Feature request: Topology view

[waxhead]

I think it would be nice (and useful) if OPNssense had a topology view somewhere.
For example you could use a description linked to the MAC address / DHCP lease and build a table that describes the topology and what is connected to what.

Would this be interesting? I think it can be very useful for both small and larger networks, it could also be expandable with links to firewall rules, traffic stats, etc....

+------------+------+----------+---------------------------------+
| The ether  | WAN  | OPNsense | Switch48p_VLAN1                 |
|            |      |          +--+------------------------------+
|            |      |          |  | LAN                          |
|            |      |          |  +--+---------------+-----------+
|            |      |          |  |  | server01_file |           |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  | server02_www  |           |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  | workstation01 |           |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  | workstation02 |           |
|            |      |          +--+--+---------------+-----------+
|            |      |          | Switch48p_VLAN2                 |
|            |      |          +--+------------------------------+
|            |      |          |  | OPT1_PUB                     |
|            |      |          |  +--+---------------+-----------+
|            |      |          |  |  | server03_file |           |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  | server04_www  |           |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  | server05_ftp  |           |
|            |      |          +--+--+---------------+-----------+
|            |      |          | Switch48p_VLAN3                 |
|            |      |          +--+------------------------------+
|            |      |          |  | OPT2_WIFI                    |
|            |      |          |  +--+---------------------------+
|            |      |          |  |  | rpi_ap1                   |
+------------+------+          |  |  +---------------+-----------+
| Cosmos     | WAN2 |          |  |  |               | Cellphone |
+------------+------+          |  |  |               +-----------+
| Multiverse | WAN3 |          |  |  |               | Laptop    |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  | rpi_ap2                   |
|            |      |          |  |  +---------------+-----------+
|            |      |          |  |  |               | Guest01   |
+------------+------+----------+--+--+---------------+-----------+

[mimugmail]

There are tools available which can do this, to run them on OPN would be overkill

[waxhead]

There are tools available which can do this, to run them on OPN would be overkill

And exactly why would this be overkill?! If you can disable and/or set a polling interval it should not consume much resources.
Besides - OPNsense is made to be extended right?

What other tools can easily achieve this?

[hbc]

It's a job for network managment and monitoring systems. They usually search arp tables, lookup cdp and lldp via SNMP to create network maps.

A firewall should not scan your network. It should protect it.

[mimugmail]

There are tools available which can do this, to run them on OPN would be overkill

And exactly why would this be overkill?! If you can disable and/or set a polling interval it should not consume much resources.
Besides - OPNsense is made to be extended right?

What other tools can easily achieve this?

LibreNMS or Netdisco e.g. but they have too many dependencies to run inside OPNsense

[hbc]

Somebody who has so many devices, that he needs a tool for topology mapping, should be able to afford a dedicated server for this tool easily.

Netdisco really rocks. I use it a lot to lookup mac addresses and like the history function for former connections.