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kaiendz
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Joined: Tue Jun 01, 2021 6:09 pm

Uplink from Mikrotik to a firewall device

Tue Jun 01, 2021 6:30 pm

Hi guys ,

My first Mikrotik device is proving a pain :)

So Briefly described :

2 LANs connect to the router through a managed Switch
LAN1 - 10.50.1.0/25 - Int 2 on Mikrotik
LAN2 - 10.50.2.0/25 - Int 3 On Mikrotik

Then i have an UPlink from the Mikrotik to a firewall device using a /30 network
Mikrotik 10.50.50.1/30(Bonding with Active Backup) - FW 10.50.50.2/30 (Bonding on this end as well)

Routing table is :
# DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 A S 0.0.0.0/0 10.50.50.1 10.50.50.2 1
2 ADC 10.50.1.0/24 10.50.1.1 ether2 0
3 ADC 10.50.2.0/24 10.50.2.1 ether3 0
4 ADC 10.50.50.0/30 10.50.50.1 Internet-FW 0

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From the LANs I can ping internally everything and every GW fine.

From the Mikrotik router I can ping 8.8.8.8 or when I use the Ping tool with source 10.50.1.1(or 10.50.2.1) I can ping again

From the hosts in both LANs i can not get outside or ping anything beyond 10.50.1.1 - GW and other settings are fine.. No firewall rules in place and no NAT as the FW device is taking care of it.

I have static routes on the FW end as well to route back to the Mikrotik for the 2 LANS and it should work but it does not ...Any ideas ?

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