Date: Fri, 9 Dec 2005 10:33:39 GMT From: Gleb Smirnoff <glebius@FreeBSD.org> To: vmarchuk@argocom.cv.ua, glebius@FreeBSD.org, freebsd-bugs@FreeBSD.org Subject: Re: bin/89108: [ppp] Problem in PPP implementation on FreeBSD 5.4 Message-ID: <200512091033.jB9AXdJq004068@freefall.freebsd.org>
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Synopsis: [ppp] Problem in PPP implementation on FreeBSD 5.4 State-Changed-From-To: feedback->closed State-Changed-By: glebius State-Changed-When: Fri Dec 9 10:33:10 GMT 2005 State-Changed-Why: Actually the PPP software or RADIUS should take care about colliding client IP addresses. Historically PPP software didn't do this relying on the fact that kernel will refuse such configuration. Meanwhile this configuration is valid and in some cases it is useful, and thus since FreeBSD 5.4-RELEASE kernel doesn't refuse same IP addresses on different interfaces. To assist software that relies on the old behavior a helper sysctl is available - net.inet.ip.same_prefix_carp_only. To get the old behavior you need to add the following line to your /etc/sysctl.conf: net.inet.ip.same_prefix_carp_only=1 http://www.freebsd.org/cgi/query-pr.cgi?pr=89108
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