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comp.protocols.ppp part8 of 8 of frequently wanted information

This document contains information about the Internet Point-to-Point Protocol, including a bibliography, a list of public domain and commercial software and hardware implementations, a section on configuration hints and a list of frequently asked questions and answers on them. It should be read by anybody interested in connecting to Internet
Archive-name: ppp-faq/part8
Version: $Revision: 3.19 $
Last-modified: $Date: 1996/07/08 18:10:09 $

                                                               PPP hardware
                              8. PPP HARDWARE
   Before even thinking of reading this document, refer to the disclaimer
   in part 1 of the "frequently asked questions".
8.1 Hardware that does async PPP

   [Started by: (Edward Vielmetti) and heavily edited, to
   include  information from the net, by i.s.] This is an INCOMPLETE list
   of hardware that supports async PPP, in the form of a terminal server or
   terminal server / router combination.
  Vendor                  Digital Equipment Corporation
                          Phone: +1-800-DIGITAL (+1-800-344-4825)
   SELF-DESCRIPTION          Date: Wed, 07 Sep 94 13:06:19 EDT   From:
                         Jesse Walker <>
    Digital Equipment Corporation's DECserver family of Network Access
                         Servers support IP, IPX, and AppleTalk over PPP,
                         with   interoperability demonstrated with all the
                         commonly available client   implementations for
                         all three protocols. The DECserver family
                         includes the DECserver 90M, 90TL, 700, and 900TM.
                         The 90M and 90TL   are 8 asynch line servers,
                         supporting speeds up 57.6 Kbps. The 700   comes in
                         two models: an 8 asynch line version using DB25
                         connectors   that support full modem control, and
                         a 16 asynch line model. The 900   is a 32 asynch
                         line server. The 700 and 900 class machines
                         support   speeds up to 115.2 Kbps. All work well
                         with any Hayes compatible   modem. All except the
                         90TL have a FLASH RAM option, or can be loaded
                         either via BOOTP or MOP.
    For more information about DECserver Network Access Server, contact the
                           Digital Technical Consulting Center at
                         1-800-DIGITAL (1-800-344-4825) and   press "1" to
                         order or "2" to speak with a technical consultant.
  Telebit                 Phone: +1 800 TELEBIT
                          ftp information from
   SELF-DESCRIPTION          Date: Mon, 12 Sep 94 09:57:58 PDT    From:
    The NetBlazer supports 24 async lines.  An individual line can be   run
                         at 115.2Kbps.  A benchmark by LANQUEST showed the
                         NetBlazer   could run PPP on 24 async lines at
                         38.4Kbps.  I don't know of any   customers who run
                         exclusively PPP on 24 lines, but I know of several
                           that run mixtures of SLIP and PPP on 24 lines.
   OPINION:                  From: (Brian J. Smith)
                         Date: Fri, 27 Nov 92 23:35:18 GMT
    A NetBlazer works flawlessly for remote site PPP/SLIP links.  As a term
                            server it doesn't fit the bill.  And a bit
  Vendor                  Livingston Enterprises, Inc: +1 510 426 0770
                          ftp information from
   SELF-DESCRIPTION       ... have 10-, 20- and 30-port configurations.
                         List prices   ranging from ~US$2.7K to ~US$3.8K.
                         Contact <>   for more

- Xylogics MicroAnnex XL        (8-16 ports - release 9.2 firmware)
- Xylogics Annex 3              (8-64 ports - release 9.2 firmware)
(up to 57600 bps)
- Xylogics Remote Annex 2000    (8 or 16 ports, 486-class processor)
- Xylogics Remote Annex 4000    (16 to 72 ports, 2 or 3 486's)
(up to 115200 bps)
- Xylogics Remote Annex 6100    (1 T1 CSU, up to 24 V34 modems, 2 486's)
- Xylogics Remote Annex 6300    (1 T1 or E1 PRI line, up to 32 V.34
                                 modems, 2 486DX's, R13.0 software)

