netdev - Re: SOCK_RAW does not receive broadcast (with VLAN unless PROMISC)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 09 Jun 2009 12:59:03 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	David Miller <davem@...emloft.net>
CC:	gil.beniamini@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: SOCK_RAW does not receive broadcast (with VLAN unless PROMISC)

David Miller wrote:
> From: Gil Beniamini <gil.beniamini@...il.com>
> Date: Mon, 8 Jun 2009 21:05:25 +0300
> 
>> My application is using PF_PACKET and SOCK_RAW in order to receive all
>> Ethernet packets for the machine-unicast MAC plus all broadcast
>> packets (like ARP broadcast).
> 
>> That worked OK with kernel 2.6.20 (Ubuntu 7.04 with or without VLAN).
>>
>> Now with kernel 2.6.28 (Ubuntu 9.04) it works OK only without-VLAN,
>> but with VLAN the application receive only packets for the
>> machine-unicast MAC, but no broadcast (like ARP broadcast) packets,
>> only if I set the socket to PROMISC mode, I start receive also
>> broadcast packets.

Which driver are you using? Are you sniffing on the VLAN device
or on the underlying device?

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html