On Dec 23, 2015 2:32 AM, "Olivier Cochard-Labbé" <oliv...@cochard.me> wrote:
> Hi, > > If wlan0 interface is member of a bridge, FreeBSD didn't reach to > forward-back packets to wireless client > > My setup is this one: > > internet gateway <--> [net0] fbsd router [net1 + wifi-hostap in bridge0] > <--> wireless client > > and the problem description: > - wireless clients didn't receive any packet back: the fbsd-router blocks > answers because it thinks wireless clients are "unreachable". > - But wireless clients can reach all IP of the fbsd-router hitself without > problem, and fbsd-router can ping them too. > - Ethernet clients connected to the same bridge0 didn't have problem > > A tcpdump on the outgoing interface shows the fbsd-router correctly > receiving/NATing/forwarding the wireless-client packet (10.239.142.104 > natted to 192.168.100.70) toward the Internet-gateway (192.168.100.254), > but once received the response from the internet-gateway it is not able to > reach the wireless-client (unreachable): > [fbsd-router]~> sudo tcpdump -pni net0 icmp > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on net0, link-type EN10MB (Ethernet), capture size 262144 bytes > 07:35:24.869560 IP 192.168.100.70 > 192.168.100.254: ICMP echo request, id > 1, seq 375, length 40 > 07:35:24.869772 IP 192.168.100.254 > 192.168.100.70: ICMP echo reply, id > 1, > seq 375, length 40 > 07:35:24.870314 IP 192.168.100.70 > 192.168.100.254: ICMP host > 10.239.142.104 unreachable, length 36 > > But directly from the fbsd-router, there is no problem for reaching the > wireless-client: > [fbsd-router]~> ping wireless-client > PING 10.239.142.104 (10.239.142.104): 56 data bytes > 64 bytes from 10.239.142.104: icmp_seq=0 ttl=128 time=2.633 ms > 64 bytes from 10.239.142.104: icmp_seq=1 ttl=128 time=1.614 ms > > I'm using a bridge because I need to use only one subnet for all my clients > (ethernet and wifi): > [fbsd-router]~> ifconfig bridge0 > bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu > 1500 > ether 02:82:9f:45:81:00 > inet 10.239.142.126 netmask 0xffffffe0 broadcast 10.239.142.127 > nd6 options=49<PERFORMNUD,IFDISABLED,NO_RADR> > groups: bridge > id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15 > maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200 > root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0 > member: wlan0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > ifmaxaddr 0 port 6 priority 128 path cost 33333 > member: net1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > ifmaxaddr 0 port 2 priority 128 path cost 55 > > And this "unreacheable" problem is related to the bridge, if I remove the > wlan0 from the bridge, there is no more problem. > > What problem can cause FreeBSD to answer back "unreachable" when wlan0 is > member of a bridge ? > > Head versions tested: r290522, r291362, r292613. > > Thanks, > _______________________________________________ > freebsd-wirel...@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org > " > _______________________________________________ email@example.com mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"