Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!sdd.hp.com!hplabs!hpda!hpcupt1!hpindwa!raj From: raj@hpindwa.cup.hp.com (Rick Jones) Newsgroups: comp.dcom.sys.cisco Subject: Re: X.25 over TCP/IP ? Message-ID: <54680004@hpindwa.cup.hp.com> Date: 21 Mar 91 22:17:39 GMT References: <1637@aut.autelca.ascom.ch> Organization: Hewlett-Packard, Cupertino CA Lines: 40 >>Is this possible: >> >>- HP9000/835 (HP-UX 7.0) with X.25 >>- Route X.25 packets from HP, not over X.25 interface, but over TCP/IP >> to a Cisco router >>- The Cisco router routes the X.25 packets from TCP/IP down to native >> X.25 and into a public X.25 net... >> >>- The same backwards >> >>- If the scenario above works, is the Cisco router able to have >> X.121 subaddresses ? > ><> > I'm going to take a wild guess and say that you want to be able to have more than one system share the same subscription to the PDN??? > > First of all, to my knowledge HP does not allow for you to talk x.25 >out of a LAN interface speaking Ethernet/802.3. I do know of a x.25 >serial interface for the HP9000 series. If I am wrong, then HP must >have devised an encapsulation scheme for wrapping x.25 in a TCP/IP >packet. > While this is to my knowledge correct for the 9000's, the 3000/XL's do something like what is requested. The difference being: swap a DTC for the cisco, and a proprietary LAN protocol for the TCP/IP. Presto changeo, you have an X.25 'solution' ;-) where > 1 host can share the X.25 cards in the DTC(s). Everyone can do Level 3 access, and can run TCP/IP on top of it all... Of course, on the 3000/XL's, you can't do what the 9000's can - plug a serial line directly from the host into the net ;-) The current answer is: If you want level 3 from the 9K, you have at least 1 interface per host, and thus one subscription per host (??? X.25 charge policies fry my brain - this could be inaccurate) - ie no line sharing. Of course, you should feel free to submit any enhacement requests through the 'normal' means (you local HP rep types...)