Date: 14 Feb 2001 12:05:29 -0500 From: Lowell Gilbert <lowell@world.std.com> To: freebsd-questions@freebsd.org Subject: Re: Firewall rules block P:2 and P:103 Message-ID: <443ddhqjom.fsf@lowellg.ne.mediaone.net> In-Reply-To: joes@joescanner.com's message of "14 Feb 2001 10:29:57 %2B0100" References: <20010214102008.A2113@junior.kasby> <Pine.WNT.4.31.0102140128210.1164-100000@hood>
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joes@joescanner.com (Joseph Stein) writes: > > Can anybody explain me what P:103 and P:2 mean? Why my ISP keep sending me > > these packets? > > according to /etc/protocols, P:103 is "Protocol independent Multicast" and > P:2 is "Internet Group Management Protocol". > > > Should I allow or deny these packets? > > It's probably safe to block them, but i'm no expert. They're ways of determining membership in multicast groups. If the machine isn't doing multicast, blocking them is fine; if it is, then somebody probably already noticed that multicast didn't work. :-) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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