RB250GS Routing problem

So today I went and put my money where my mouth is and bought a RB250GS.

Interesting…

However, I’ve got a big problem.

Where do I enter the IP address subnet mask and default gateway?

SwOS - System - General has an option for an IP address. I’m not sure if I can enter something like 10.0.0.1/29 and if I can, then where would I enter the default gateway.

I want to monitor this switch using a Dude Server that’s four radio links and six subnets distant, so a default gateway is vital.

Emmm … It’s a switch. Plug in cables, and it will work.

Dont be so dense. I thought his question was pretty clear. How do you configure the IP address and default gateway of the switch so it can be monitored via SNMP and/or Dude?

Gateway can’t be configured, switch doesn’t understand routing. Manual (in progress) is here: http://wiki.mikrotik.com/wiki/SwOS

Wow. I wouldnt consider it routing. It would be basic IP communication. Remote management of the switch would REQUIRE a gateway.

No kidding.

I guess you could put it behind a router that forwards traffic to the switch via destination NAT. You’d also have to source NAT to an IP address on the router inside so that the switch can reply. What a crutch, though. I don’t see the point of a manageable switch that cannot be managed remotely.

It’s very smart (hence the S in the name), it always finds out the path where the request came from and replies that way. Basically gateway is not needed. We will update the manual with info on this.

Any ideas as to what the SNMP problem is?

what SNMP problem ?

Last two posts in this thread?

http://forum.mikrotik.com/t/rb250gs-ip-addresses-question/38860/1

please don’t cross post

I dont own this product, but ya it does make logical sense that it should have a place to enter a default gateway, if its a managed switch even, my ancient netgear managed switches have a place for a gateway, so I can access it when Im off the direct network. Otherwise monitoring this device via an off network SNMP collector or accessing it anywhere not directly in its subnet would be impossible without some sort of NAT (ugly)

What about logging where the switch has to connect out?

This switch will probably remember MAC address the connection came from and will reply back to the same MAC. If MAC is of a router then packet will be handled by the router accordingly to it’s routing table. This will work as long as the same router handles outgoing routes.

switch will probably remember MAC address the connection came from

It would really really have to think hard about it’s place in the world, and Life in general if it wants to be a Switch and cannot remember which MAC came in from which port …

Hmm. SWOS feature request :-

Switch Consellor module to re-convince the Switch of it’s value in life, and how much we all appreciate it’s work.

Well guys, time will tell.

In my case, it’s next Wednesday 7/7/11.

SW1 (RB250GS) will be plugged into a 3Com Switch that’s part of a larger network and also plugs into a RB600A.
SW1 is then getting a RB750 plugged into it with a couple of LANs dangling off that.
The backbone from SW1 then goes up to the next floor where there’s a second RB250GS
That one also gets an RB750 plugged into it with a couple of LANs dangling off that.
The backbone continues up one more floor from the second RB250GS to a third RB250GS. This one’s going to be singing for it’s supper.
It one has an RB450 and an RB750 plugged into it. Each of those has a couple if LANs dangling off it.

I’ve set the three RB250GSs on the same subnet as the 3Com.

The whole lot has been running on the bench for most of Saturday and is still buzzing along.

Speeds between the RB250GSs seem to be very good. If I plug a laptop with a gigbit NIC into the 3rd RB250GS and I plug a pc with a gigabit NIC into the first one, I don’t have much loss of throughput like you’d get on some cheap switches. There don’t appear to be lost packets - but I have not run an Asterisk server with SNOM phones on the setup, so that may well change if there’s a broadcast storm from a phone.

This. Can this switch log?

No.

As for any feature related questions, here is the manual: http://wiki.mikrotik.com/wiki/SwOS

i just turned on my RB250GS as well.

any ideas how smart switch will know on which VLAN it’s management IP address should answer? perhaps ACL with blackhole forwarding rules will help to understand ? :slight_smile:


my first task is to talk with switch via VLAN trunk.