Re: RFC: new network config (was: Re: network configuration)
On Sat, Feb 06, 1999 at 04:48:28AM +1000, Anthony Towns wrote:
> > # /etc/interfaces
> > # Add here your interfaces as you would do with ifconfig(8).
> > #
> > # The netmask must be given. The trailing "up"/"down" can be omitted.
> > #
> > # /etc/init.d/interfaces which is normally called at boottime reads this file.
> > eth0 18.104.22.168 netmask 255.255.255.224
> > eth1 22.214.171.124 netmask 255.255.255.0
> For PCMCIA netcards, you need some way of saying all this stuff,
> and also that you don't want to do this automatically at bootup, but
> that pcmcia-cs or something will take care of it when a card actually
> gets inserted. Possibly a "noauto" option, as per fstab, or something
> similar. That way pcmcia can just "mount" it later.
/sbin/ifconfig eth0 192.168.1.1 netmask 255.255.255.0 up
/sbin/pcmcia-cs eth1 192.168.4.5 netmask 255.255.255.0
/sbin/what_for_dhcp eth2 0.0.0.0 netmask 0.0.0.0
I guess this is very readable and understandable for everybody :-)
And it will be very nice to parse...
> For DHCP, BOOTP and IPv6 (well, DHCPv6) clients, you need some way of
> saying "this other package will take care of working out how to deal
> with addresses and routing and whatever else, so just run /sbin/foo".
I don't know DHCP: is the above solution ok ?
> Not requiring a netmask would probably be nice, and having an optional
> broadcast address might also be nice.
A netmask is absolutely necessary I think - and with the above way
everything is possible :-)
> eth0:1 126.96.36.199 netmask 255.255.255.224
> would be a perfectly reasonable line to have above, btw.
> > ----------------------------------------------------------------
> > # /etc/gateways:
> > #<net | host> NAME1 gateway NAME2 metric VALUE <passive | active | external>
net 188.8.131.52 gateway 184.108.40.206 metric 1 external
> Adding "metric 1 external" would probably be a good move. (metric 1 means
> it's one hop away, external that routed should completely ignore this
> route) "man routed" for some info on how /etc/gateways is meant to work.
> (Bug#23703, fwiw. *sigh*)
> I guess just adding "if there's an interface for this network/host" around
> the code to "add this gateway to the routing table" would make this work
> for noauto and stuff above too.
> Note also that it's just plain not possible to list all routes here,
> for clients that use DHCP and friends in particular (where the routes
> aren't known in advance and can even change).
You will say that using /etc/gateways is not possible ?
> I am, btw, currently thinking that the IP aliases / virtual hosting stuff
> being discussed in another part of this thread should go in a completely
> different package to netbase. netaliases or netvirtual or something,
> perhaps. It seems to me that this gets rid of a large part of the "perl,
> sed, awk, oh my" problem for boot-floppies.
Yes: I, too do not like to have the virtual host stuff in netbase.
Craig Sanders is currently working on such a thing.
But what about the IP_Alias stuff ? Why should this not fit into
/etc/interfaces. (Keep in mind that we even need no entry in /etc/gateways
since the new kernel-2.2.x automatically creates the necessary basic route)
Linux - the choice of the GNU generation. Join the Debian Project
Christian Hammers * Oberer Heidweg 35 * D-52477 Alsdorf * Tel: 02404-25624
50 3C 52 26 3E 52 E7 20 D2 A1 F5 16 C4 C9 D4 D3 1024/925BCB55 1997/11/01