пытаюсь достучаться через нет по внешнему IP до D-Link, он настроен, за портом ehter3-inet
Примерно так:
# Bridge
/interface bridge add name=local-bridge
/interface bridge port
add bridge=local-bridge interface=ether1 hw=yes
add bridge=local-bridge interface=ether2 hw=yes
add bridge=local-bridge interface=ether3 hw=yes
add bridge=local-bridge interface=ether4 hw=yes
add bridge=local-bridge interface=ether5 hw=yes
# Vlan database
# VLAN 679 - Service internet
# VLAN 678 - Service video / native / management
/interface ethernet switch vlan
add ports=ether1,ether2,switch1-cpu switch=switch1 vlan-id=678
add ports=ether1,ether3 switch=switch1 vlan-id=679
# Vlan - Port
/interface ethernet switch port
# Hybrid
set ether1 vlan-mode=secure vlan-header=leave-as-is default-vlan-id=678
# Access - vlan 678 (video)
set ether2 vlan-mode=secure vlan-header=always-strip default-vlan-id=678
# Access - vlan 679 (inet)
set ether3 vlan-mode=secure vlan-header=always-strip default-vlan-id=679
# Access - vlan 678 (other)
set ether4 vlan-mode=secure vlan-header=always-strip default-vlan-id=678
set ether5 vlan-mode=secure vlan-header=always-strip default-vlan-id=678
# Vlan iface
/interface vlan add name=vlan678 comment="=VIDEO=" vlan-id=678 interface=local-bridge
# Aliases
/ip address add address=192.168.x.x/x interace=vlan678