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 10.0.1.1) > and 2 NAK packets (from 140.77.1.11 and 140.77.1.12), but not always > 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. > > 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 files? Or, if you prefer, attach the decoded text output: tcpdump -vvenni enp0s25 udp port 67 or port 68 Thanks, Beniamino
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