Date: Thu, 1 Jan 1998 18:50:07 +0100 From: J Wunsch <j@uriah.heep.sax.de> To: Brian Somers <brian@awfulhak.org> Cc: John-Mark Gurney <gurney_j@efn.org>, freebsd-bugs@hub.freebsd.org, freebsd-hackers@freebsd.org Subject: Re: kern/5404: slXX slip (tun & ppp) interfaces always point to point Message-ID: <19980101185007.59283@uriah.heep.sax.de> In-Reply-To: <199801011325.NAA17803@awfulhak.demon.co.uk>; from Brian Somers on Thu, Jan 01, 1998 at 01:25:32PM %2B0000 References: <199801010130.RAA10049@hub.freebsd.org> <199801011325.NAA17803@awfulhak.demon.co.uk>
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As Brian Somers wrote: > I intended to remove the possibility of netmasks and broadcast > addresses for pointopoint links, but retrospectively, this will break > the ability to attach to a peer that proxy arps for you (well, it's > already broken). Why? Proxyarping is done on the Ethernet interface, and this one still has a netmask. > I would suggest (and I'm willing to do it) adding the ability to use > SIOCSIFPOINTOPOINT and SIOCGIFPOINTOPOINT on sl* ppp* and tun*. The > default is that these interfaces are pointopoint, but you can change > that by issuing the `S' ioctl. Nope, you can't. `p2p' is an unchangeable attribute of an interface, see IFF_CANTCHANGE in /sys/net/if.h. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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