VARIOUS SECURITIES IN MPLS VPNBRIEFLY SEND THE DETAILS WITH EXAMPLE.?     

PPP - Call restriction :::::Configured the ppp on cisco router 2800 by the serial interface + dial up external 56k modem connected by telephone company. What my question is that i need to allow only the phone calls from  - specified number in router,...

Configured the ppp on cisco router 2800 by the serial interface + dial up external 56k modem connected by telephone company. What my question is that i need to allow only the phone calls from  - specified number in router, because my client is connec...