Lancom 821+ Manual page 14

IP masquerading (NAT, PAT) to conceal individual LAN workstations
behind a single public IP address.
Stateful Inspection Firewall
Firewall filter for blocking individual IP addresses, protocols and ports
MAC address filter regulates, for example, LAN-workstation access to the
IP routing function
Protection of the configuration from brute-force attacks.
Configuration
Configuration with LANconfig or with web browser, additionally terminal
mode for Telnet or other terminal programs, SNMP interface and TFTP
server function.
Remote configuration via ISDN (with ISDN-PPP connections e.g. via Win-
dows network and dial-up connections)
Serial configuration interface
Callback function with PPP authentication mechanisms for restriction to
fixed ISDN telephone numbers
FirmSafe with firmware versions for absolutely secure software upgrades
Optional software extensions
LANCOM VPN Option with 25 active tunnels for protection of network
couplings
Optional hardware extensions
LANCOM Modem Adapter Kit for connection of analog or GSM modems
to the serial interface
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Chapter 1: Introduction
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔
✔ ✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
13