LINUX.ORG.RU
λ ifconfig re0 hwfeatures
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        hwfeatures=8037<CSUM_IPv4,CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU,VLAN_HWTAGGING,WOL> hardmtu 9194
        lladdr 00:01:2e:3a:ec:b0
        index 2 priority 0 llprio 3
        groups: egress
        media: Ethernet autoselect (100baseTX full-duplex,rxpause,txpause)
        status: active
        inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
λ ifconfig re0 mtu 9000   
λ ifconfig re0 mtu 9194 
λ ifconfig re0 mtu 9195 
ifconfig: SIOCSIFMTU: Invalid argument

hardmtu 9194

buratino ★★★★ ()
Ответ на: комментарий от buratino
# ifconfig de0 hwfeatures
de0: flags=208843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6> mtu 1500
        hwfeatures=0<> hardmtu 1500
        lladdr 00:03:ff:49:97:80
        index 1 priority 0 llprio 3
        groups: egress
        media: Ethernet autoselect (100baseTX)
        status: active
        inet 10.201.236.139 netmask 0xffff0000 broadcast 10.201.255.255
ne-vlezay ★★★★ ()