BEC 5102 Series User Manual

4(ALG) are supported such as web browser, ICQ, FTP, Telnet, E-mail, News,Net2phone, Ping, NetMeeting, IP phone and others.FirewallSupports simple firewall with NAT technology and provides option for blocking accessfrom Internet, like Telnet, FTP, TFTP, WEB, SNMP and IGMP.Domain Name System (DNS) relayProvides an easy way to map the domain name (a friendly name for users such aswww.yahoo.com) and IP address. When a local machine sets its DNS server with thisrouter’s IP address, every DNS conversion request packet from the PC to this routerwill be forwarded to the real DNS in the outside network.Dynamic Domain Name System (DDNS)The Dynamic DNS service allows you to alias a dynamic IP address to a statichostname. This dynamic IP address is the WAN IP address. For example, to use theservice, you must first apply for an account from a DDNS service likehttp://www.dyndns.org/.PPP over Ethernet (PPPoE): Provides embedded PPPoE client function to establish aconnection. Users can get greater access speed without changing the operationconcept, sharing the same ISP account and paying for one access account. No PPPoEclient software is required for local computer. The Automatic Reconnect and DisconnectTimeout (Idle Timer) functions are provided, too.Virtual Server: User can specify some services to be visible from outside users. Therouter can detect incoming service request and forward it to the specific local computerto handle it. For example, user can assign a PC in LAN acting as WEB server inside andexpose it to the outside network. Outside user can browse inside web server directlywhile it is protected by NAT. A DMZ host setting is also provided to a local computerexposed to the outside network, Internet.Users can specify some services to be visible from outside users. The router candetect incoming service requests and forward either a single port or a range of ports tothe specific local computer to handle it. For example, a user can assign a PC in theLAN acting as a WEB server inside and expose it to the outside network. Outside userscan browse inside web servers directly while it is protected by NAT. A DMZ host settingis also provided to a local computer exposed to the outside network, Internet.Dynamic Host Configuration Protocol (DHCP) client and serverIn the WAN site, the DHCP client can get an IP address from the Internet ServiceProvider (ISP) automatically. In the LAN site, the DHCP server can allocate a range of