You could have your home setup dhcp server always assign you a certain IP address
thus never having to change you default network card configuration ie you let the dhcp server do the work G as me how! On 31 Oct 2001, Andy Bastien wrote: >Date: 31 Oct 2001 11:57:28 -0500 >From: Andy Bastien <[EMAIL PROTECTED]> >To: debian-laptop@lists.debian.org >Subject: Re: Mobile network configuration >Resent-From: debian-laptop@lists.debian.org > >On Wed, 2001-10-31 at 08:02, David Z Maze wrote: >> I have a fairly new laptop running Debian unstable. It has on-board >> MiniPCI 802.11 wireless (yay!). I'm using kernel 2.4.12, with the >> driver modules from the pcmcia-source package (specifically, the >> wvlan_cs module). >> >> What I'd like to do is have the laptop automatically detect the local >> network and configure itself appropriately at boot time. In >> particular: >> >> -- If I'm at home, use a known static IP address. >> -- If I'm at work, use one set of access points preferentially over >> another, and get an address via DHCP. >> -- Otherwise, use any access point that's available and get an address >> via DHCP. >> >> I'm assuming there's some way I can test based on access-point name to >> determine "at work" vs. "at home" vs. "none of the above". (iwconfig >> does give different ESSID names.) >> >> So, questions: >> >> (1) How do I set this up? It looks like there's no easy way to do >> this using the pcmcia infrastructure. The ifupdown stuff in >> unstable looks like it can pick a network configuration based on >> some script, but the only documentation is examples in >> /usr/share/doc/ifupdown/examples, which are somewhat useful but >> not completely informative. Is the best way to do it really to >> say "force the first ESSID, and if there's signal, use it, else >> repeat?" >> >> (2) Where do I start services (zhm, ntp, possibly others) that should >> only be started when the network is up? pcmcia stuff suggests >> adding it to start_fn in /etc/pcmcia/network.opts, but this won't >> scale well, particularly if I need to add the same things to >> start_fn in three different places. I thought I saw a hint >> somewhere that symlinking init scripts into /etc/network/if-up.d >> would DWIW. >> >> (3) Is all of this documented somewhere, and I just missed it? (The >> Wireless-HOWTO is really hard to read and talks a lot about >> network setups from the AP end, which I really don't care about.) >> >> Right now I'm doing this using 'cardctl scheme ...', which works but >> isn't as automated as I'd like. It'd be nice if the PCMCIA scripts >> gave me more support, but the things you can configure on (scheme, >> slot, driver, MAC address) are mostly fixed, so this really isn't a >> useful set of configuration options. >> >> Thanks, >> > > >If you don't have enough options already, you can try the ifup/ifdown >stuff that comes with debian. Do a "man interfaces" to find out about >how to set up the mappings for multiple configurations of a single >interface > > > >
