Freebsd networking
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Documentation
freebsd handbook: network communication https://docs.freebsd.org/en/books/handbook/partiv/
Locations
/etc/rc.conf
persist network configuration /etc/resolv.conf
DNS config
Tools
FreeBSD ifconfig FreeBSD route
Usage
Restart Network
service netif restart service routing restart
Examples
Manual DHCP Connection
# Starting a manual network connection from CLI sudo route add default 192.168.1.1 # Set path to your router ifconfig # find interface you want ifconfig em0 up # set interface 'up' dhclient em0 # (equivalent of DHCPCD, requests IP address)Static IPV4
# /etc/rc.conf ifconfig_em0="inet 192.168.1.220 netmask 255.255.255.0" ifconfig_em0_alias0="..." defaultrouter="192.168.1.1" # 'default' route, if directing traffic between ifaces gateway="192.168.1.1" # 'default' gateway, for connecting to internet# If you still are not able to get outside the internal # network, try deleting and re-adding the default router from CLI route delete default route add default 192.168.1.1 # The following should restart your internet connection. ifconfig em0 inet 192.168.0.254 netmask 255.255.255.0Static IPV6
NOTE:
untested
# /etc/rc.conf ifconfig_em0_ipv6="inet6 2607:f0d0:1002:51::4" # static ip ifconfig_em0_alias0="inet6 ..." # iface aliases ipv6_defaultrouter="2607:f0d0:1002:51::4" # 'default' ipv6 route (if routing packages between ifaces) ipv6_gateway="2607:f0d0:1002:51::4" # 'default' ipv6 gateway (connecting to the internet)IP Aliases
Assign multiple IP addresses to a network interface.
commonly used for assigning IPs to jails.# /etc/rc.conf ifconfig_em0_alias0="192.168.1.221/24" ifconfig_em0_alias1="192.168.1.222/24"