Re: dhcpcd doesn't remove alias address on interface-down?

[Paul Goyette <paul%vps1.whooppee.com@localhost>]

On Fri, 31 Jul 2015, Roy Marples wrote:

> This is not normal or expected!
> I'm very bogged down in my personal life atm, but it would help if you could 
> capture a tcpdump of the bootp messages on the client whilst rebooting the 
> router.
> dhcpcd output with the debug directive in dhcpcd.conf would be of benefit as 
> well whilst the reboot happens.

I can get the tcpdump info with

	tcpdump -i re0 -s 2000 port bootps or port bootpc

But how can I capture the dhcpcd output?  Even with -w it forks to the 
background as soon as it has an address, so it doesn't log any further 
info in stdout/stderr

In any case, the situation might be more complicated.  I just rebooted, 
and got one of the earlier addresses (192.168.1.3) and dhcpcd reported

	re0: IP address 192.168.1.3/24 already exists

I don't know why, but all those addresses and aliases seem to have 
survived the dhcpcd restart.

So I guess I need to find some time when I can conduct some more 
detailed experiments.  :)



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