... .4port 10/100Mbps Ethernet switch into a single cost-effective Description:ADSL Modem + 4 port RouterThe ADSL router integrates a full- ... rate ADSL 2/2+ modem, router, firewall, 1 port 10/100Mbps Ethernet switch into a single cost-effective product. Concurrent ... 1577 : IP over ATM (CLIP) ,RFC 1483 : Ethernet over ATM ( MpoA ) ( support Bridge and Router ) ,RFC 2364 : PPP over ATM ( PPPoA ) ,RFC ...