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Ethernet Max Distance Reference. Max cable length by standard. The result stays on this page.

Crossover Cable Pinout Generator. Crossover and rollover pinouts. The result stays on this page.

Fiber Color Code Reference. TIA-598 fiber colour codes. The result stays on this page.

Patch Panel Label Generator. Printable patch panel labels. The result stays on this page.

Cable Label Generator. TIA-606 compliant cable labels. The result stays on this page.

Conduit Fill Calculator. Max cables per conduit size. The result stays on this page.

Rack Unit Calculator. Rack U and height conversions. The result stays on this page.

Rack Power Calculator. Rack power draw and circuits needed. The result stays on this page.

BTU Heat Load Calculator. Heat load from watts. The result stays on this page.

UPS Sizing Calculator. VA/W sizing for equipment. The result stays on this page.

PoE Power Budget Calculator. Total PoE load vs switch budget. The result stays on this page.

PoE Standards Reference. 802.3af/at/bt classes and power. The result stays on this page.

Network Topology Diagram Maker. Draw network diagrams in the browser. The result stays on this page.

Test a packet against an ACL and show the matching line. The result stays on this page.

Generate port forward rules for common platforms. The result stays on this page.

Check IKE/IPsec proposals match between peers. The result stays on this page.

Overhead and recommended MTU/MSS for IPsec. The result stays on this page.

Generate WireGuard key pairs in browser. The result stays on this page.

WireGuard AllowedIPs Calculator. Compute AllowedIPs excluding ranges. The result stays on this page.

Build local/remote/dynamic SSH forwards. The result stays on this page.

Pre-Shared Key Generator. Generate strong VPN PSKs. The result stays on this page.

Convert IP lists to iptables/ipset/nftables/ACL format. The result stays on this page.

nftables Rule Generator. Generate nftables rulesets. The result stays on this page.

iptables to nftables Translator. Translate iptables rules to nftables. The result stays on this page.