SKNK Knowledge Base
Practical, source-backed guides for network engineers and infrastructure teams. From ASN applications to BGP, IPv6, and routing security, we connect the technical details with real operational boundaries.
34
Chinese guides
37
English guides
66
Topics covered
Suggested learning path
New to Internet number resources? Follow these four guides in order, with one clear question answered at each step.
Featured guide
37 original English guides, ordered by publication date.
Need a public IPv4 block? Learn what a /24 lease includes, what it costs, which routing and reputation checks matter, and when leasing is the wrong fit.
Read articleFeatured guide
IPv4 · Leasing · BGP
A BGP route leak occurs when routing announcements travel beyond their intended policy scope. Learn how route leaks happen, how they differ from hijacks, and how network operators detect and reduce the risk.
Read articleLearn what a Regional Internet Registry (RIR) is, how the five RIRs distribute IP addresses and ASNs, and how IANA, LIRs, and BGP fit together.
Read articleWhat is IPv4? How 32-bit addresses work, what a /24 really measures, why the pool ran out, and why networks still run on IPv4 through NAT, leasing, CIDR, and dual-stack.
Read articleA BGP Community is a policy signal attached to a route, not a command. How standard, large, extended, and provider-defined communities differ, what NO_EXPORT, NO_ADVERTISE, and BLACKHOLE actually do, and how to verify a community before your traffic depends on it.
Read articleA sub-/24 IPv4 lease can be originated by your own ASN at the BGP layer, but that does not make the route globally reachable, registered, or portable. How to separate the four things sellers bundle into one word.
Read articleLearn what an IP prefix is, how /24, /48, and /64 work, and why prefixes sit at the centre of CIDR, BGP, ROAs, and route objects.
Read articleReview public pricing, eligibility, and service boundaries to decide whether the model fits your network.
