From owner-freebsd-questions  Mon Mar 24 03:02:53 1997
Return-Path: <owner-questions>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.5/8.8.5) id DAA00412
          for questions-outgoing; Mon, 24 Mar 1997 03:02:53 -0800 (PST)
Received: from ns.okbmei.msk.su (gw.okbmei.msk.su [194.190.170.5])
          by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id DAA00403
          for <freebsd-questions@freebsd.org>; Mon, 24 Mar 1997 03:02:44 -0800 (PST)
Received: (from davydov@localhost)
          by ns.okbmei.msk.su (8.8.4/8.8.4)
	  id OAA01751 for freebsd-questions@freebsd.org; Mon, 24 Mar 1997 14:02:15 +0300 (MSK)
Message-Id: <199703241102.OAA01751@ns.okbmei.msk.su>
Subject: about ppp in 2.2-RELEASE
To: freebsd-questions@freebsd.org
Date: Mon, 24 Mar 1997 14:02:14 +0300 (MSK)
From: "Andrew L.Davydov" <davydov@okbmei.msk.su>
Reply-To: "Andrew L.Davydov" <davydov@okbmei.msk.su>
Organization: OKB MEI
X-Mailer: ELM [version 2.4ME+ PL31 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-questions@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

Hi all.

	Please tell me, what is the sux in pppd?

I can't set netmask larger than netmask on ethernet.
If I set netmask in option file smaller than netmask on ethernet, 
it works fine.

What is the use of this stuff? 

sys-bsd.c:
----
	/*
	 * Check that the interface is up, and not point-to-point or loopback.
	 */
	strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
	if (ioctl(sockfd, SIOCGIFFLAGS, &ifreq) < 0)
	    continue;
	if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
	    != IFF_UP)
	    continue;

	/*
	 * Get its netmask and OR it into our mask.
	 */
	if (ioctl(sockfd, SIOCGIFNETMASK, &ifreq) < 0)
	    continue;
	mask |= ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr.s_addr;
	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
----


---------------------
Mr. Andrew L.Davydov
Network Manager   - UniForum Member