Lancom Systems 1781A-4G 62609 Benutzerhandbuch

Packets sent in response to LCOS service requests (e.g. for Telnet, SSH, SNTP, SMTP, HTTP(S), SNMP, etc.) via Ethernet can be routed directly to the
requesting station (default) or to a target determined by ARP lookup

ARP lookup

Automatic discovery of network topology in layer 2 networks (Link Layer Discover Protocol).

LLDP

COM-port server for DIN and USB interfaces. For multiple serial devices connected to it, the server also manages its own virtual COM ports via
Telnet (RFC 2217) for remote maintenance (works with popular virtual COM-port drivers compliant with RFC 2217). Switchable newline conversion
and alternative binary mode. TCP keepalive according to RFC 1122 with configurable keepalive interval, retransmission timeout and retries

COM port forwarding

Host port for connecting USB printers via RAW-IP and LPD; bi-directional data exchange is possible

Print server (USB 2.0)

ARP, proxy ARP, BOOTP, LANCAPI, DHCP, DNS, HTTP, HTTPS, IP, ICMP, NTP/SNTP, NetBIOS, PPPoE (server), RADIUS, RIP-1, RIP-2, RTP, SIP, SNMP,
TCP, TFTP, UDP, VRRP

IP

NDP, stateless address autoconfiguration (SLAAC), stateful address autoconfiguration (with DHCPv6), router advertisements, ICMPv6, DHCPv6,
DNS, HTTP, HTTPS, PPPoE, TCP, UDP

IPv6

IPv4/IPv6 dual stack

Dual Stack

WEBconfig, HTTP, HTTPS, SSH, Telnet, DNS, TFTP, Firewall

IPv6 compatible LCOS applications

PPPoE, PPPoA, IPoA, Multi-PPPoE, ML-PPP, PPTP (PAC or PNS) and IPoE (with or without DHCP), RIP-1, RIP-2, VLAN

ADSL, Ethernet

1TR6, DSS1 (Euro-ISDN), PPP, X75, HDLC, ML-PPP, V.110/GSM/HSCSD

ISDN

IPv6 over PPP (IPv6 and IPv4/IPv6 dual stack session), IPoE (autoconfiguration, DHCPv6 or static)

IPv6

6to4, 6in4, 6rd (static and via DHCP)

Tunneling protocols (IPv4/IPv6)

ADSL1, ADSL2 or ADSL2+ with internal ADSL2+ modem

xDSL

ADSL1, ADSL2 or ADSL2+ with external ADSL2+ modem

xDSL (ext. modem)

GPRS, Edge, UMTS, HSPA or LTE with internal mobile modem

UMTS/LTE

ISDN data or voice usage via internal ISDN interface

ISDN

Analog or GPRS operation via serial interface

Analog/GPRS (ext. modem)

1

Compliant to: ADSL2+ as per ITU G.992.5 Annex A/Annex B/Annex J/Annex M with DPBO, ADSL2 as per ITU G.992.3 Annex A/Annex B/Annex
J/Annex M, ADSL as per ITU.G.992.1 Annex A/Annex B

1

Supports one virtual ATM circuit (VPI, VCI pair) at a time

1

Compliant to: Deutsche Telekom U-R2 (1TR112)

WAN: ADSL2+

4 individual 10/100/1000 Mbps Ethernet ports; up to 3 ports can be switched as additional WAN ports with load balancing. Ethernet ports can be
electrically disabled within LCOS configuration. The ports support energy saving according to IEEE 802.3az

Ethernet ports

Each Ethernet port can be freely configured (LAN, DMZ, WAN, monitor port, off). LAN ports can be operated as a switch or separately. Additionally,
external DSL modems or termination routers can be operated as a WAN port with load balancing and policy-based routing. DMZ ports can be
operated with their own IP address range without NAT

Port configuration

USB 2.0 hi-speed host port for connecting USB printers (USB print server), serial devices (COM port server), USB data storage (FAT file system);
bi-directional data exchange is possible

USB 2.0 host port

ISDN BRI port (S0 bus)

ISDN

Serial configuration interface / COM port (8 pin Mini-DIN): 9,600 - 115,000 baud, suitable for optional connection of analog/GPRS modems. Supports
internal COM port server and allows for transparent asynchronous transmission of serial data via TCP

Serial interface

Two SMA antenna connectors for external LTE antennas (Ant 1, Ant 2)

External antenna connectors

LANCOM 1781A-4G

Features as of: LCOS 8.80