  SELF-DESCRIPTION         From: (James Carlson) Date:
                         Fri, 30 Jul 1993 14:28:40 EDT
  Current version has IPCP and PAP. We don't have a sync PPP version yet,
                         mostly because we don't support sync serial yet.
                         That is scheduled for the R9.3 release, along with
                         ATCP, IPXCP and CHAP.
  We have had async PPP since our R7.0 release in October 1992 for our
                         Annex 3 and Micro Annex XL platforms.  PPP is not
                         supported on the (now obsolete) Annex 2 nor on the
                         Micro Annex ELS.
  The Annex 3 can be customer-upgraded from 8 to 64 async serial lines,
                         with full modem controls on each line, and two to
                         three i376 processors.  (The i376 is an embedded
                         version of the 80386 which does not have an MMU.)
                         The motherboard has one i376 and each serial card
                         (maximum two) has one.  Packet routing and
                         user-level functions are handled on the
                         motherboard, while framing and PPP/SLIP link-level
                         processing are done on the serial cards.
  The Remote Annex has the same architecture, but with a TI486SLC2
                         processor instead of the 80376.  It's about twice
                         the speed.
  The Remote Annex 6100 ... contains a T1 CSU, a channel bank, up to 24
                         V.34 Microcom modems, and a high- performance
                         terminal and communications server with two 32-bit
                         80486 processors.  PPP with IPCP, IPXCP, and ATCP
                         NCP protocols, and PAP and CHAP security are
  [The Remote Annex 6300 ...] does async PPP over V.34 dial-up and over
                         V.120 ISDN TA dial-up, and does sync PPP over sync
                         (56 or 64Kbps) dial-up.  It also supports the LCP
                         options over sync necessary to allow async-to-sync
                         PPP dial-up converters (like the ZyXEL 2864 ISDN
                         TA) to work.
   OPINION                   From: (Brian J. Smith)
                         Date: Fri, 27 Nov 92 23:35:18 GMT
    I have been *VERY* happy with my Xylogics terminal servers I have to
                         Annex   II's and a Annex 3.  They were designed
                         for the Unix type person, and take   2 mins to get
                         working on the network.  Port configuration will
                         take longer,   but normally you only have a few
                         sets of configurations "modem dialin high   speed"
                         etc.  Two thumbs up to this company, now if they
                         didn't cost so   much. :) :)
  8.1.6 DATABILITY VCP 200/300 ( ??? )
  Opinion                    From: (Brian J. Smith)
                         Date: Fri, 27 Nov 92 23:35:18 GMT
    I tested one of these, they come in 8-16 port configurations, a TCP or
                         LAT or   TCP/LAT version.  Very VMS like, I would
                         guess a off spring of DECservers.     Cheaper than
                         the Xylogics in Price.  Didn't fit my feel due to
                         the VMSish   help and commands.
  8.1.7 3COM CS/2100 (10 LINES MAX)
   [Was mentioned in a posting of Peter Galbavy, summarizing suggestions
   other ppl. made to him about ppp-capable terminal servers. i.s.]
  Self-Description        "The IntelliServer is a high-performance,
                         expandable, TCP/IP terminal server that supports

Some features include -
High performance MIPS R3000 RISC processor at 20 mips.
Expandable from 16 to 64 serial ports.
Baud rates up 115.2K baud.
Full modem control.
LCD panel with diagnostics and monitoring features.
Supports Unix syslog facility.
Shell and menu interface.
Up to 8 virtual terminals per serial port.
Several options to support printers.
Network loadable kernels with bootp, tftp.
Demand dial ppp and slip.
Firewall support using ip filtering.
Ports can be shared between logins and ppp/slip.
Remote administration using telnet.
Some commands - whodo, ps, route, tip, netstat, arp,
ping, rlogin, telnet, route, etc...

  EMAIL         ,
   Phone                  +1 404 475 2725
   FAX                    sales +1 404 664 1510, support +1 404 664 1110
   ftp server   
   WWW server   
8.2 Hardware that supports sync PPP

Newsgroups: comp.protocols.ppp
Original-From: (Edward Vielmetti), but heavily edited by i.s.

