Date: Sun, 02 Jul 1995 13:04:41 -0700 From: David Greenman <davidg@Root.COM> To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) Cc: freebsd-bugs@freefall.cdrom.com Subject: Re: kern/577: SLIP requires `ifconfig up' now Message-ID: <199507022004.NAA05768@corbin.Root.COM> In-Reply-To: Your message of "Sun, 02 Jul 95 18:35:23 %2B0200." <199507021635.SAA00308@uriah.heep.sax.de>
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>The line ``ifconfig sl$6 ...'' was supposed to set the interface >address and mark the interface automatically `up' (as it's also the >case for other interfaces e.g. ethernet). After your modification, it >didn't work anymore. Sticking another ``ifconfig sl$6 up'' in the >next line worked around this, but i thought it's not a good idea to >break with the previous behaviour. Actually, you probably do want the "ifconfig up", as this has the effect of immediately propagating the new routing information to down-stream hosts (assuming there are any). >Apparently, the interface isn't marked automatically `up' by slattach. Actually, the process of converting the interface to a SLIP device should set it up. I really don't like the 'up' flag not tracking the state of the interface. Perhaps if it was set 'up' only if the interface was a SLIP device, would this be okay? >It works now as one would expect: it's up right after the first >ifconfig, and i can put it down or up later if i want. Ethernet is special - it's not okay to extrapolate this about other network devices. -DG
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