Eirpac
Encyclopedia
EIRPAC is Ireland
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

's packet switched X.25
X.25
X.25 is an ITU-T standard protocol suite for packet switched wide area network communication. An X.25 WAN consists of packet-switching exchange nodes as the networking hardware, and leased lines, Plain old telephone service connections or ISDN connections as physical links...

 data network. It replaced Euronet in 1984. Eirpac uses the DNIC 2724. HEAnet
HEAnet
HEAnet is the Irish NREN; it provides high-speed Internet access to academic institutions in Ireland direct to European and USA networks...

 was first in operation via X.25 4.8Kb Eirpac connections back in 1985. By 1991 most Universities in Ireland used 64k Eirpac VPN connections. Today Eirpac is owned and operated by Eircom
Eircom
Eircom Group LTD is a telecommunications company in the Republic of Ireland, and a former state-owned incumbent. It is currently the largest telecommunications operator in the Republic of Ireland and operates primarily on the island of Ireland, with a point of presence in Great Britain.As Bord...

 but does not accept new applications for Eirpac: no reference is made on the products-offering on their website They began the process of migrating existing customers using more capable forms of telecommunications back in late April 2004.

In 2001 Eirpac had approximately 5,000 customers dialing in daily via switched virtual circuit's although those numbers have been declining rapidly. Eirpac is still an important element for data transfer in Ireland with numerous banks (automatic teller machines), telecoms switches, pager systems and other networks that utilise permanent virtual circuit's.

Connecting to Eirpac can be done using a simple AT
Hayes command set
The Hayes command set is a specific command-language originally developed for the Hayes Smartmodem 300 baud modem in 1981. The command set consists of a series of short text strings which combine together to produce complete commands for operations such as dialing, hanging up, and changing the...

compatible modem. The dial in number is 1511 + baud rate. So for example to connect at 28,800 bit/s would be ATDT 15112880. The user would then have to authenticate with their Eirpac NUI. The NUI (Network User Identification) consists of a name and password provided by Eircom.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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