Re: Fwd: [Pkg-utopia-maintainers] Bug#933930: Bug#933930: Bug#933930: network-manager: Ethernet connection no longer works

On 2019-08-09 09:42:10 +0200, Beniamino Galvani wrote:
On Thu, Aug 08, 2019 at 06:07:41PM +0200, Vincent Lefevre wrote:
On 2019-08-08 13:37:04 +0200, Michael Biebl wrote:
Bringing Vincent into the loop here.

Vincent, can you gather the information Beniamino is asking for?

Am 08.08.19 um 09:51 schrieb Beniamino Galvani:
Would it be possible to capture a dump of DHCP packets for a success
and for a failure?

Each time after DHCP Request, there are 1 NAK packet (from
and 2 NAK packets (from and, but not always
          ^^^ ACK

Grrr... I meant "ACK". Sorry. Being a bit tired...

in the same order.

With the internal DHCP client, this seems to be a success only if an
ACK packet comes first. There is no such issue with the external one.

By an ACK packet, I meant, one of the 2 packets from 140.77.1.*.

Do you need more information?

Could you capture DHCP packets with:

  tcpdump -i enp0s25 -s 0 -w dhcp.pcap udp port 67 or port 68

when using dhclient and the failing internal client, and attach the

dhcp-dhclient.pcap    - using dhclient (success, though NAK came first)

dhcp-int-failure.pcap - using the internal client (failures until
                        I stopped the capture; ACK never came first)

dhcp-int-success.pcap - using the internal client (success after
                        several requests, once ACK came first)

Vincent Lefèvre <vincent vinc17 net> - Web: <>
100% accessible validated (X)HTML - Blog: <>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

Attachment: dhcp-dhclient.pcap
Description: Binary data

Attachment: dhcp-int-failure.pcap
Description: Binary data

Attachment: dhcp-int-success.pcap
Description: Binary data

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