Re: {bb} DHCP and BB

[Sean MacGuire <sean@www.maclawran.ca>]

> Hi all, 
> 
> I'm trying to figure out what the deal is with BB and DHCP, I can see 
> in the code that there seem to have been some attempts in the past to 
> deal with dynamic hosts, but I can't quite figure out what the current 
> state of play is.  

BB supports DHCP everywhere except 'ping'.  (i.e. BBDISPLAY and BBPAGER
can be dhcp addresses, etc).

> The nearest I can figure out is that currently if I put in 0.0.0.0 for 
> the IP address and list a host name then BB will work but won't do a 
> connectivity test to that host.

At the moment (actually for a long time now), we only ping IP addresses
(and not names).  This means that in the case of DHCP (0.0.0.0) - the
ping test is disabled automatically.

Problem was based on the idea "what if the DNS is done" - we're adding
a dependancy where none is needed (this combined with the ability to
use completely bogus names in the bb-hosts file), meant that in order
to avoid confusion, it was just disallowed.  Also since a name can return
more than one IP address, the results can be misleading as well.

> Does anyone have any ideas on what mods might be necessary to get BB to ping
> based on hostname rather than IP address.  Then I could enter in the names
> of my DHCP assigned machines and not particularly care about their current
> IP address.

The ping code is in bb-network.sh... does anyone out there have an opinion
on whether to bring this back or not?
-- 
Sean MacGuire, Reality Engineering 		the BB Ministry of Truth
sean@bb4.com 					http://www.bb4.com
+1 514 630 6415

		"Looking down the barrel of another day"
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