dhclient -P -6 ppp0 does not receive dhcp-server responses
Udo van den Heuvel
udovdh at xs4all.nl
Wed May 19 15:29:24 UTC 2021
I found something weird.
I was playing around with the IPv6 side of the ethernet interface that
is the connection to the vdsl modem, and thus carries the PPPoE
I removed IPv6 from the ethernet interface and also from the vlan
interface over this ethernet.
After restarting pppd (?) I suddenly received responses to dhclient's
prefix requests. (as this sequence (re)starts dhclient and then radvd)
So yes, a bit hairy but I think i got a solution now.
I will close the bug with redhat.
Thank you for thinking about this issue.
On 19-05-2021 16:00, Udo van den Heuvel wrote:
> We run fedora 34 on our boxes.
> Dhclient stopped receiving responses from dhcp-server.
> Dhclient only logs XMT steps.
> This happens even with the (ipv6) firewall disabled.
> Tcpdump shows the responses arriving.
> Because of this I created bug
> How can I investigate this issue further and fix it?
> Kind regards,
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