AS400 TCP/IP
Now the problem to pass secret from your AS400 to a partner across internet without buying extra security Hardware will be solve with new IBM AS400 “V4R4”
With V4R4, it will add and change many function to support AS400 TCP/IP, such as
- Layer 2 tunneling protocol (L2TP) : for establishing point to point virtual link across internet.
- Secure Socket Layer (SSL) : for establishing encrypted interactive terminal session.
- IP SEC. (IP Security) : for support for public key encryption of L2TP link
- Internet Security Association Key Management protocol (ISAKMP) : for exchanging encryption keys safety across in-secure connection.
- TCP/IP Architecture change to enhance overall performance
- Improve SMTP (Simple Mail transfer Protocol), FTP and telnet more support and security.
Now I will explain in more detail about VPN.
VPN (Virtual Private Network)
VPN describes the use of Public, Insecure network to carry traffic that would be trusted only to private physical network.
VPN consist of virtual connection (Tunnels), between nodes in network. The tunnel carry data in encrypted form, so if has anyone intercepting data, it can’t read or modify data stream at all.
In previous version of IBM AS400 “V4R3” it’s support VPN component in a firewall-to-firewall connection using IPCS which require tunnel terminate at IPCS (at firewall). There are many disadvantage of this technology such as expensive, hard to maintain and inflexible.
So, in NEW IBM AS400 “V4R4” will change to use VPN connection in a “Host-to-Host” connection that let you create VPN tunnel directly between any AS400, so your data will completely protect from location to location.
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