I was wondering if you could shed some light on this. I don't know if you have experience with Mikrotik, but I know you have experience with routers in general. Last night I was setting up a Mikrotik box with the following setup:
Have to use the 3com router in between because plugging in the modem directly into the Mikrotik does not establish a link for some reason.
The Mikrotik also runs 3 more networks with 10.59.1.0/24, 184.108.40.206/16, and 192.168.1.0/24 networks. All 3 networks had DHCP servers enabled on their interfaces. I had it setup so all the networks used 192.168.254.1 as their default gateway and they could see eachother via source and destination NATs. I also setup some bandwidth throttling and a little bit of QoS. Seemingly, I had everything working.
When I plugged into each network interface using a laptop and a straight through cable and everything seemd to work. I could ping outside and do DNS queries as well as browse the web, etc. when I plugged into every interface. After some cable management was done, however, and the Mikrotik was hooked back up I could no longer ping 192.168.254.1. Consequentially I couldn't get to anywhere on the net.
If you knew anything that could cause this or maybe just give some helpful helpful insight on this situation.