*[DediGPU](https://dedigpu.com/) — Markdown mirror of [https://dedigpu.com/docs/networking](https://dedigpu.com/docs/networking) · updated 2026-09-02 · index for LLMs: [llms.txt](https://dedigpu.com/llms.txt) · everything: [llms-full.txt](https://dedigpu.com/llms-full.txt)*

# Networking

> The network side of a DediGPU server: port speeds, the public IPv4 and reverse DNS, extra addresses, private VLANs, 25 Gbit/s uplinks, free egress, and what is filtered.

Each server has a public port, one IPv4 and no meter on the bytes. This page lists what you can add and the few things we filter.

## Port speeds

- **Consumer and workstation cards:** 10 Gbit/s, upgradable to 25 Gbit/s for $60 per server per month
- **PCIe data-centre cards:** 25 Gbit/s included
- **SXM and OAM nodes:** 100 Gbit/s included, plus 3.2 Tbps InfiniBand between eight-card nodes for clusters

## Addresses

One IPv4 from our own space with reverse DNS set to the server hostname; change the PTR from the server page. Up to eight more addresses at $3 each per month, routed to the server, with their own PTR records. Addresses are released when the server is cancelled.

## Private VLAN

$25 per server per month adds a second interface on a layer-2 segment shared by your servers in the same region, isolated from the public port and from other tenants. Use it for storage traffic, a private Kubernetes network or a database the Internet should not see.

## Egress and traffic

$0 per GB, in and out, at port speed. The transit share is a line of the cost sheet. Sustained saturation is fine; if it measurably hurts other tenants on the same switch we will talk to you first.

## What we filter

- Spoofed source addresses (BCP 38).
- Outbound TCP port 25, closed by default. Open a ticket with the purpose to have it opened.
- Nothing else: no firewall, no port filtering, no deep inspection. Firewall your server.

## Attacks

A volumetric attack against your address is blackholed upstream until it passes, usually within minutes, to protect the region. Application-layer filtering is yours to run.

## IPv6

A /64 per server on request from a ticket, at no charge, in every region.