Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP All
Known Affected Versions:
12.1.0, 12.1.1
Fixed In:
13.0.0, 12.1.2
Opened: Feb 20, 2016 Severity: 3-Major
Modifications to /sys management-dhcp do not take effect.
DHCP for management interface does not function correctly.
Custom management-dhcp settings configured.
Perform the following procedure: 1. Remount /usr to be read-write. # mount -o rw,remount /usr 2. Edit the following file, which is a symlink into /usr. # vi /defaults/config/templates/dhcp.tmpl 3. Change this line around line 7 to add escaped quotes print "interface \"$mgmt_interface\" {\n"; 4. Remount /usr back to read-only. # mount -o ro,remount /usr 5. Make a change to the list of DHCP requested options. # tmsh modify sys management-dhcp sys-mgmt-dhcp-config request-options delete { ntp-servers } 6. Verify that "eth0" is quoted in this file: # grep interface /etc/dhclient.conf interface "eth0" { 7. Create a symbolic link to dhclient.conf # cd /etc/dhcp # ln -s ../dhclient.conf . 8. Restart DHCP on the management interface. # tmsh modify sys global-settings mgmt-dhcp disabled # tmsh modify sys global-settings mgmt-dhcp enabled No system reboot should be necessary.
Management DHCP settings now take effect as expected when custom management-dhcp settings are configured.