| ADSL | Asymmetric Digital Subscriber Line |
| AMSIX | Amsterdam Internet Exchange |
| API | Application Programming Interface |
| AR | Access Router |
| ARP | Adres Resolution Protocol |
| ARPA | Advanced Research Projects Agency |
| AS | Autonomous System |
| ATM | Asynchronous Transfer Mode |
| BAR | Broadband Access Router |
| BGP | Border Gateway Protocol |
| BR | Border Router |
| BR | Border Router |
| BRAS | Broadband Remote Access Router |
| BSD | Berkeley Software Distribution |
| CBC | Cypher Block Chaining |
| CBC | Cypher Block Chaining |
| CIDR | Classless InterDomain Routing |
| CPE | Customer Premises Equipment |
| CR | Core Router |
| DECnet | Digital Equipment Corporation Network |
| DES | Data Encryption Standsard |
| DES | Data Encryption Standard |
| DHCP | Dynamic Host Configuration Protocol |
| DHCPv6 | Dynamic Host Configuration Protocol versie 6 |
| DNS | Domain Name System |
| DoD | Department of Defense |
| DSL | Digital Subscriber Line |
| DSLAM | Digital Subscriber Line Access Multiplexer |
| DSTM | Dual Stack Transition Mechanism |
| eBGP | Exterior BGP |
| ERS | Ethernet Routing Switch |
| ESP | Encrypted Security Payload |
| EUI-64 | Extended Unique Identifier - 64 bit |
| GRE | Generic Routing Encapsulation |
| HFC | Hybrid Fiber Coax |
| IAD | Integrated Access Device |
| IANA | Internet Assigned Numbers Authority |
| IAR | Internet (over Ethernet) Access Router |
| iBGP | interior BGP |
| ICMPv6 | Internet Controll Message Protocol versie 6 |
| ID | Identifier |
| IETF | Internet Engineering Task Force |
| IPng | Internet Protocol next generation |
| IPsec | Internet Protocol Security |
| IPv4 | Internet Protocol versie 4 |
| IPv6 | Internet Protocol versie 6 |
| ISATAP | Intra-Site Automatic Tunnel Addressing Protocol |
| ISIS | Intermediate System-to-Intermediate System |
| ISO | International Organization for Standardization |
| ISP | Internet Service Provider |
| LAN | Local Area Network |
| LIR | Local Internet Registry |
| MAC | Media Access Control |
| MBR | Media Border Router |
| MD-5 | Message Digest Algorithm 5 |
| MDF | Main Distribution Facility |
| MPLS | MultiProtocol Label Switching |
| MR | Measurement Router |
| MTU | Maximum Transmission Unit |
| MVNO | Mobile Virtual Network Operator |
| NAPT | Network Address Port Translation |
| NAT | Network Address Translation |
| NAT-PT | Network Address Translation - Protocol Translation |
| NCR | New Core Router |
| NDP | Neighbor Discovery Protocol |
| NGN | Next Generation Network |
| NIR | National Internet Registry |
| NLA-ID | Next-Level Aggregation Identifier |
| OS | Operating System |
| OSPF | Open Shortest Path First |
| OSS | Operational Support System |
| PC | Personal Computer |
| PDCA | Plan Do Check Act |
| PING | Packet InterNet Groper |
| PMTU | Path Maximum Transmission Unit |
| POP | Point Of Presence |
| QoS | Quality of Service |
| RFC | Request For Change |
| RFC | Request For Comment |
| RIPE | Regional IP Registry Europe |
| RIR | Regional Internet Registry |
| SA | Security Association |
| SAR | Service Access Router |
| SHA | Secure Hash Algorithm |
| SIDN | Stichting Internet Domeinregistratie Nederland |
| SIIT | Stateless IP/ICMP Translation Algorithm |
| SLA-ID | Site-Level Aggregation Identifier |
| SNMP | Simple Network Managment Protocol |
| TACACS | Terminal Access Controller Access-Control System |
| TCP | Transmission Control Protocol |
| TDI | Transparent Domain Identifiers |
| TLA-ID | Top-Level Aggregation Identifier |
| TRT | Transport Relay Translator |
| UDP | User Datagram Protocol |
| UPnP | Universal Plug and Play |
| URI | Uniform Resource Identifier |
| VLSM | Variable Length Subnet Masking |
| VOD | Video On Demand |
| VOIP | Voice Over Internet Protocol |
| VPN | Virtual Private Network |