Networking and proxies ports
Overview
Open proxies and misconfigured network services are abused for anonymisation and amplification. Restrict them to known clients and monitor outbound traffic.
Ports in this category31
Range coveredAll registry ranges
All Networking and proxies port numbers
Every port below is assigned to this category in the registry or by a widely used convention. Open a port for its check and block commands, risk rating and troubleshooting notes.
| Port | Service | Transport | Risk | Description |
|---|---|---|---|---|
| 67 | BOOTPS | TCP / UDP | Standard/Low | Bootstrap Protocol Server |
| 68 | BOOTPC | TCP / UDP | Standard/Low | Bootstrap Protocol Client |
| 159 | NSS-ROUTING | TCP / UDP | Standard/Low | NSS-Routing |
| 179 | BGP | TCP / UDP / SCTP | Standard/Low | Border Gateway Protocol |
| 201 | AT-RTMP | TCP / UDP | Standard/Low | AppleTalk Routing Maintenance |
| 387 | AURP | TCP / UDP | Standard/Low | Appletalk Update-Based Routing Pro. |
| 470 | SCX-PROXY | TCP / UDP | Standard/Low | scx-proxy |
| 520 | ROUTER | TCP / UDP | Standard/Low | local routing process (on site); uses variant of Xerox NS routing information protocol - RIP |
| 546 | DHCPV6-CLIENT | TCP / UDP | Standard/Low | DHCPv6 Client |
| 547 | DHCPV6-SERVER | TCP / UDP | Standard/Low | DHCPv6 Server |
| 647 | DHCP-FAILOVER | TCP / UDP | Standard/Low | DHCP Failover |
| 691 | MSEXCH-ROUTING | TCP / UDP | Standard/Low | MS Exchange Routing |
| 847 | DHCP-FAILOVER2 | TCP / UDP | Standard/Low | dhcp-failover 2 |
| 914 | RIFT-LIES | UDP | Standard/Low | Routing in Fat Trees Link Information Element |
| 915 | RIFT-TIES | UDP | Standard/Low | Routing in Fat Trees Topology Information Element |
| 1080 | SOCKS | TCP / UDP | Medium | Socks |
| 3043 | BRP | TCP / UDP | Standard/Low | Broadcast Routing Protocol |
| 3128 | NDL-AAS | TCP / UDP | Medium | Active API Server Port |
| 3318 | SSRIP | TCP / UDP | Standard/Low | Swith to Swith Routing Information Protocol |
| 3949 | DRIP | TCP / UDP | Standard/Low | Dynamic Routing Information Protocol |
| 3963 | THRP | TCP / UDP | Standard/Low | Teran Hybrid Routing Protocol |
| 4176 | TL-IPCPROXY | TCP | Standard/Low | Translattice Cluster IPC Proxy |
| 4187 | CSC-PROXY | TCP | Standard/Low | Cascade Proxy IANA assigned this well-formed service name as a replacement for "csc_proxy". |
| 5196 | AMPL-TABLEPROXY | TCP | Standard/Low | The protocol is used by two programs that exchange "table" data used in the AMPL modeling language |
| 6699 | BABEL-DTLS | UDP | Standard/Low | Babel Routing Protocol over DTLS |
| 9340 | GRIBI | TCP | Standard/Low | gRPC Routing Information Base Interface |
| 9889 | GT-PROXY | TCP / UDP | Standard/Low | Port for Cable network related data proxy or repeater |
| 13217 | RS-PIAS | TCP / UDP | Standard/Low | R&S Proxy Installation Assistant Service |
| 31337 | ELDIM | TCP / UDP | Standard/Low | eldim is a secure file upload proxy |
| 43438 | HMIP-ROUTING | UDP | Standard/Low | HmIP LAN Routing |
| 44322 | PMPROXY | TCP / UDP | Standard/Low | PCP proxy (pmproxy) |
Other categories
Authentication and access 19Caching and in-memory stores 10Containers and orchestration 10DNS and naming 10Databases 54Development servers 13Directory services 14Email 26File transfer and sharing 27Gaming 6Infrastructure and administration 30IoT and device telemetry 7Message queues and streaming 17Monitoring and metrics 29Printing 19RPC and service APIs 14Remote access 29Time synchronization 10VPN and tunnelling 10Voice and real-time media 29Web and HTTP 62Windows networking 14
Primary data: IANA Service Name and Transport Protocol Port Number Registry, plus clearly marked community conventions.
Last reviewed 2026-10-30 · Methodology · About · Privacy