DSL-504 ADSL Router User’s Guide
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Router Features
The DSL-504 ADSL Ethernet Router utilizes the latest ADSL enhancements to provide a re liable Internet portal
suitable for most small to medium sized offices. DSL-504 advantages include:
• PPP (Point-to-Point Protocol) Security The DSL-504 ADSL Router supports PAP (Password
Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) for PPP connections.
• DHCP Support Dynamic Host Configuratio n Protocol automatically and dynamically assigns al LAN IP
settings to each host on your network. This eliminates the need to reconfigure every host whenever changes
in network topology occur.
• Network Address Translation (NAT) For small office environments, the DSL-504 allows multiple users
on the LAN to access the Internet concurrently through a single Internet account. This provides Internet
access to everyone in the office for the price of a single user.
NAT improves network security i n effect by hiding the private network behind one global and visible IP
address. NAT address mapping can also be used to link two IP domains via a LAN-to-LAN connection.
• TCP/IP (Transfer Control Protocol/Internet Protocol) The DSL-504 supports TCP/IP protocol, the
language used for the Internet. It is compatible with access servers manufactured by major vendors.
• RIP-1/RIP-2 The DSL-504 supports both RIP-1 and RIP-2 exchanges with other routers. Using both
versions lets the Router to communicate with all RIP enabled devices.
• Static Routing This allows you to select a data pa th to a particular network destination that will remain in
the routing table and never “ age out”. If you wish to define a specific route that will a lways be used for data
traffic from your LAN to a specific d estination within your LAN (for example to another router or a server)
or outside your network (to a ISP defined default gateway for instance).
• Default Routing This allows you to choose a default path for incoming data packets for which the
destination address is unknown. This is particularl y useful when if the Router functions as the sole
connection to the Internet.
• ATM (Asynchronous Transfer Mode) The DSL-504 supports Bridged Ethernet over ATM (RFC148 3), IP
over ATM (RFC1577) and PPP over ATM (RFC 2364).
• Precise ATM Traffic Shaping Traffic shaping is a metho d of controlling the flow rate of ATM data cells.
This function helps to establish the Quality of Service for ATM data transfer.
• G.hs (Auto-handshake) This allows the Router to automatically choose either the G.lite or G.dmt ADSL
connection standards.
• High Performance Very high rates of data transfer are poss ible with the Router. Up to 8 Mbps downstream
bit rate using the G.dmt.
• Full Network Management The DSL-504 incorporates SNMP (Simple Network Management Protocol)
support for web-based management and text-based network management via an RS-232 or Telnet
connection.
• Telnet Connection The Telnet enables a network manager to access the Router’ s management software
remotely.
• Easy Installation The DSL-504 uses a web-based graphical user interface program for convenient
management access and easy set up. Any common web browser software can be used to manage the Router.