Tools tagged #network
Every ecech. tool tagged network: 13 free calculators and utilities across Network & IP. No signup, runs in your browser.
CIDR Overlap Checker
10.0.0.0/8 and 10.1.0.0/16 look unrelated and one sits entirely inside the other. Paste a list and see which blocks collide, and which merely contain another.
Network🌐CIDR to IP List
A /24 is 256 addresses and 254 usable hosts. Get the explicit list, with the network and broadcast addresses labelled instead of quietly included.
Network🌐DHCP Pool Planner
A lease is held until it expires, not until the device leaves. With an eight-day default and heavy churn, the pool fills with ghosts.
Network🌐DSCP Value Format
Translate a six-bit DSCP codepoint into packet-header representations.
Network🌐IP Range Checker
Private, loopback, link-local, carrier-grade NAT, multicast and reserved — with what each one means when you find it somewhere unexpected.
Network🌐IP Range to CIDR
192.168.1.5 to 192.168.1.10 is four CIDR blocks, not one. Firewalls want CIDR and people think in ranges, so here is the exact conversion.
Network🌐IPv6 Compressor
The same address has many valid spellings and exactly one canonical one. If your code compares addresses as strings, only the canonical form is safe.
Network🌐IPv6 Subnetting
A /48 gives 65,536 subnets and every one of them should be a /64. Subnetting smaller breaks the autoconfiguration that hosts rely on.
Network🌐MAC Address Format
Convert between colon, dash, Cisco and bare formats, and read the two bits that say whether an address is multicast or a randomised one no vendor ever owned.
Network🌐MTU Payload Efficiency
Subtract every modeled header from MTU before estimating payload efficiency and packet count.
Network🌐Packet Capture Storage
Apply sampling, captured-byte fraction and compression to a line-rate storage ceiling.
Network🌐Route Summarization
192.168.1.0/24 and 192.168.2.0/24 summarize to 192.168.0.0/22 — which also claims two networks you never mentioned.
Network🌐VLSM Planner
A subnet must start on a multiple of its own size, so a large block placed after small ones can be blocked by a boundary while addresses remain.
Network