not Transparent Bridging

RouterOS Forwarding Protocols
1

der sir,

here i used MiKroTik V 3.10 with RouterBoard 433
i set Mikrotik to Bridging,
how to set up that bridging, with not Transparent Bridging?
please help..

thank you

2

What do you mean by not transparent bridging?

3

i need the bridging,if every interface direct to bridge (Mikrotik), the bridging not forward another mac address,i want mikrotik NAT mac address
like :
PC1 —> bridge(MIkrotik) ----->PC2
PC1 ip address 192.168.1.1 mac address 00:15:F2:93:BB:5D
bridge (RB433) mac address 00:0B:6B:09:D1:18
PC2 ip address 192.168.1.2 mac address 00:15:F2:93:FF:DD

i want :
PC1 reading to PC2, that PC2 mac is 00:0B:6B:09:D1:18 (bridge’s) and
PC2 reading to PC1, that PC1 mac is 00:0B:6B:09:D1:18 (bridge’s)
it’s posible or not ?
thank you for your reply

4

If I understood correctly then yes it is possible by setting bridge NAT
http://www.mikrotik.com/testdocs/ros/2.9/interface/bridge.php?permalink=0.8573294156056154

5

dear sir,
thanks for your reply,
last week i already try bridge nat with action src-nat
but it is not work,
please give me sample configuration

thank you

6

I just checked it on latest version (v3.25) and it works

/interface bridge nat
add action=src-nat chain=srcnat out-interface=ether3
to-src-mac-address=xx:xx:xx:xx:xx:xx
Where xx:xx:xx:xx:xx:xx is the mac address of the bridge.
This rule will change mac address to all packets leaving bridged ether3 interface.

7

dear sir,

thank you very much for your replied,
i will try that version

8

dear sir,

i already used MT v.3.25
here my configuration :
[admin@MikroTik] > interface bridge print
Flags: X - disabled, R - running
0 R name=“bridge1” mtu=1500 arp=enabled mac-address=00:0C:42:36:79:71 protocol-mode=none priority=0x8000 auto-mac=yes
admin-mac=00:00:00:00:00:00 max-message-age=20s forward-delay=15s transmit-hold-count=6 ageing-time=5m
[admin@MikroTik] > interface bridge nat print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=srcnat out-interface=ether3 action=src-nat to-src-mac-address=00:0C:42:36:79:71
[admin@MikroTik] >

but it’s still not work, any problem with my config ?
please help me

thank you

9

How are you checking if it works or not?

What “/interface bridge nat print stats” show?
Is ether3 bridged?

10

dear sir,

yes ether3 is bridge,
cause, PC1 still can reading mac address PC2 and also PC2 can reading PC1

thank you for your replied