Take advantage of the functions provided by the suite of TCP/IP protocols and many applications that run on IBM i.
IBM i offers robust support for TCP/IP, the protocol of the Internet. With the integrated TCP/IP capabilities of IBM i, users can link to networks throughout the world.
The use of TCP/IP is pervasive in the current marketplace for multivendor interconnected networks. An example of this marketplace dominance is the international collection of networks known as the Internet. TCP/IP ties all of the Internet's individual networks together so that any individual user can reach systems anywhere else in the Internet. TCP/IP allows all nodes in the Internet to communicate as if they were on the same physical network, regardless of their specific hardware or software architecture. In this way, TCP/IP provides interoperability.
TCP/IP is an international set of protocols, standardized by the Internet Architecture Board. The document that provides the standard for a particular protocol or function is called a Request for Comment (RFC). Over 2000 RFCs are available today.
Features at a glance
TCP/IP on IBM i capabilities (integrated into IBM i at no additional charge) include:
IBM i supports the latest IP protocol, IP version 6. IPv6 has many new features that make networking more safe and reliable. Its larger address format expands the address space from around 4 billion IP address with IPv4 to over 340 undecillion (or 3.40282367 × 1038) addresses – making it the answer to the Internet's growing-concerns.
IPv6 supports and updates most IPv4 features while maintaining backwards compatibility to ensure functionality of current applications.
- Application protocols
The TCP/IP protocols include standards for many common applications. Some TCP/IP applications, such as FTP (file transfer protocol) and TELNET (terminal emulation), are commonly known. Others are newer and perhaps less familiar. Still others are intended primarily to facilitate network administration. This topic provides an overview of the TCP/IP applications that are included with TCP/IP on IBM i support.
- Bootstrap Protocol (BOOTP)
- Distributed Data Management (DDM)
- Distributed Relational Database Architecture (DRDA)
- Domain Name Server (DNS)
- Dynamic Host Configuration Protocol (DHCP)
- Fast Response Cache Accelerator (FRCA)
- File Transfer Protocol (FTP)
- IBM HTTP Server powered by Apache
- Post Office Protocol (POP) server
- Quality of Service (QoS)
- REXEC client (via the Run Remote Command (RUNRMTCMD) command)
- RouteD - Routing Information Protocol (RIP) Version 1 and Version 2
- Simple Mail Transfer Protocol (SMTP)
- Simple Network Time Protocol (SNTP)
Interface Type Supported releases Supports IPv6? Distributed data interface (DDI) (fiber or shielded twisted pair) network 6.1, 7.1 No Ethernet 6.1, 7.1, 7.2 Yes Frame relay network 6.1, 7.1 No IBM token-ring network 6.1, 7.1 No OptiConnect 6.1, 7.1 No Serial support (PPP) 6.1, 7.1, 7.2 Yes Virtual Ethernet 6.1, 7.1, 7.2 Yes Virtual OptiConnect 6.1, 7.1, 7.2 No X.25 (PVC and SVC) 6.1, 7.1 No
- Communications protocols
System i 400 TCP/IP supports a full range of communications protocols, including:
- Network Address Translation (NAT)
- Point-to-point protocol (PPP)
- Point-to-point protocol over Ethernet (PPPoE)