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The --allow-host and --deny-host options in kafka-acls.sh will accept CIDR notation alongside the existing formats:
| Format | Example | What |
|---|---|---|
| is does | ||
| Exact IPv4 | 192.168.1.100 | Matches one address (already works) |
| Exact IPv6 | 2001:db8::1 | Matches one address (already works) |
| Wildcard | * | Matches everything (already works) |
| IPv4 CIDR | 192.168.0.0/24 | Matches a subnet (new) |
| IPv6 CIDR | 2001:db8::/32 | Matches a subnet (new) |
Admin Client API
For programmatic use via the Admin Client, nothing changes in the API signatures. CIDR notation goes where a host would normally go:
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