Routing Order of Operations
The original information was taken from Cisco article on NAT Order of Operations. However, this order helps understand other features, like WCCP.
- 1.If IPSec then check input access list
- 2.decryption – for CET (Cisco Encryption Technology) or IPSec
- 3.check input access list
- 4.check URPF (Unicast Reverse Path Forwarding)
- 5.check input rate limits
- 6.input accounting – update stats
- 7.redirect to web cache
- 8.If configured with ip nat outside: NAT outside to inside (global to local translation)
- 9.policy routing
- 10.routing
- 11.If configured with ip nat outside: NAT inside to outside (local to global translation)
- 12.crypto (check map and mark for encryption)
- 13.check output access list
- 14.inspect (Context-based Access Control (CBAC))
- 15.TCP intercept
- 16.encryption
- 17.Queueing
Last modified 1yr ago