Date: Mon, 29 Oct 2012 15:46:48 -0400 From: Kim Culhan <w8hdkim@gmail.com> To: freebsd-current@FreeBSD.org Subject: Interfaces connected by bridge(4) do not pass arp replies Message-ID: <CAKZxVQVXptkzS-hisKRmaooFaqgrHx7nOouO3Uj4vxuTBqkhTg@mail.gmail.com>
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With 2 interfaces present on a bridge0, an arp request is send from msk0 and is received by a machine on em0. When a reply to that arp request is sent by a machine on em0 it is not visible on the bridge0 nor on msk0 as indicated by tcpdump. The arp reply is visible while watching em0 with tcpdump. This behaviour is also true when arp requests are sent from a wlan interface ath0 and received on a wired interface, the arp reply is visible on the wired interface but not visible monitoring with 'tcpdump -i bridge0 arp'. The machine running the em0, msk0 and ath0 interfaces and bridge0 can receive arp requests from any interface and the arp replies are received fine from the machine by the arp requester -err requestor. Any help is greatly appreciated. thanks -kim
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