CALCULATE / COMPARE0BPS / MODULE
IPV4 CIDR COMPARE
Compare two IPv4 networks for equality, containment or separation, then inspect their shared range and smallest common supernet.
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EXAMPLES
Valid CIDR networks are aligned hierarchically: two networks are equal, one contains the other, or they are disjoint. This is prefix math, not a live routing test.
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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
Can two valid CIDR networks partially overlap?
Aligned CIDR networks are hierarchical: two valid CIDRs are either disjoint, equal, or one contains the other. The compare tool makes that relationship explicit.
Are the entered networks sent to 0bps?
No. IPv4 CIDR comparison is performed locally in the browser.
Canonical IPv4 CIDRs are hierarchical, so two valid networks are equal, nested or disjoint rather than partially overlapping.
Both network ranges are canonicalized and compared locally in the browser.
PRACTICAL / EXAMPLES
PUT THE NUMBER IN CONTEXT.
Short examples using the same units and assumptions as this module.
The /24 contains the /25 and the intersection is the complete /25 range.
Adjacent /24 networks are disjoint even though they can share a larger containing /23 supernet.