Hello freebsd-questions, Problem free.A --- catalist (with multy-vlan) | | free.B ping -S free.A -s 1468 free.B All ok ping -S free.A -s 1469 free.B All ok Packet droped ... as i found because mtu of tagged packet is smaller ifconfig vlan10 mtu 1460 dose nothing how the problem can be solved thanks -- Michail V. Chernogorsky,