I'm the network administrator for an ADSL Service Provider.we use Speedtouch 530 ADSL Routers in our networks. the problem is :
the router accepts any user with any ip to access internet. some users on our network put switches in their houses and allow other users to connect through our network illegaly.
I'd like to restrict the access on the router to specified IPs only to prevent the users from connecting others without permission.
the ip of the router is real ip : 22.214.171.124
the ips of the users on the LAN are like : 10.0.0.X
can any one tell me how to configure the router to accept only a list of ips (about 5 ips or 6 ) and block all other unauthorized IPs ?
note : sometimes we use PLANET ADE-3110 Routers instead of speedtouch