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Matt, (cc Francesco), You may want to discuss one on one with Francesco. See his ideas below Cheers Dave ------------------------------------------------ Dr David Kelsey Particle Physics Department STFC Rutherford Appleton Laboratory Chilton, DIDCOT, OX11 0QX, UK e-mail: [log in to unmask]<mailto:[log in to unmask]> Tel: [+44](0)1235 445746 (direct) ------------------------------------------------ From: Francesco Prelz <[log in to unmask]> Date: Tuesday, 18 September 2018 at 10:57 To: David Kelsey <[log in to unmask]> Cc: "[log in to unmask]" <[log in to unmask]> Subject: Re: [ipv6] FW: CentOS7 Nodes not getting v6 addresses On Tue, 18 Sep 2018, David Kelsey - UKRI STFC wrote: Any ideas? Do I understand correctly that the Network Mangler is disabled on these C7 nodes ? Is the 'dhclient -6' process running ? BTW, who starts it and keeps it running if the NM is off ? What happens if dhclient -6 -i name-of-the-interface is run by hand ? If the ICMPv6 request goes out but nothing comes back I wouldn't blame the nodes. This is what comes off the top of my head, but reality is usually much more complex. Francesco P. ######################################################################## To unsubscribe from the TB-SUPPORT list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=TB-SUPPORT&A=1