[Bug 237649] Does not work receiving an IP address via DHCP

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237649

--- Comment #5 from Vladislav V. Prodan <admin at support.od.ua> ---
Network drivers are built into the kernel:
# kldstat -v | egrep '/(ix|bce)'
                178 pci/ix
                630 pci/ixl
                 99 pci/bce
                179 pci/ixv


Now I tried to change the guidelines for using DHCP in rc.conf.

It was:

ifconfig_DEFAULT="SYNCDHCP"
ifconfig_bce0="DHCP"
ifconfig_bce0_ipv6="inet6 accept_rtadv"
ifconfig_bce1="DHCP"
ipv6_activate_all_interfaces="YES"

ifconfig_ix0="DHCP"

ifconfig_bce0="mtu 9000 up"
ifconfig_bce1="mtu 9000 up"
ifconfig_bce2="mtu 9000 up"
ifconfig_bce3="mtu 9000 up"

ifconfig_igb0="mtu 9210 up"
ifconfig_igb1="mtu 9210 up"

ifconfig_ix0="mtu 9710 up descr 'Juniper qfx3500' "
ifconfig_ix1="mtu 9710 up"


It became:

ifconfig_bce0="mtu 9000 up"
ifconfig_bce1="mtu 9000 up"
ifconfig_bce2="mtu 9000 up"
ifconfig_bce3="mtu 9000 up"

ifconfig_igb0="mtu 9210 up"
ifconfig_igb1="mtu 9210 up"

ifconfig_ix0="mtu 9710 up descr 'Juniper qfx3500' "
ifconfig_ix1="mtu 9710 up"

ifconfig_DEFAULT="SYNCDHCP"
ifconfig_bce0="DHCP"
ifconfig_bce0_ipv6="inet6 accept_rtadv"
ifconfig_bce1="DHCP"
ipv6_activate_all_interfaces="YES"

ifconfig_ix0="DHCP"


With this latest version of the rc.conf file, DHCP is working in rc.conf.

# ps -auxww | grep dhc
root  52999    0,0  0,0 11388  2704  -  Is   20:34    0:00,00 dhclient:
system.syslog (dhclient)
root  54338    0,0  0,0 11692  2792  -  Is   20:34    0:00,00 dhclient: bce0
[priv] (dhclient)
_dhcp 81677    0,0  0,0 11860  2916  -  ICs  20:34    0:00,00 dhclient: bce0
(dhclient)
root  89835    0,0  0,0 11400  2708  -  Is   20:34    0:00,00 dhclient:
system.syslog (dhclient)
root  91787    0,0  0,0 11688  2792  -  Is   20:34    0:00,00 dhclient: ix0
[priv] (dhclient)
_dhcp 92922    0,0  0,0 11692  2800  -  ICs  20:35    0:00,00 dhclient: ix0
(dhclient)
root   2925    0,0  0,0 11464  2912  0  S+   20:35    0:00,00 grep --color=auto
dhc


It turns out a number of ifconfig options in rc.conf is not commutative and
depends on the order of the call/assignment.

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