Not that i think there is a problem using external addresses to connect to your server on your inside network. But isnt it alot faster/easier to use an internal address? (if you have a DNS server you could just make a new record with a different hostname but then the internal ip instead of the external)
Currently working as Cisco Engineer at Neon-Networking.
Certifications:
CCNA - Have it
CCNA Security - Have it
CCSP - Almost!!!!
CCIE Security - Not so far away dream
