Nokia M1112 manual Applications and features, Dynamic Host Configuration Protocol, ATM and ADSL

Applications and features

Application Layer Gateway functionality (ALG). M1112 has ALG for the following protocols/applications:

DICMP

DFTP

DH.323 including NetMeeting

DCUSeeMe

DPPTP

DIRC

DIPSEC ESP tunnel mode and IKE

Note, that most IPSEC implementations will fail when passed through NAPT. A typical reason is that the identification may fail if the identification is based on IP address. Also, only tunnel mode without Authentication Header (AH) works.

2.2.5Dynamic Host Configuration Protocol

M1112 can act as a Dynamic Host Configuration Protocol (DHCP) server for the PCs on the end-user home network. In this mode, M1112 can assign up to 253+253 consecutive addresses from two separate address ranges (that is, 253 consecutive addresses per address range) to the PCs on the home network. Two separate address ranges can be used if more than 253 addresses are required on the local subnet, if two non-contiguous ranges are needed or if an additional router with DHCP relay is used on the local network. M1112 can also act as a DHCP relay agent and relay the DHCP requests to an external DHCP server.

2.2.6ATM and ADSL

M1112 supports up to 8 simultaneous VCCs and supports UBR (Unspecified bit rate) traffic shaping on all VCCs. The maximum transmit rate on each VCC is the ADSL upstream capacity. If more than one VCC is transmitting simultaneously, the ADSL upstream capacity is temporarily shared between these VCCs. When one VCC is idle, the bandwidth is used by another VCC.

The ADSL transmission is based on the DMT line code. M1112 provides a DMT line rate up to 8 Mbit/s downstream and up to 800 kbit/s upstream. The DMT transceiver is rate adaptive and capable of providing faster rates over short distances or slower rates over long distances. The transceiver adapts itself to the line conditions.

M1112 is compatible with ETSI 101 388.

C33907001SE_00 E Copyright Nokia Networks Oy 2-9