> -----Original Message----- > >> From: Claude Marinier > >> Sent: Friday, November 01, 2013 9:05 AM > >> To: 'Ondrej Filip' > >> Subject: RE: FreeBSD, OSPF, and multicast > >> > >>> -----Original Message----- > >>> From: owner-bird-us...@atrey.karlin.mff.cuni.cz [mailto:owner-bird- > >>> us...@atrey.karlin.mff.cuni.cz] On Behalf Of Ondrej Filip > >>> Sent: Thursday, October 31, 2013 6:37 PM > >>> To: Claude Marinier; bird-us...@bird.network.cz > >>> Subject: Re: FreeBSD, OSPF, and multicast > >>> > >>> On 31.10.2013 14:38, Claude Marinier wrote: > >>>> Hi, > >>>> > >>>> I am building a WAN emulator using a FreeBSD server with DummyNet > >>>> for WAN effects and BIRD for OSPF. At first, no multicast packets > >>>> left the server; then I added a default route and they left by that > >>>> interface only. How can I configure the server so BIRD sends HELLO > >>>> packets out all the interfaces. > >>> Can you send 'show ospf interfaces' and maybe also check if there > >>> are no errors > >> BIRD 1.3.11 ready. > >> bird> show ospf int > >> WANemu: > >> Interface bce0 (xxx.xxx.xxx.8/29) > >> Type: broadcast > >> Area: 0.0.0.0 (0) > >> State: dr > >> Priority: 1 > >> Cost: 10 > >> Hello timer: 10 > >> Wait timer: 40 > >> Dead timer: 40 > >> Retransmit timer: 5 > >> Designed router (ID): xxx.xxx.xxx.14 > >> Designed router (IP): xxx.xxx.xxx.14 > >> Backup designed router (ID): 0.0.0.0 > >> Backup designed router (IP): 0.0.0.0 Interface bce1 > >> (xxx.xxx.xxx.184/29) > >> Type: broadcast > >> Area: 0.0.0.0 (0) > >> State: dr > >> Priority: 1 > >> Cost: 10 > >> Hello timer: 10 > >> Wait timer: 40 > >> Dead timer: 40 > >> Retransmit timer: 5 > >> Designed router (ID): xxx.xxx.xxx.14 > >> Designed router (IP): xxx.xxx.xxx.189 > >> Backup designed router (ID): 0.0.0.0 > >> Backup designed router (IP): 0.0.0.0 > >> bird> show ospf neighbors > >> WANemu: > >> Router ID Pri State DTime Interface Router IP > >> xxx.xxx.xxx.9 1 init/other 00:37 bce0 xxx.xxx.xxx.9 > >> xxx.xxx.xxx.185 1 init/other 00:33 bce1 xxx.xxx.xxx.185 > >> > >>> bird> echo all > >>> bird> debug all all > >> There is a lot of output. How can this be restricted to HELLO messages? > > Got something useful from 'debug all all'. > > > >>>> device1: Scanning interfaces > >>>> WANemu: HELLO packet received from 131.140.113.9 via bce0 > >>>> WANemu: HELLO packet received from 131.140.113.185 via bce1 > >>>> device1: Scanning interfaces > >>>> WANemu: HELLO packet sent via bce1 > >>>> WANemu: HELLO packet sent via bce0 > >>>> WANemu: HELLO packet received from 131.140.113.9 via bce0 > >>>> WANemu: HELLO packet received from 131.140.113.185 via bce1 > > > > I am also running 'tcpdump' on one of the interfaces: > > - it does not show bird's HELLO packets > Just to ensure: what filter expression is set for tcpdump?
None. > > - it does show the Cisco router's HELLO packets > > - it does show CDP packets from the Cisco router > > - it does show CDP packets from the server running bird > Do you have some kind of firewall enabled (ipfw, pf, or..)? Yes, IPFW is configured with some of the default entries (from sample config file) and pipes for delay. 00010 pipe 1 ip from any to any out xmit bce0 00020 pipe 2 ip from any to any out xmit bce1 00100 allow ip from any to any via lo0 00200 deny ip from any to 127.0.0.0/8 00300 deny ip from 127.0.0.0/8 to any 00400 deny ip from any to ::1 00500 deny ip from ::1 to any 00600 allow ipv6-icmp from :: to ff02::/16 00700 allow ipv6-icmp from fe80::/10 to fe80::/10 00800 allow ipv6-icmp from fe80::/10 to ff02::/16 00900 allow ipv6-icmp from any to any ip6 icmp6types 1 01000 allow ipv6-icmp from any to any ip6 icmp6types 2,135,136 65000 allow ip from any to any 65535 deny ip from any to any I will look into removing the IPv6 rules later. > >> I suspect that there is an underlying assumption (like IGMP or PIM) > >> which I have not yet discovered. > >> > >>> Ondrej > >>> > >>>> Thank you. > >>>> > >>>> Details: > >>>> > >>>> FreeBSD WAMemu 9.2-RELEASE FreeBSD 9.2-RELEASE #0 r255898: Thu Sep > >>>> 26 22:50:31 UTC 2013 > >>>> r...@bake.isc.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 > >>>> > >>>> bird-1.3.11 > >>>> > >>>> P.S. I got it working by avoiding multicast with 'type > >>>> nonbroadcast' and 'neighbors'. > >>>> -- > >>>> Claude Marinier