Using the Router, the mainframe sees only native SNA LU6.2 traffic, does
not require TCP/IP to be installed and does not incur any TCP/IP overhead.
Unlike a direct TCP/IP connection, the Router establishes a normal mainframe
security context via the security facilities built into LU6.2. PC applications
need only a TCP/IP connection to the APPX Router and do not need expensive
and difficult to manage terminal emulators or LU6.2 stacks.
The APPX Router lives between the mainframe's SNA network and the TCP/IP
network, accepting session requests from the PC clients on the TCP/IP
network, and if authorized, establishing LU6.2 sessions to the mainframe
on behalf of the clients.
Based on the source of the session request, the Router will add a user
ID and optional password to the LU6.2 session "Allocate", which is then
used by the mainframe's operating system (via RACF or CA-ACF2) to establish
a security context in which the transaction will run. At the system administrator's
discretion, authorization and security context data can be moved to
the client for selected users.
The Router handles all TCP/IP communications for the mainframe APPX applications,
and can provide access to intranet, extranet and Internet users, applying
different security criteria for each. The APPX Router can encrypt and authenticate incoming sessions, allowing secure access over the Internet. The APPX Router is designed to work
in conjunction with your existing firewall in order to provide service
to extranet and Internet users.
Simple, High Speed Access
Using Microsoft's Host Integration Server (formerly SNA Server) or IBM's Personal Communications running
on Windows NT, the Router provides high speed access to large numbers
of clients. The Router is highly scaleable and can take advantage of
the high speed mainframe connections supported by Host Integration Server, yet is easy
to implement even in the smallest mainframe environment. The Router is
simple to configure, provides extensive diagnostic and testing facilities,
and supports remote management.
The APPX Router supports existing PC and mainframe APPX applications
with few, if any, changes. New applications can be designed from the outset
to take full advantage of the Router while still running over the many
other communications links that Across the Boards supports. The APPX Router
is a simple and cost effective way to provide high performance, reliability
and security for users and developers of APPX applications.