Hi there,
It sounds like you might be missing a configuration step for Network Address Translation (NAT) on your router. NAT is essential for allowing devices on your internal network (connected to Gig0-7) to communicate with devices outside your network, such as the internet.
Here's a general outline of steps you might need to take:
Configure DHCP on internal interfaces (Gig0-7): Ensure that your router is correctly assigning IP addresses to devices connected to Gig0-7.
Configure NAT (Network Address Translation): This is crucial for allowing devices on your internal network to communicate with devices outside. You typically configure NAT to translate private IP addresses (used internally) to a single public IP address (used externally). This is often referred to as NAT overload or PAT (Port Address Translation).
Example configuration for NAT overload on a Cisco router:
ip nat inside source list <ACL> interface Gig8 overload
Replace <ACL> with the name or number of an access control list that identifies the internal IP addresses you want to translate.
Set up an Access Control List (ACL): This is to identify which traffic should be translated by NAT. You may want to permit traffic from your internal network to the outside world.
Example ACL configuration:
access-list <ACL> permit ip <internal-network> <subnet-mask> any
Replace <internal-network> with the IP address range of your internal network and <subnet-mask> with the appropriate subnet mask.
Apply the ACL to the NAT configuration:
ip nat inside source list <ACL> interface Gig8 overload
This command associates the ACL with the NAT configuration, ensuring that traffic matching the ACL is subjected to NAT.
Verify configuration: After making these changes, ensure that devices on your internal network can now access devices outside (e.g., internet resources). You can also check NAT translations using the command show ip nat translations.
