We operate a pretty large wireless environment here in Marina Del Rey. 8 AP sectors and over 130 connected subscribers. Each Subscriber antenna has its own static IP address (on a different subnet and VLAN) for management purposes.
We operate a subscriber VLAN that is terminated on each subscriber module. The entire network is connected to a Cisco router that provides DHCP addresses for the subscriber VLAN to the client equipment. Each subscriber is provided with a Linksys router that is connected to the subscriber antenna that then provides the subscriber with a NAT’d LAN with local wifi service and a place to connect any wired equipment.
We found it exceedingly difficult to figure out the client from a reported IP address. IP addresses are not shown in the bridge tables and the AP does not seem to have a bridge map that shows MAC addresses to registered Subscriber antennas! The later seems to be really bizarre omission since I would expect that the AP must know which MAC addresses are accessible through each registered subscriber antenna.
All I can see in the AP bridge table is that the particular MAC address is on the wlan interface. There is nothing more to identify which subscriber antenna registration it belongs to.
The question is.
Does anyone know how I can find which subscriber antenna a particular MAC address is connected to?
Thanks in advance.
Bob Atkins
I’m not sure if I’m getting what your problem is.
Which equipment are you using for APs? Wireless protocol? What about subscriber antennas? Don’t you tag Interface > wireless > interface details Radio Name field on subscriber antennas with each customer name or code?
What about System > Identity?
All I can see in the AP bridge table is that the particular MAC address is on the wlan interface. There is nothing more to identify which subscriber antenna registration it belongs to.
Do you mean on IP > Arp? or Wireless > Registration tab? Isn’t knowing the subscriber antenna mac addresses registered to the AP enough to locate it? Not even enabling the Last IP Address column field (through the downright pointing triangle button on rightmost side of the column header bar)?
Does anyone know how I can find which subscriber antenna a particular MAC address is connected to?
Tip: Is IP > Neighbors of any help?
By your post it seems subscriber antennas are setup in router mode, natting the linksys behind?
Or do you mean how to determine the mac addresses behind the subscriber antenna from the AP?
We are using Mikrotik RB912UAG-5HPnD for access points and predominately Mikrotik SXT Lite5 for subscriber antenna. We are mostly running v6.24 but we have also have started using v6.34.4. Neither version helps solve the problem of finding what MAC addresses are routed to which registered SMs.
End user’s router (typically a Linksys box) is the only device connected directly to the subscriber’s antenna. It gets its IP address by DHCP from our Cisco router that all APs are connected to.
When we need to find the router that is being used by a customer we only have the IP address to start with. Next we find the MAC address in our Cisco router, then we need to find the actual customer’s Subscriber antenna.
We cannot figure out which subscriber’s antenna the router’s MAC address is connected to. This may also apply if the customer has swapped out our router (now we have no access at all) and we need to figure out who the errant MAC address belongs to.
WIth our Cambium (Motorola) and Ubiquiti equipment this is a simple problem that we can poll using SNMP queries to the APs (we never need to talk with the SMs). We can see which Subscriber antennas the various MAC addresses in the AP’s bridge table are being routed to. With Mikrotik - seems to be impossible (either with SNMP or the user interface, web, winbox or command line) to figure out which MAC addresses are associated with which subscriber registered antenna. I’m gitta believe that somewhere buried inside the APs there is a table that associates the registered SMs with the MAC addresses in the bridge table.
Bob
FYI, Neighbors is of no help. It doesn’t associate anything other than Mikrotik devices and it doesn’t provide a ‘path’ to a particular registered SM. At best it leads back to the bridge table that only shows the wlan interface - not the specific registered SM.
Bob