Some cable modems may incorporate a router and a DHCP server to provide the LAN with IP network addressing.

Smaller LANs generally consist of one or more switches linked to each other, often at least one is connected to a router, cable modem, or ADSL modem for Internet access.

It is an umbrella term, used to cover multi-function networking appliances used in homes, which may combine a DSL modem or cable modem, a network switch, a consumer-grade router, and a wireless access point.

Signals received from the far-end modem are demodulated to yield a corresponding bit pattern that the modem retransmits, in digital form, to its interfaced equipment, such as a computer, router, switch, etc.

The standard way to let multiple computers share a DSL connection uses a router that establishes a connection between the DSL modem and a local Ethernet, Powerline, or Wi-Fi network on the customer's premises.

With many service providers, the customer may opt for a modem which contains a wireless router.

Picture of the internals of an ADSL modem / Router ( computing ) | router.

From a data forwarding and network topology perspective, this router functionality is typically kept distinct from the cable modem functionality ( at least logically ) even though the two may share a single enclosure and appear as one unit, sometimes called a residential gateway.

So, the cable modem function will have its own IP address and MAC address as will the router.

The user's computer or router uses an attached modem to encode and decode Internet Protocol packets and control information into and from analogue audio frequency signals, respectively.

Many households and small businesses have a router connected to the DSL modem, and all their computers are connected by various types of wired or wireless networks to that router.

VDSL customers consist of any service with more than 1 Mbit / s of upload speed, and they must rent the Cellpipe router 802. 11n-capable device instead, which also bundles a superior DSL modem.

Using DMT is useful since it allows the communications equipment ( user modem / router and exchange / DSLAM ) to select only bins which are usable on the line thus effectively obtaining the best overall bit rate from the line at any given moment in time.

A common example would have a Tandem as host connected to multiple automatic teller machines often with a modem or Cisco router in-between.

For example, the host may connect to Internet using a modem / router configured in the bridge mode and share the PPPoE connection with ICS.

The original equipment supplied was a rack-type hard-wired modem and separate router.

Later, as Orange, they supplied a proper wireless ADSL modem router, the Orange-badged Siemens SE572, with just one Ethernet port.

In a typical residential network, nodes obtain Internet access through a DSL or cable modem connected to a router or network address translator ( NAT / NAPT ).

In data communication, a physical network node may either be a data circuit-terminating equipment ( DCE ) such as a modem, hub, bridge or switch ; or a data terminal equipment ( DTE ) such as a digital telephone handset, a printer or a host computer, for example a router, a workstation or a server.

It is composed of a pair of devices: the ADSL modem / router and the IPTV set top box / media player.

The Freebox server is a DSL modem, a router, a Wi-Fi hot spot, a NAS ( 250 GB hard drive ), a DECT base with up to 8 connected DECT phone sets, and a digital video recorder for TNT also known as DVB-T and IPTV.

* The DSL modem router can be configured either as an Ethernet router or a simple DSL modem ( bridge mode ).

AppleTalk included a number of features that allowed local area networks to be connected with no prior setup or the need for a centralized router or server of any sort.

Paying CIX members were allowed to attach to the router directly or via leased lines.

In order for IPsec to work through a NAT, the following protocols need to be allowed through the NAT interface ( s ), e. g. the LAN router:

For routing, the entries in the IPX routing table are similar to IP routing tables ; routing is done by network address, and for each network address a network: node of the next router is specified in a similar fashion an IP address / netmask is specified in IP routing tables.

Group-and-Source-Specific Queries allow the router to determine if any systems desire reception of messages sent to a multicast group from a source address specified in a list of unicast addresses.

When a multicast packet is received by a router, it is forwarded by the router's interfaces specified in the routing table.

If a " Hello " packet is not received from a neighbor for a specified time period, the router is assumed down and removed from the neighbor table.

Using a cellular router, PCMCIA or USB card, customers are able to access 3G broadband services, regardless of their choice of computer ( such as a tablet PC or a PDA ).

Players with a compatible Nintendo DS game can connect to the service via a Wi-Fi network using a Nintendo Wi-Fi USB Connector or a wireless router.

This was the only router supporting a separate USB modem, and was the only router compatible with BT's new USB ADSL service, which made it very popular and firmly established DrayTek as a key player in the broadband Internet hardware market in the UK.

A typical home or small office router showing the ADSL telephone line and Ethernet network cable connections

The company design and manufactures various types of modems and ADSL modems with built-in firewall and router.

The Nokia M1122 is a 4-port ADSL router that is known to have been sold in Europe and New Zealand in 2000-2002.

In the last half of 2002 the model was discontinued along with the rest of Nokia's ADSL router operations.

Netgear ADSL router

Premises with BT's business hub ( an ADSL broadband router aimed at small business premises ) can opt to enable BT Openzone functionality on their equipment ( allowing roaming Openzone customers to connect via a firewalled network ).

Included among the communications network IC products manufactured and provided by Realtek are: network interface controllers ( both the traditional 10 / 100M Ethernet controllers and the more advanced gigabit Ethernet controllers ), physical layer controllers ( PHYceivers ), network switch controllers, gateway controllers, wireless LAN ICs, as well as ADSL router controllers.

DrayTek released the Vigor2200USB router in the UK in 2002, a unique router for ADSL, the only router able to be connected to BT's newly launched USB-modem based ADSL service.

Products include transceiver and processor ICs for Ethernet and wireless LANs, cable modems, digital subscriber line ( DSL ), servers, home networking devices ( router, switches, port-concentrators ) and cellular phones ( GSM / GPRS / EDGE / W-CDMA ).

This is why even the modems became weatherproof, for example the new iDirect Evolution X1 outdoor satellite router, used by Lamit Company in such environments.