| 摘要 |
<p>An access node (EDAl) is connected to end-users (EUl, EU2) , routers (R1,R2,R3) and a DHCP-server (DHl) . The end-user (EUl) defines desired services provided via the routers. A purpose is to automatically provide simultaneous access to services via two or more of the routers, although the end- user (EUl) simultaneously handles only one router. The connections are secure. The end-user requests (RQl) one of the services. The access node identifies the end-user (EUl) and sends a corresponding request (RQ2) to the DHCP- server (DHl) , which dynamically allocates addresses to the end-user and to all the routers for the desired services. The access node snoops the addresses in a DHCP otption 121 message (RPl) from the DHCP-server (DHl) , resolves the router addresses, stores IP router addresses and IP MAC addresses in a memory (TABl) and sets MAC addresses in MAC filters (MX, MY, MZ) . An option 3 reply (RP2) with one router (Rl) is sent to the end-user (EUl) , which after request for one service reaches all the services stored in the memory (TABl) .</p> |
