Date: Tue, 15 May 2001 16:22:22 +0900 From: JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?= <jinmei@isl.rdc.toshiba.co.jp> To: vishwanath pargaonkar <vishubp@yahoo.com> Cc: freebsd-net@FreeBSD.ORG, questions@FreeBSD.ORG Subject: Re: ifioctl Message-ID: <y7v7kzjvzyp.wl@condor2.jinmei.org> In-Reply-To: <20010515071342.16796.qmail@web5301.mail.yahoo.com> References: <20010515071342.16796.qmail@web5301.mail.yahoo.com>
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>>>>> On Tue, 15 May 2001 08:13:42 +0100 (BST), >>>>> vishwanath pargaonkar <vishubp@yahoo.com> said: > i have freebsd 4.2 stable. > i want to know how autoconfiguration feature of ipv6 > gets enabled. > as far as i know ifioctl will call if_up . if_up calls > if_route and if_route calls in6_if_up which calls > in6_ifattach which forms link local address. > but how is ifioctl is initiated for a interface?? When you execute 'ifconfig ifname up', it issues the SIOCSIFFLAGS ioctl for some socket. Then the socket layer in the kernel calls ifioctl(). You should probably see Richard Stevens's "TCP/IP illustrated volume 2" to understand the kernel architecture. JINMEI, Tatuya Communication Platform Lab. Corporate R&D Center, Toshiba Corp. jinmei@isl.rdc.toshiba.co.jp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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