Date: Sat, 19 Jun 2004 15:26:09 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: brad.knowles@skynet.be Cc: nakal@web.de Subject: Re: ppp with dynamic IPs and ipfw "me" Message-ID: <200406192226.i5JMQ953044438@gw.catspoiler.org> In-Reply-To: <p06002029bcf71d8849d7@[10.0.1.3]>
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On 17 Jun, Brad Knowles wrote: > At 11:36 AM +0200 2004-06-17, Oliver Fromme wrote: > >> I'm not sure if this is related to your problem, but you >> have to kill and restart ntpd every time you get a new IP. >> That's because ntpd binds to every IP address it finds upon >> startup explicitely, not just to "*". > > BIND does the same thing. If you're using UDP communications, > you almost always need to make sure that you send the response packet > on the same interface that you got the query from, and it's not > possible to tell which interface a packet comes in on if you just > listen to INADDR_ANY. We should encourage the the appropriate parties to use the IP_SENDSRCADDR feature (see ip(4)) in the FreeBSD ports of their software.
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