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7.8

Bridging Mikrotik + Vlans + Destination Nat

Asked by bobertperry in Wireless Technologies, Network Routers, Networking Hardware Firewalls

Tags: Mikrotik Bridging Vlan Dst-Nat Destination Nat, Bridge, Mikrotik, VLAN, NAT, DST-NAT, Routers, networking, bridgging

Hello
I am bridging two Ethernet interfaces which have a number of vlans running over them. I want to be able to set up a destination nat for addresses in an address-list.

At first I did not know about the setting "use-ip-firewall-for-vlan" in /interface bridge settings so the only way I get the firewall to see and manipulate packets was to add a bridge for each vlan, add a vlan interface to each physical interface and then add the corresponding vlans be ports for there bridge. This worked perfectly except when the router reboots most ports on the bridge go inactive.

I was about to write a script to run on startup to delete everything then add them again when I stumbled upon the use-ip-firewall-for-vlan command I mentioned earlier. When I have this enabled and only have one bridge (for just the ethernet interfaces) the dst-nat chain sees packets going by but my destination nat does not work correctly. I just lose my connection to everything.

If this does not make sense I can upload my config or Supourt.rif for the different situations.

How should I be doing this?...
 
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[+][-]06/18/09 07:23 PM, ID: 24663424Accepted Solution

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About this solution

Zones: Wireless Technologies, Network Routers, Networking Hardware Firewalls
Tags: Mikrotik Bridging Vlan Dst-Nat Destination Nat, Bridge, Mikrotik, VLAN, NAT, DST-NAT, Routers, networking, bridgging
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Solution Provided By: meverest
Participating Experts: 1
Solution Grade: A
 
[+][-]06/18/09 07:45 PM, ID: 24663520Author Comment

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[+][-]06/18/09 08:00 PM, ID: 24663566Expert Comment

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