Michael, Conrad, as far as I am aware, the problem is NOT the dhcp-client of busybox itself but the hook-script used in debian. Find attached a hook-script which I use in my home-brewn rescue and which used to work also with /32 (sorry don't have an environment to test at hand, so I could not proove). So IMHO actually only the hook-script in debian is screwed up. BR Jens On 02.06.2012 22:26, Conrad Wood wrote: > > On 2 Jun 2012, at 22:14, Michael Tokarev wrote: > >> On 02.06.2012 23:59, Conrad Wood wrote: [] >>> In some "cloud" environments, including ours, we configure an >>> ethernet device with a single /32 IP Address. Say, for example >>> 5.6.7.8/32. The Default Gateway is, for example, 9.10.11.12. >>> The linux kernel and BSD happily work as desired and send out >>> an arp request out of the ethernet device and route >>> _everything_ to the default gateway. Configuring this manually >>> is straightforward and works as desired. >> >>> Using the ISC-DHCP client also works as desired. It picks up >>> IP, Netmaks and gateway perfectly well. >> >>> However, in the installer, with the busybox dhcp client, it >>> stalls and claims it is unable to configure the network >>> interfaces. Anything _apart_ from /32 (say /31, /30 etc.) works >>> ok. But then the gateway won't be reachable, as the kernel then >>> tries to do 'propper(?)' routing instead of just forwarding the >>> packets. >> >> Did you try using busybox dhcp client on an already installed >> system, as opposed to the debian installer? >> >> I just tried - dnsmasq as dhcp server, and squeeze busybox - it >> accepts the /32 netmask just fine and configures the interface >> accordingly. I had to overwrite "netmask" option on the server, >> setting it explicitly, and I verified with tcpdump that the >> server sends correct DHCP reply with the right netmask. >> >> But I'm not actually sure how debian installer configures the >> network... >> >> Thanks, >> >> /mjt >> > > Hm, I believe we did. +CC Jens Ott, our network guru, I think he > did try. Let's see what he has to say about that ;) > > Conrad > > > > > Conrad Wood (Deputy CTO, Head of Research & Innovations) > > ProfitBricks GmbH Greifswalder Str. 207 D - 10405 Berlin > > Office: +49 30 51 64 09 21 DDI: +49 30 51 300 021 Email: > conrad.wood@profitbricks.com URL: http://www.profitbricks.com/ > Sitz der Gesellschaft: Berlin Registergericht: Amtsgericht > Charlottenburg, HRB 125506 B. Geschäftsführer: Andreas Gauger, > Achim Weiss > >
Attachment:
udhcp-script.tpl
Description: application/vnd.groove-tool-template