Lancom Systems LCOS 3.50

LANCOM Reference Manual LCOS 3.50  Chapter 8: Firewall

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Firewall

Some LANCOM models support this structure by a separate LAN interface onlyused for the DMZ. Looking at the path of data through the LANCOM, then thefunction of the Firewall for shielding the LAN against the DMZ becomes visi-ble.

Internet

DMZ Local network

FTP server

Web server

Firewall / IDS / DoS / QoS

IP router

LAN bridge with “isolated mode”

Virtual LANs (VLAN)

N:N mapping

ISDN

ADSL

DSL

LAN / Switch

WLAN-1

DMZ

DSLoL

Configuration &

management:

WEBconfig, Telnet,

VPN / PPTP

DHCP client / PPP

IP module: NetBIOS, DNS,

DHCP server, RADIUS, RIP,

NTP, SNMP, SYSLOG, SMTP

IPX router

LAN interfaces

WAN interfaces

IP masquerading

VPN services

LANCAPI

connection via

LAN/Switch

WLAN-2

WEP

Filter

IPX over PPTP/

VPN