Lancom Systems 1781A 62601 Manuale Utente

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Content Filter (optional)
Timeframes, blacklists, whitelists and categories are collected into profiles that can be activated separately for content-filter actions. A default
profile with standard settings blocks racist, pornographic, criminal, and extremist content as well as anonymous proxies, weapons/military, drugs,
SPAM and malware
Profiles
Timeframes can be flexibly defined for control over filtering depending on the time of day or weekday, e.g. to relax controls during break times for
private surfing
Time frames
Activation of the content filter by selecting the required firewall profile that contains content-filter actions. Firewall rules enable the flexible use of
your own profiles for different clients, networks or connections to certain servers
Flexible firewall action
Response pages displayed by the content filter in case of blocked sites, errors or overrides can be custom designed. Variables enable the inclusion
of current information such as the category, URL, and rating-server categorization. Response pages can be issued in any language depending on
the language set in the user's web browser
Individual display pages (for blocked, error,
override)
As an alternative to displaying the device's own internal response pages to blockings, errors or overrides, you can redirect to external web servers
Redirection to external pages
Automatic notification of license expiry by e-mail, LANmonitor, SYSLOG or SNMP trap. Activation of license renewal at any time before expiry of
the current license (the new licensing period starts immediately after expiry of the current license)
License management
Display of the number of checked and blocked web pages by category in LANmonitor. Logging of all content-filter events in LANmonitor; log file
created daily, weekly or monthly. Hit list of the most frequently called pages and rating results. Analysis of the connection properties; minimum,
maximum and average rating-server response time
Statistics
Messaging in case of content-filter events optionally by e-mail, SNMP, SYSLOG or LANmonitor
Notifications
Wizard sets up the content filters for a range of typical scenarios in a few simple steps, including the creation of the necessary firewall rules with
the corresponding action
Wizard for typical configurations
Simultaneous checking of HTTP(S) traffic for a maximum of 100 different IP addresses in the LAN
Max. users
Categorization is maintained by IBM. Neither IBM or LANCOM can guarantee full accuracy of the categorization.
*) Note
The Override function is only available for HTTP websites.
**) Note
VoIP
The SIP ALG (Application Layer Gateway) acts as a proxy for SIP communication. For SIP calls the ALG opens the necessary ports on the firewall for
the corresponding media packets. By using automatic address translation for devices inside the LAN, the use of STUN is no longer needed.
SIP ALG
Routing functions
IP and NetBIOS/IP multi-protocol router
Router
Separate processing of 16 contexts due to virtualization of the routers. Mapping to VLANs and complete independent management and configuration
of IP networks in the device, i.e. individual settings for DHCP, DNS, Firewalling, QoS, VLAN, Routing etc. Automatic learning of routing tags for
ARF contexts from the routing table
Advanced Routing and Forwarding
HTTP and HTTPS server for configuration by web interface
HTTP
DNS client, DNS server, DNS relay, DNS proxy and dynamic DNS client
DNS
DHCP client, DHCP relay and DHCP server with autodetection. Cluster of several LANCOM DHCP servers per context (ARF network) enables caching
of all DNS assignments at each router. DHCP forwarding to multiple (redundant) DHCP servers
DHCP
NetBIOS/IP proxy
NetBIOS
NTP client and SNTP server, automatic adjustment for daylight-saving time
NTP
Policy-based routing based on routing tags. Based on firewall rules, certain data types are marked for specific routing, e.g. to particular remote
sites or lines
Policy-based routing
Dynamic routing with RIPv2. Learning and propagating routes; separate settings for LAN and WAN. Extended RIPv2 including HopCount, Output
Delay, Poisoned Reverse, Triggered Update for LAN (acc. to RFC 2453) and WAN (acc. to RFC 2091) as well as filter options for propagation of
routes. Definition of RIP sources with wildcards
Dynamic routing
DHCPv6 client, DHCPv6 server, DHCPv6 relay, stateless- and stateful mode, IPv6 address (IA_NA), prefix delegation (IA_PD), DHCPv6 reconfigure
(server and client)
DHCPv6
Layer 2 functions
VLAN ID definable per interface and routing context (4,094 IDs) IEEE 802.1q
VLAN
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
LANCOM 1781A
Features as of: LCOS 9.00