Date: Fri, 12 Aug 2005 10:04:42 +0300 From: vladone <vladone@spaingsm.com> To: freebsd-ipfw@freebsd.org Subject: problem: MAC in via internal interface Message-ID: <1581417195.20050812100442@spaingsm.com>
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Hi! I want to permit only traffic from my network class throught internal interface. So i put in ipfw rules this rule to see what traffic is: $cmd add 51 count log logamount 0 all from not $local_net to any in via $lif I study my logs and i find this: Aug 12 09:58:14 freebsd kernel: ipfw: 51 Count UDP 0.0.0.0:68 255.255.255.255:67 in via fxp0 Aug 12 09:58:14 freebsd kernel: ipfw: 51 Count UDP 0.0.0.0:68 255.255.255.255:67 in via fxp0 Aug 12 09:58:18 freebsd kernel: ipfw: 51 Count MAC in via fxp0 When i deny this traffic, network freeze after 3-10 min. I think is because, is blocked traffic inidcate by "MAC in via fxp0". What kind of traffic is this? I can't block ilegal traffic to this reason.
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