network-config-validation

Validate Cisco IOS configurations before deployment by running preflight checks to detect dangerous commands, duplicate IPs, overlapping subnets, and insecure management-plane exposure. This generates a structured preflight report to address critical issues first.

Network misconfigurations that cause downtime or security risks include destructive commands like reload or interface removal, duplicate IP addresses, overlapping subnets, stale references, and weak management-plane access controls like missing SSH restrictions.

Yes, you can check scripted network templates for duplicate IPs and overlapping subnets. The validation skill applies layered checks to scripted templates and Cisco IOS/IOS-XE style configs to catch these specific IP allocation conflicts.

Detect insecure management-plane exposure in IOS configs by checking VTY blocks for SSH-only access, inbound access-class restrictions, and explicit exec-timeouts. Security hygiene checks also flag SNMPv2, weak credentials, and outdated protocols.

The best way to run pre-deployment network config checks is to execute a structured preflight validation on the candidate config. This catches dangerous commands, credential exposure, and misreferences early, generating a report to fix critical issues before applying changes.

Yes, network config validation works without external dependencies. The skill requires no listed dependencies to perform its layered checks for destructive commands, subnet overlaps, stale references, and security hygiene on Cisco IOS style configs.