How to reset admin's password on 3com superstack ?

Hi...lists As the subject said, I have forgot admin's password of my 3com switching it's model is "3300 SuperStack" I'd like to know is there any way to reset admin's password ? CC to my email address is appreciated. TIA, pjn __

How can I do this on DHCP server ?

Hi list, I've set up a DHCP server but I'd like to know which address (from address pool) hasn't assigned to any machine. Is there command line to accomplish this. PS. I use ISC-DHCP v.3 installed from ports. TIA, Pote

How can I subnetting my network ?

Hi, all I want to build a network as shown below. All devices is in my responsibity except the upsteam router. My question is If I will assign public IP address to all interfaces, is it neccessary that I must inform the upstream router's administrator to add my subnet in routing

Can I subnet my network like this ?

Hi, all I would like to verify my knowledge by building the network like below but not sure whether it's impossible for subnetting like this - say, from Gateway no2, is divided to 172.16.0.0/16 and 172.17.0.0/16 subnet. I heard that it isn't recommend or impossible (not sure again) to use F