I have ISR 4321 router with fiber connector , i have contact support of BT to configure my router (ISR 4321 ) and they give me the below details , i have configured my interface ( fast Ethernet giga 0/0/0 ) (fiber connector ) with the below information that i have got put i can not get internet access , can any one help and advise ?
IPv4 Non-Directly Connected Section
IPV4 Network Address : X.X.X.X
IPV4 Network Mask : X.X.X.X
IPV4 Next Hop Address : X.X.X.X
