Avaya SR2330 router configuration.Public ip -192.168.212.17 255.255.255.252Lan ip-10.10.81.1 255.255.255.0Router 0.0.0.0/0 192.168.212.18Any body help me with this configuration 

I am facing issues while bring the port no shutdown state. When I give command no shutdown no changes are there. Ports are still down. 

I am facing sys Act Issue in cisco router 1841. Due to this link is down. Kindly help me to troubleshoot,