Lancom Systems 821 Benutzerhandbuch

LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN

75

Transfer rates
(maximum)

LAN

100 Mbit/s, full-duplex mode

WAN

Downstream 8 Mbit/s, upstream 800 kbit/s

ATM

Transport

Up to 8 ATM AAL-5 PVCs

OAM

ATM-F4 and F5-Loop-Back

Security

PAP, CHAP and MS-CHAP as PPP authentication mechanisms, password-
protected configuration access for each interface, access control list (IP, 
MAC and protocol filter) for configuration access and LANCAPI, ISDN 
caller ID list.  FirmSafe mit 2 Firmware-Versionen für absolut sichere 
Software-Upgrades. FirmSafe with 2 firmware versions for absolute 
secure software upgrades.

Intrusion detection (IP spoofing, Log-in attempts, portscans), denial-of-
service protection (fragmentation error, SYN flooding, automatic closing 
of ports/connections). DNS hitlists as well as wildcard filter (URL block-
ing). High availability by ISDN dial-backup for Internet access. Alerting 
by email, SNMP traps and SYSLOG. 

Firewall 

Stateful packet inspection, IP packet filter with port ranges; masking (NAT/PAT) of TCP, UDP, ICMP, 
FTP, PPTP, H.323,Net meeting, IRC and IPSec; DNS forwarding; inverse masking for IP services out of 
the intranet as e.g. web server; support of 2 local networks (LAN plus DMZ); DMZ with own IP 
address range without NA ; IP-QoS and bandwidth management / prioritisation, e.g. for VoIP

Management

LANtools (professional management software for Windows), WEBconfig (HTTP / HTTPS), Telnet, SSH, 
TFTP, SNMP V2 (MIB II, 802.11, 802.1D, 802.3, private MIB), RADIUS, syslog 
remote maintenance via ISDN, DynDNS. Internal SYSLOG buffer. Up to 16 administrators with indi-
vidual access rights.
outband interface: command line interface

Housing

210 x 143 x 45 mm (W x H x D), rugged plastic case, connectors on the 
rear side, stackable, provision for wall mounting 

Standards

EU (CE certification: EN 55022, EN 55024, EN 60950)

Environment / 
temperature 
range

Temperature range 0°C to + 40°C at 80% max. 
humidity (non condensing)

Temperature range 
0°C to +55°C at 80% 
max. humidity (non 
condensing)