dhclient or network problem

[Franz Angeli <franz.angeli@gmail.com>]

Hi,

i have a problem with dhclient:

for example interface name eno52 (tg3, Broadcom Limited NetXtreme
BCM5719 Gigabit Ethernet PCIe (rev 01) :

root@********:~# dhclient eno52 -v
Internet Systems Consortium DHCP Client 4.3.5
Copyright 2004-2016 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eno52/3c:a8:2a:e7:87:bf
Sending on   LPF/eno52/3c:a8:2a:e7:87:bf
Sending on   Socket/fallback
DHCPDISCOVER on eno52 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on eno52 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eno52 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eno52 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on eno52 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eno52 to 255.255.255.255 port 67 interval 16
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

tcpdump during dhclient doesn't show anything?!?

root@*********:~# tcpdump -i eno52
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eno52, link-type EN10MB (Ethernet), capture size 262144 bytes


root@*******:~# ip addr show eno52
9: eno52: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state
DOWN group default qlen 1000
    link/ether 3c:a8:2a:e7:87:bf brd ff:ff:ff:ff:ff:ff


if i use the same ethernet cable on my laptop all works fine...

i don't know if is a module problem...or?

Can you help me?

BR