dhcpd in IPv6 mode and syslog messages

Jay Ford jay-ford at uiowa.edu
Fri Oct 4 22:39:31 UTC 2013

On Fri, 4 Oct 2013 alexpro at homelan.lg.ua wrote:
> Few days ago I started to experiment with assigning IPv6 addresses to hosts
> in my home network via DHCP.  When dhcpd running in IPv4 mode, I can see
> his messages in syslog as follows:

On Fri, 4 Oct 2013, A.L.M.Buxey at lboro.ac.uk wrote:
> server on same subnet as the clients?  if not, have you got the required IPv6
> helper on your router?
> is your server firewall etc confogured to allow the DHCPv6/ICMPv6 packets
> through?
> we're using ISC DHCPv6 with clients and no issue(*)

He didn't say it didn't work.  He said the logging was deficient, which is
quite true.

I complained about that via a bug report to dhcp-bugs at isc.org with title
"logging deficiencies for IPv6 on Oct 31, 2011, getting bug# 26377".  I
received no response from ISC & I've seen no improvement by the server.

It does basically work for IPv6, but the lack of logging & other shortcomings
make it much less usable than for IPv4.  I encourage submitting bug reports
about the deficient logging & anything else you find lacking about the IPv6
behavior of ISC DHCP, especially relative to IPv4.  More voices might help.

Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: jay-ford at uiowa.edu, phone: 319-335-5555, fax: 319-335-2951

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