Date: Thu, 9 Aug 2001 09:45:14 -0700 From: Bill Fenner <fenner@research.att.com> To: jon@freebsd.org Cc: net@freebsd.org, hackers@freebsd.org Subject: Re: forwarding broadcast Message-ID: <200108091645.JAA03207@windsor.research.att.com>
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>On FreeBSD -CURRENT and -STABLE, packets to broadcast addresses are not >forwarded. "smurf" attacks love using broadcast forwarders. RFC 2644 says: > A router MAY have an option to enable receiving network-prefix- > directed broadcasts on an interface and MAY have an option to > enable forwarding network-prefix-directed broadcasts. These > options MUST default to blocking receipt and blocking forwarding > of network-prefix-directed broadcasts. So, your patch just adds the mentioned option -- which I'm fine with, as long as the default is 0 as the RFC requires... Bill To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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