CALCULATE / ROUTES0BPS / MODULE
IPV4 CIDR NORMALIZER
Canonicalize a bounded IPv4 CIDR list, remove duplicate or contained routes and produce the smallest exact representation of the same address union.
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EXAMPLES
Normalization is exact: it can shrink the route list only when the same address union can be represented without adding addresses.
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RESULT / EXPLAINED
Exact address math, with operational claims kept separate.
The network-planning tools perform deterministic IPv4/IPv6 arithmetic locally. They describe address-space relationships, not whether a network is deployed correctly.
What is exact
Network boundaries, containment, ranges, prefix lengths, masks and exact aggregation/splitting results come from deterministic address arithmetic.
Canonical output
Normalized network values remove host bits where appropriate. Containment means one calculated address range fully includes another; overlap means ranges intersect.
No live network validation
The browser does not confirm routing tables, VLANs, DHCP, firewall rules, ownership, reachability or whether the calculated prefix is appropriate for your deployment.
Before deployment
Use the arithmetic result as a planning input, then verify it against the real network design, routing/firewall policy and authoritative address allocation.
0BPS SHOWS MEASURED OR CALCULATED FACTS SEPARATELY FROM INTERPRETATION. WHERE A RESULT IS ADVISORY, ESTIMATED OR DESTINATION-SPECIFIC, THE LIMIT IS STATED IN THE TOOL.
REFERENCE / FAQ
COMMON QUESTIONS
What does CIDR normalization change?
Each input is canonicalized to its network boundary, exact duplicates and fully contained networks are removed, and adjacent address space is represented by the smallest exact CIDR set.
Can normalization add addresses that were not in my list?
No. The exact normalized output represents only the union of the valid input networks. It does not broaden the set just to produce fewer rows.
How many CIDRs can I normalize?
The interface accepts up to 128 non-empty IPv4 CIDR lines per run so the result remains bounded and easy to review.
Normalization removes duplicate or contained routes and summarizes the same address union without adding new IPv4 addresses.
Host-address inputs are converted to their actual network boundary before deduplication and aggregation.
PRACTICAL / EXAMPLES
PUT THE NUMBER IN CONTEXT.
Short examples using the same units and assumptions as this module.
10.0.0.0/24 plus 10.0.0.0/25 normalizes to the single /24 because the /25 adds no new address space.
10.0.0.0/25 plus 10.0.0.128/25 normalizes exactly to 10.0.0.0/24.