Dear Colleagues,
during the using of a switch Mikrotik RB260GSP I detected a problem:
If give out to RB260GSP a recently freed IP-address belonging to some host,
which in turn was in the subnet for some time, and then was removed.
After the RB260 installation, we can’t connect to RB260 from other subnets.
Due to the fact that the switch doesn’t transmit the packets, other switches
can’t update the data in their mac-tables. When the router encapsulates the packets
into frames in the destination address it points mac of the dismantled host, that’s
why packets don’t reach the recipient.
We solve this problem by cleaning ARP table of the router that is the gateway
for the subnet with RB260. I think that problem is in the lack of default gateway.
RB260GSP does not transmit the packets until it gets the destination address from a received packets.
I see 2 ways to fixes of this bug:
- You can add the default gateway and ability to edit it.
- Realize solution to the problem through the broadcast requests.
P.S. With the routes are all right, I checked all a few times.