Networking
What is IPv6?
Definition
IPv6 is the current version of the Internet Protocol, using 128-bit addresses to replace the exhausted 32-bit IPv4 space. A routed /64 subnet, which is the standard allocation, contains about 18 quintillion addresses — enough to give every container and service its own public address without network address translation.
Why IPv6 matters
A routed /64 subnet, which is the standard allocation, contains about 18 quintillion addresses — enough to give every container and service its own public address without network address translation.
Where IPv6 comes up
- What is included in every plan? Full root access, KVM virtualisation with custom kernel support, custom ISO upload, an out-of-band VNC console, one IPv4 address, a routed IPv6 /64, always…
- How many IP addresses can I have on one VPS? Every instance includes one IPv4 address and a routed IPv6 /64 — that is 18 quintillion v6 addresses, not one. Up to eight additional IPv4 addresses can be…
- Do you provide IPv6? Yes — a routed /64 subnet on every instance, at every tier, at no cost. Not a single address: an entire subnet routed to your server, so each container or …
- Are there setup fees or hidden charges? No setup fee, no provisioning charge, and no bandwidth overage billing. The plan price includes the transfer allowance, DDoS mitigation, one IPv4 address, …
- Can I set reverse DNS (PTR) records myself? Yes, for both IPv4 and IPv6, directly from the control panel, and changes propagate within minutes. Reverse DNS is essential for mail: most large receivers…
- Secure a new VPS in 10 minutes Five changes eliminate essentially every automated attack against a new server: key-based SSH with passwords disabled, no direct root login, a default-deny…
More from networking
- ASN
- An ASN identifies a network that controls its own routing policy and announces its address space to the global routing table via BGP.
- BGP
- BGP is the protocol that autonomous systems use to exchange routing information and decide how traffic crosses the internet.
- IXP
- An IXP is a shared physical facility where networks interconnect directly rather than paying a transit provider to carry traffic between them.
- Peering
- Peering is a direct interconnection between two networks that exchange traffic with each other without paying a third party to carry it.
- IP transit
- Transit is a paid service in which one network carries another network's traffic to the rest of the internet.
- Anycast
- Anycast announces the same IP address from several locations at once, so each user is routed to the nearest instance by BGP.
- Reverse DNS
- Reverse DNS maps an IP address back to a hostname through a PTR record, the inverse of a normal DNS lookup.
- Port 25
- Port 25 is the TCP port used for server-to-server SMTP mail delivery.