#664467 /sbin/dhclient: dhclient tries to receive ip on switched off/cable unplugged

Package:
isc-dhcp-client
Source:
isc-dhcp
Description:
DHCP client for automatically obtaining an IP address
Submitter:
Andrey--k
Date:
2026-08-05 17:33:46 UTC
Severity:
normal
#664467#5
Date:
2012-03-17 23:20:29 UTC
From:
To:
Dear Maintainer,

I have switched of interface via ifconfig eth0 down, but dhclient was trying to obtain address

/var/log/syslog:

ar 18 00:02:00 k--andrey dhclient: No working leases in persistent database - sleeping.
Mar 18 00:03:19 k--andrey avahi-daemon[1996]: Interface eth0.IPv4 no longer relevant for mDNS.
Mar 18 00:03:19 k--andrey avahi-daemon[1996]: Leaving mDNS multicast group on interface eth0.IPv4 with address 169.254.149.7.
Mar 18 00:03:19 k--andrey dhclient: receive_packet failed on eth0: Network is down
Mar 18 00:03:19 k--andrey avahi-daemon[1996]: Withdrawing address record for 169.254.149.7 on eth0.
Mar 18 00:03:19 k--andrey avahi-autoipd(eth0)[3442]: SIOCSIFFLAGS failed: Permission denied
Mar 18 00:03:19 k--andrey avahi-autoipd(eth0)[3442]: Callout STOP, address 169.254.149.7 on interface eth0
Mar 18 00:03:19 k--andrey avahi-autoipd(eth0)[3443]: client: RTNETLINK answers: No such process
Mar 18 00:07:58 k--andrey dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
Mar 18 00:07:58 k--andrey dhclient: send_packet: Network is down
Mar 18 00:08:02 k--andrey dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
Mar 18 00:08:02 k--andrey dhclient: send_packet: Network is down
Mar 18 00:08:08 k--andrey dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
Mar 18 00:08:08 k--andrey dhclient: send_packet: Network is down
Mar 18 00:08:19 k--andrey dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 20
Mar 18 00:08:19 k--andrey dhclient: send_packet: Network is down
Mar 18 00:08:39 k--andrey dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19
Mar 18 00:08:39 k--andrey dhclient: send_packet: Network is down
Mar 18 00:08:58 k--andrey dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 1
Mar 18 00:08:58 k--andrey dhclient: send_packet: Network is down
Mar 18 00:08:59 k--andrey dhclient: No DHCPOFFERS received.
Mar 18 00:08:59 k--andrey dhclient: No working leases in persistent database - sleeping.
Mar 18 00:08:59 k--andrey kernel: [23070.346801] r8169 0000:04:00.0: eth0: link down
Mar 18 00:08:59 k--andrey avahi-autoipd(eth0)[16738]: Found user 'avahi-autoipd' (UID 104) and group 'avahi-autoipd' (GID 107).
Mar 18 00:08:59 k--andrey avahi-autoipd(eth0)[16738]: Successfully called chroot().
Mar 18 00:08:59 k--andrey avahi-autoipd(eth0)[16738]: Successfully dropped root privileges.
Mar 18 00:08:59 k--andrey avahi-autoipd(eth0)[16738]: Starting with address 169.254.149.7
Mar 18 00:08:59 k--andrey kernel: [23070.347654] ADDRCONF(NETDEV_UP): eth0: link is not ready
Mar 18 00:09:01 k--andrey /USR/SBIN/CRON[16741]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete)
Mar 18 00:09:04 k--andrey avahi-autoipd(eth0)[16738]: Callout BIND, address 169.254.149.7 on interface eth0
Mar 18 00:09:04 k--andrey avahi-daemon[1996]: Joining mDNS multicast group on interface eth0.IPv4 with address 169.254.149.7.
Mar 18 00:09:04 k--andrey avahi-daemon[1996]: New relevant interface eth0.IPv4 for mDNS.
Mar 18 00:09:04 k--andrey avahi-daemon[1996]: Registering new address record for 169.254.149.7 on eth0.IPv4.
Mar 18 00:09:08 k--andrey avahi-autoipd(eth0)[16738]: Successfully claimed IP address 169.254.149.7
#664467#12
Date:
2026-08-05 17:31:09 UTC
From:
To:
Dear submitter,

as the package isc-dhcp has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/1143544

The version of this package that was in Debian prior to this removal
can still be found using https://snapshot.debian.org/.

Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Thorsten Alteholz (the ftpmaster behind the curtain)