ELSA Cable - Manual (Page 100)

Description of the menu options
ELSA MicroLink Cable
R92
Operating The TCP/IP module of the router may be activated or deactivated here. In the default
configuration, the TCP/IP module is activated.
Configuration via TCP/IP using Telnet and the IP router can only be used if the TCP/IP
module is activated.
Cable IP address The IP address for the device as transmitted by the headend during the registration is
displayed here. The default address on delivery is '0.0.0.0'.
This IP address is used by the cable modem for the connection to the provider's (cable
network operator) network.
IP netmask The network mask belonging to the IP address must be entered here. The default setting
is 255.255.255.0 (class C network). A network mask of 255.255.255.255 means that there
is only one computer in this network (the router itself). This setting (an IP address
registered in the Internet with a fully assigned network mask) can be used for
masquerading via a raw IP access. With such an access an IP address is not assigned to
the router by a PPP negotiation, but it must have a fixed IP address registered in the
Internet.
Cable-IP-
netmask The netmask associated with the IP address as transmitted by the headend during the
registration is displayed here.
LAN-IP-
address The LAN-side IP address for the device can be entered here. The second IP address
enables the device to be used as a router for two logical IP networks and also this
address has a specific meaning with the use of IP masquerading:
In this case, all computers that are in the network linked by the LAN-side IP address and
IP netmask are “hidden” behind the address assigned by the provider (or the cable IP
address).
LAN-IP-netmask The network mask belonging to the IP address of the local network must be entered here.
The default setting is 255.255.255.0 (class C network).
If no LAN-IP address has yet been specified, the device responds to a default IP address,
the first three digits of which are identical to the first three digits of the sending device
XXX.XXX.XXX.YYY. The device can then be reached by dialing the IP address
XXX.XXX.XXX.254.
LAN-IP-mask LAN's matching IP network mask
Access-list Restricts access to internal functions via TCP/IP.
Table-ARP ARP table for mapping an IP address onto a MAC address
ARP-aging-min. Dwell time for entries in the ARP table
TCP-aging-min. Time limit for configuration connections that are inactive
TCP-max.-conn. Max. number of simultaneous configuration connections to the
ELSA MicroLink Cable
/TCP-IP-module TCP/IP module settings