Network & Email · page 7

Lists network, first and last usable, broadcast, and count for any prefix.

Classifies pasted addresses as private, loopback, link-local, multicast, or global.

Tables special-use IPv4 and IPv6 ranges with RFC citations.

Converts masks into hexadecimal notation for legacy equipment.

Chooses the tightest single summary route for scattered prefixes.

Plans /96 translation prefixes and DNS64 interactions.

Plans prefix-to-prefix NPTv6 translation between internal networks.

Plans anycast service prefixes and node announcement strategy.

Lists freed subnets and proposes merge, split, or reuse decisions.

Generates consistent subnet names from site, VLAN, and purpose inputs.

Decodes RA M/O/A flags and their effect on client behavior.

Walks RFC 8305 v4/v6 connection racing with timing numbers.

Plans static 6in4 tunnels with endpoint and routed prefix addressing.

Sizes pools, exclusions, and lease durations from client counts.

Turns a MAC and hostname list into reservation table rows.

Hex-encodes vendor option 43 payloads for APs and phones.

Decision tree for 169.254.x.x self-assigned address symptoms.

Converts interface subnets into OSPF wildcard network statements.

Maps subnets to backbone and stub areas in an assignment table.

Tables interface costs per bandwidth for common reference-bandwidth values.

Explains LSA types 1 through 11 with flooding scope notes.

Plans interface priorities to force designated router placement.

Computes the classic composite metric from bandwidth and delay inputs.

Plans stub routers and eigrp stub settings to limit query scope.