I can confirm this behavior on my systems.
from syslog (identifying information removed):
Mar 23 19:10:41 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 3 (xid=0x3e38a8c2)
Mar 23 19:10:44 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 8 (xid=0x3e38a8c2)
Mar 23 19:10:52 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 20 (xid=0x3e38a8c2)
Mar 23 19:11:12 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 8 (xid=0x3e38a8c2)
Mar 23 19:11:20 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 13 (xid=0x3e38a8c2)
Mar 23 19:11:33 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 9 (xid=0x3e38a8c2)
Mar 23 19:11:42 HOSTNAME dhclient: No DHCPOFFERS received.
Mar 23 19:11:42 HOSTNAME dhclient: No working leases in persistent database -
sleeping.
Mar 23 19:13:12 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 3 (xid=0x49984e3f)
Mar 23 19:13:15 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 5 (xid=0x49984e3f)
Mar 23 19:13:20 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 10 (xid=0x49984e3f)
Mar 23 19:13:30 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 11 (xid=0x49984e3f)
Mar 23 19:13:41 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 17 (xid=0x49984e3f)
Mar 23 19:13:58 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 10 (xid=0x49984e3f)
Mar 23 19:14:08 HOSTNAME dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port
67 interval 5 (xid=0x49984e3f)
Mar 23 19:14:13 HOSTNAME dhclient: No DHCPOFFERS received.
Mar 23 19:14:13 HOSTNAME dhclient: No working leases in persistent database -
sleeping.
This repeats forever.
dhclient was launched by a script thusly: /sbin/dhclient -1 -nw eth0_20
/etc/dhcp/dhclient.conf:
option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;
send host-name = gethostname();
request subnet-mask, broadcast-address, time-offset, routers,
domain-name, domain-name-servers, domain-search, host-name,
dhcp6.name-servers, dhcp6.domain-search,
netbios-name-servers, netbios-scope, interface-mtu,
rfc3442-classless-static-routes, ntp-servers,
dhcp6.fqdn, dhcp6.sntp-servers;
timeout 60;
retry 60;
initial-interval 3;
package isc-dhcp-client version 4.2.4-7ubuntu8
Is this fixed in the newer versions?
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https://bugs.launchpad.net/bugs/1503680
Title:
dhclient for eth0 does never exit and retries dhcp foerever
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