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LANCOM Reference Manual LCOS 3.50 ̈ Chapter 8: Firewall
136
Firewall
Some LANCOM models support this structure by a separate LAN interface only
used for the DMZ. Looking at the path of data through the LANCOM, then the
function 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
WEP
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IPX over PPTP/
VPN