I found a nice feature on the
Netgear GS716T switch at home.
The default management interface for the switch is a webinterface, but
thanks to a remark in the serverfault thread
Managed Ethernet switch per-port MAC address translation? I found out it has
a telnet interface on port 60000. Indeed, just type 'admin' at the
wait remark and use the admin password:
$ telnet .... 60000
Trying ...
Connected to ....
Escape character is '^]'.
(Broadcom FASTPATH Switching)
Applying Interface configuration, please wait ...admin
Password:********
(Broadcom FASTPATH Switching) >enable
Password:
(Broadcom FASTPATH Switching) #
Interesting information available:
(Broadcom FASTPATH Switching) #show port all
Admin Physical Physical Link Link LACP Actor
Intf Type Mode Mode Status Status Trap Mode Timeout
------ ------ ------- ---------- ---------- ------ ------- ------ --------
0/1 Enable Auto Down Enable Enable long
0/2 Enable Auto Down Enable Enable long
0/3 Enable Auto 100 Full Up Enable Enable long
0/4 Enable Auto Down Enable Enable long
(Broadcom FASTPATH Switching) #cablestatus 0/3
Cable Status................................... Normal
Cable Length................................... 13m - 13m
There are commands in the this interface which will instantly reboot the
switch, taking quite some time to get networking back. Ooopsie..
I also upgraded the firmware to version 5.0.3.5 and that new firmware even
has dhcp filtering available. Quite a nice switch for the money.