I am unable to add 4.4.4.4/30 and 5.5.5.5/30 into Mikrotik->BGP->Networks since those IP Networks are not assigned to any Mikrotik interface.
In this scenario, should i create a bridge on mikrotik with ether1 and ether2 as members and assign 4.4.4.4/30 and 5.5.5.5/30 onto the bridge interface?
The cisco router also has the following config
ip nat inside source static 192.168.1.111 4.4.4.6
ip nat inside source static 192.168.1.112 4.4.4.7
ip nat inside source static 192.168.1.113 5.5.5.7
ip nat inside source static 192.168.1.114 5.5.5.8
I would like to setup the same on Mikrotik using DNAT but Where should i assign the IP address of 4.4.46, 4.4.4.7, 5.5.5.7 and 5.5.5.8 on Mikrotik? The bridge interface?
You can use a bridge interface in the RouterOS… if it’s not assigned to any physical port or ports, it behaves pretty much like a Loopback interface in the IOS.
Regarding the NAT… check out this example& http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/NAT#Source_NAT
to give you an example in your case:
/ip firewall nat add chain=dstnat dst-address=4.4.4.6
to-addresses=192.168.1.111