Package: isc-dhcp-client Version: 4.4.1-2 Severity: normal Tags: upstream
Hi, I am trying to dry-run the dhclient program to request a lease from the server for debugging purposes. At the same time, I am already holding a lease on the same interface, which is why I don't want to release the existing lease, as I have no decent access to the remote machine. According to the man page, I should be able to run dhclient with "-n" to do just that, but: # dhclient -d -v -n -w wlp59s0 Internet Systems Consortium DHCP Client 4.4.1 Copyright 2004-2018 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ No interfaces command -n and requested interface wlp59s0 Usage: dhclient [-4|-6] [-SNTPRI1dvrxi] [-nw] [-p <port>] [-D LL|LLT] [--dad-wait-time <seconds>] [--prefix-len-hint <length>] [--decline-wait-time <seconds>] [--address-prefix-len <length>] [-s server-addr] [-cf config-file] [-df duid-file] [-lf lease-file] [-pf pid-file] [--no-pid] [-e VAR=val] [-sf script-file] [interface]* dhclient {--version|--help|-h} If you think you have received this message due to a bug rather than a configuration issue please read the section on submitting bugs on either our web page at www.isc.org or in the README file before submitting a bug. These pages explain the proper process and the information we find helpful for debugging. exiting. I originally stumbled over this bug on a different Linux distro, but have no good way to report a problem there atm. But that way I am very confident that this is an upstream problem. Kind regards, Toni -- System Information: Debian Release: 10.0 APT prefers testing APT policy: (990, 'testing'), (500, 'testing-proposed-updates'), (500, 'stable'), (70, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-amd64 (SMP w/12 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE 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) LSM: AppArmor: enabled Versions of packages isc-dhcp-client depends on: ii debianutils 4.8.6.1 ii iproute2 4.20.0-2 ii libc6 2.28-10 ii libdns-export1104 1:9.11.5.P4+dfsg-5 ii libisc-export1100 1:9.11.5.P4+dfsg-5 Versions of packages isc-dhcp-client recommends: ii isc-dhcp-common 4.4.1-2 Versions of packages isc-dhcp-client suggests: ii avahi-autoipd 0.7-4+b1 pn isc-dhcp-client-ddns <none> pn resolvconf <none> -- no debconf information
