ELSA Cable - Manual (Page 6)

Content
ELSA Cable Modem
VI
English
Security for your LAN............................................................................................ 30
Encryption ........................................................................................................ 31
TCP/IP packet filters ........................................................................................ 31
The hiding place—IP masquerading (NAT, PAT) ............................................ 31
IP routing ............................................................................................................... 32
The IP routing table.......................................................................................... 32
Dynamic routing with IP RIP ............................................................................ 34
Local routing .................................................................................................... 35
IP masquerading (NAT, PAT)............................................................................ 36
DNS forwarding ............................................................................................... 38
Bridging ............................................................................................................ 39
Automatic address administration with DHCP..................................................... 40
The DHCP client ............................................................................................... 41
The DHCP server .............................................................................................. 41
DHCP – 'on', 'off' or 'auto'?.............................................................................. 42
How are the addresses assigned?................................................................... 42
Technical basics .........................................................................................................47
Cable modem technology ..................................................................................... 47
Standards ......................................................................................................... 47
Access .............................................................................................................. 47
Registration in the cable network ................................................................... 48
Network technology.............................................................................................. 50
The network and its components .................................................................... 50
Connection modes ........................................................................................... 50
Kinds of networks ............................................................................................ 52
IP addressing......................................................................................................... 52
IP routing and hierarchical IP addressing ........................................................ 55
Expansion through local networks................................................................... 57
Appendix .......................................................................................................................63
Technical data ...................................................................................................... 63
Warranty conditions ............................................................................................. 65
Declaration of conformity ..................................................................................... 67
Description of the menu options ..............................................................................73
Status.................................................................................................................... 75
Status/Operating-time ..................................................................................... 76
Status/Current-time ......................................................................................... 76
Status/cable-statistics..................................................................................... 76
Status/LAN-statistics ...................................................................................... 77
Status/bridge statistics ................................................................................... 78
Status/TCP-IP-statistics ................................................................................... 79