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RAD Remote LAN Access MBE
FEATURES of the RAD MBE
 | Remote access routing and bridging on link-by-link basis
 | IP and IPX routing
 | Bridge links transparently support all level 3 protocols
 | Backup capability for router and bridge links
 | BOOTP auto configuration for IP router links
 | Dial-up, leased line, DDS, ISDN, and Frame Relay services
 | 4-wire modem for campus and factory applications
 | Data rates up to 115.2 kbps async, 1.5 Mbps sync
 | Supports PPP, SLIP, CSLIP and Multilink PPP
 | STAC data compression (4:1)
 | Quick setup and configuration
 | Solid Firewall (session based) protection
 | Single IP address translation
 | PAP/CHAP security for PPP links
 | RADIUS billing and authentication support
 | Scripting tool
 | Protocol/address filtering
 | Connection on demand
 | Spoofing for RIP, SAP and IPX Keep Alive
 | SNMP and TELNET support
 | FLASH memory for software and parameter file downloading
 | Dual image FLASH |
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RAD MBE Family description
 | The MBE Family is part of the LAN RANger Series of Ethernet Remote
Access Routers that provide cost effective remote access connectivity
for SoHo (Small office Home office) applications. |
 | The MBE Family supports remote access routing and bridging for
connecting remote PCs or LANs to a central LAN over a wide variety of
WAN interfaces and services, including ISDN, Frame Relay, Leased
Line, dial up modems, and DDS. |
 | Routing and bridging are performed on a link-by-link basis. There are
no bridging or routing limitations on the central LAN. However,
additional bridges should not be connected to the remote LAN. |
 | Router links can operate opposite any PPP standard compliant
device, including third party routers and software based PPP dialers
(e.g., Windows 95). |
 | Bridge links are transparent to layer 3 protocols, such as NetBIOS and
DECNET. |
 | The Single IP address translation feature allows a small or
medium office LAN to connect to the Internet using a single, dynamically
or statically allocated IP address from the central access router. |
 | For router links, the IP parameters and the configuration file are
learned automatically from any BOOTP server via standard BOOTP
protocol. |
 | Transparent remote to remote forwarding enables direct data
transfer between links whether the links are bridge or router (see
Figure 1). |
 | The MBE family includes the following models:
- MBE10-1, single link router supporting a single remote
station for bridge links or full LAN segment for router links.
- MBE10-1D, dual link router supporting a single remote
station on each bridge link or a full LAN segment on each router link.
- MBE10-8, single link router supporting a remote Ethernet LAN
of up to 80 workstations on bridge links or a full LAN segment on router
links.
- MBE10-8D, dual link router supporting a remote Ethernet LAN
of up to 80 workstations on each bridge link or a full LAN segment on
each router link.
INTERFACES
 | Both the LAN and WAN link interfaces are modular, and accommodate
several standards. |
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 | WAN:
WAN link interface modules include:
- V.24/RS-232, which can be configured for asynchronous operation
over dial-up modem links. These links operate at data rates from 2.4
kbps to 115.2 kbps. Use of compression modems improves performance and
throughput of the MBEs.
- Digital interfaces (V.24/RS-232, V.35, X.21, RS-530 and V.36) for synchronous
leased lines at data rates up to 1.5 Mbps
- Built-in CSU/DSU for connection to leased lines operating at up to 56
kbps.
- An internal ISDN terminal adapter module. Two B channels are available
on the dual port module as well as one redundant link (sync/async). ISDN
switches supported include 5ESS, and DMS-100. The ETSI NT1 European
standard, and I430 are also supported.
- A built-in 4-wire, short range modem. This option permits
operation at data rates up to 768 kbps (See Figure 5, and Table 1). It
is suitable for campus or factory environments where either a single
station or a workgroup LAN requires connection to the LAN, beyond the
distance normally attainable over copper media. The 4 wire interface
model has an internal clock with selectable data rates from 16 kbps to
768 kbps according to the required range.
CONTROL
 | Quick setup and configuration is performed via terminal
emulator attached to control port or by using TELNET access into
the device over the LAN or WAN. |
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 | An SNMP agent provides in-band or out-of-band management by
RADview or any other standard SNMP management station. |
 | Software downloading is available via the control port, using
XMODEM, and via LAN or WAN using TFTP.
Parameter file downloading and uploading is available via LAN or
WAN using TFTP.
Product configurations and software are saved in FLASH memory.
Two versions of the software are stored for redundancy.
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 | An SNMP agent provides management by RADview or any other
standard SNMP management station.
SECURITY
 | An integral Solid Firewall protects an office LAN from
undesired entry from the Internet, using session based firewalling. |
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 | PAP/CHAP security is provided for users utilizing router links. |
 | Dialback over PPP to a station using a router link at a fixed
location is supported in Microsoft environments (e.g., opposite Windows
95). This adds security by verifying user identity and location. The
dialback feature helps reduce costs to mobile users. |
 | Undesired Access to the WEB RANger via TELNET or SNMP can be
blocked or password protected.
WAN ECONOMY WITH THE RAD MBE
 | Connection On Demand (COD) allows links to be connected or
disconnected according to time, traffic or management. COD may be
triggered based on user defined masks.
Spoofing is used to reduce WAN link up-time and traffic by
increasing the period between RIP, SAP, or IPX Keep Alive broadcasts.
Filters based on user definable masks improve WAN utilization
by ensuring that only necessary packets are transmitted over the WAN. To
ensure high performance and easy installation, a special hardware
filtering technique is used.
MISCELLANEOUS
 | MBE is supplied as a stand alone unit. Special hardware for mounting
either a single unit or two units side-by-side in a 19" rack, using
minimal rack space of 1U (1.75") in height, can be ordered
separately (see ORDERING) |
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Ordering the RAD MBE
MBE10-1/+/*
MBE10-8/+/*
Single link
MBE10-1D/+/*
MBE10-8D/+/*
Dual-link
MBE10-1D/$/+/*
MBE10-8D/$/+/*
Dual-link, over ISDN
+ Specify link interface:
(Note: for ISDN, this is the second interface.)
DDS for CSU/DSU
V24 for V.24/RS-232
V35 for V.35
V36 for V.36 or RS-449/RS-422
X21 for X.21
530 for RS-530
V35V24 for V.35/V.24
(MBE10-1D or MBE10-8D only)
(not valid for IBE options)
4W for 4-wire (built-in modem)
(not valid for IBE options)
* Specify LAN interface:
AUI for 10Base5
BNC for 10Base2
UTP for 10BaseT
$ Specify ISDN interface:
IBE for "S" interface
IBU for "U" interface
RM-19
Hardware for mounting one or two units in a 19" rack
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