NETWORK SECURITY
Hardening your Cisco network: a security audit checklist
READING TIME
A baseline set of Cisco IOS checks for disabling legacy services, locking down management access, and verifying interface, routing and logging configuration.
3 min readSUGGESTION
What to focus on first
- 01
Check that legacy services such as Finger, PAD and TCP/UDP small servers are disabled to reduce reconnaissance and amplification risk.
- 02
Review management access through VTY lines, SNMP, local user accounts and HTTP/HTTPS server settings.
- 03
Verify interface hardening including Proxy ARP, CDP exposure on untrusted interfaces and IP directed broadcast controls.
- 04
Confirm logging is active and sent to a secure syslog server so audit evidence is retained.
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