Note that sync PPP is rather well established and it's not surprising
to see lots of vendors using it as their only sync serial line
protocol.  Various folks do various of the configuration options,
anywhere from a full implementation to very bare bones.

The price point is arbitrary.  These are list prices for the cheapest
box that has at least 1 sync PPP port that runs at 56 kb/sec plus one
ethernet.  Prices approximate, your milage may vary, contact your
vendor for details.

- Cisco

- Telebit Netblazer
  Phone: +1 800 TELEBIT

  NS2-1ESN + SYN35      two EIA-232 SYNC ports and two V.35 sync ports

  NB40 + 2 * SYN232 + SYN35 + SYN530 + SYN449   total of 10 sync ports
                (4 EIA-232, 2 V.35 ports, 2 EIA-530 ports, 2 EIA-422/449)


  Date: Tue, 3 Aug 93 23:55:49 -0700
  From: (Charlie Slater)

  As of this February (93), the NetBlazer/40 supports up to 10 sync ports.
  All can be run at 128Kbps and several can be run at 2Mbps (I don't have
  any field or independent test data on how many can be run at 2Mbps, but I
  think that the answer is at least 2).

- Livingston
  IR-4          1 ethernet + 4 56K +  1 RS-232

- Morning Star SNAPlink
  SnapLink      SCSI-attached serial interface for Unix systems
                1 T1 + 2 56K, RS-232 or RS-449

   HDLC driver for sun4c ttya and ttyb included with PPP software. Works
   only with SunOS <= 4.0.3c. Morning Star  "haven't been able to   extract
   the information from Sun that we need to make it work under   SunOS
   4.1.* or Solaris 2.*.
     The HDLC driver works on NeXTs under NeXTStep 2.[12], but because of
   NeXTStep's interrupt structure, we can only get it up to 19200 sync.
     It's also available from  It started as   something
   from one of Torben Nielsen <torben@Hawaii.Edu>'s   grad students, and
   we're required to pass along any changes we make   to it.  We hope that
   if someone gets it working under 4.1.*, they'll   be nice enough to pass
   their changes along too."

- Imatek

Vendor:  Imatek
Product: OnRamp DSU-Router

Description: Low-Cost, Ethernet-to-56Kbps Sync, Access Router
(with DSU/CSU, $1195!)

Base unit includes a 32-character Liquid Crystal Display (LCD),
a data entry keypad, Twisted Pair (UTP) and DB15 (AUI) Ethernet
connectors.  Front-panel menus configure addresses, routes,
netmasks, etc.  (terminal.)

Sync options include integrated DSU/CSU, V.35, or RS-232.

Dimensions: 9.5" x 7.5" x 4".

Price List
(includes IP routing software with support for PPP and Frame Relay)

Model                           Cost
Router w/ Synchronous RS-232    $995
Router w/ Synchronous V.35      1195
Router w/ 56Kbps DSU/CSU        1195

Network Management SW Option
(RIP, SNMP, Security Filters)    200

Please direct questions to:
                            408.244.8864  (Voice or FAX)

  Self-Description        Software Forge Ltd (part of the Racal-Airtech
                         group in the UK) have a sync. comms card for a PC
                         that can run PPP and X.25 over leased line, PSTN
                         dial-up and ISDN.  Standard interfaces are
                         provided (Packet Driver and ODI).  These actually
                         emulate an Ethernet interface, so a vast range of
                         third-party protocol stacks (IP and IPX) can be
                         supported.  Software Forge can also provide an IP
                         Router based on the same card.
  N.B. - this is a _sync_ comms card, ie it can drive ISDN at the full 64K.
  Channel aggregation is also supported (RFC 1717 - "PPP Multilink").
   Contact                Robin Maidment, Software Forge (Racal-Airtech
                         group) email: phone:
                         +44 (0)1734 312477 fax:     +44 (0)1734 311301
  Self-description       The GlobeTrotter60 is a low-cost, 1LANx1WAN full
                         function router that       supports Synchronous
                         and Asynchronous PPP for under 800U$.  It runs
                           routing software that has over 1200 man-years of
                         development work, and       provides full function
                         IP routing.
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