Hey guys i need some help asap.
I have two cisco 1800-1900 series router and i need to reprogram then due to a DDoS attack. Long story short we suffered a DDoS attack today and Comcast changed our static IP address. show i need to reconfigure our router and the VPN tunnel.
Everything was configured and working properly. It has been a long time since i have worked on CLI with cisco. What is the easiest way to do this?
This is what is needed.
- Change WAN IP Address
- Change Gateway Address
- Change DHCP DNS servers (All other DHCP and Internal LAN stays the same)
- Change VPN Tunnel to connect to new IP address of Router #1's new WAN IP
I could really use a step by step. I remember many of the commands but i am sure i will forget something.
For this use the follow as the old and new IP addresses:
Router 1 old WAN 23.24.xx.xx
Router 1 new WAN 50.243.xx.xx
THANK YOU EVERYONE!