[pkg-dhcp-devel] Bug#888209: isc-dhcp-client: hammers DHCP server if it cannot write lease file

Toni Mueller toni at debian.org
Tue Jan 23 22:35:04 UTC 2018

Package: isc-dhcp-client
Version: 4.3.5-3+b2
Severity: normal


I recently experienced a problem with dhclient issuing a ton of requests
in rapid fire mode in an endless loop because the file system where it
wanted to write its lease file, was mounted read-only. It got a new IP
everytime and added them all to the interface. It would be nice if
dhclient could just be content with having one IP address, and then stop
asking until the lease expires, regardless of the state of the file
system, instead of issuing dozens of DHCP requests per second.

I experien


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.14.0-2-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages isc-dhcp-client depends on:
ii  debianutils       4.8.4
ii  iproute2          4.14.1-1
ii  libc6             2.26-4
ii  libdns-export169  1:9.11.2+dfsg-5
ii  libisc-export166  1:9.11.2+dfsg-5

Versions of packages isc-dhcp-client recommends:
ii  isc-dhcp-common  4.3.5-3+b2

Versions of packages isc-dhcp-client suggests:
pn  avahi-autoipd         <none>
pn  isc-dhcp-client-ddns  <none>
pn  resolvconf            <none>

-- no debconf information

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