Questions in: Network & Telecom

Right Answer:
To create a VPN to connect to a branch office, the preliminary requirements are:

1. **VPN Gateway/Router**: A device at both the main office and branch office capable of establishing VPN connections.
2. **Public IP Addresses**: Each office needs a public IP address for the VPN gateway.
3. **VPN Protocol**: Decide on a VPN protocol (e.g., IPsec, OpenVPN, L2TP).
4. **Firewall Configuration**: Ensure firewalls allow VPN traffic through the necessary ports.
5. **Network Configuration**: Configure the internal network settings to allow communication between the offices.
6. **Authentication Method**: Set up user authentication (e.g., username/password, certificates).
7. **Bandwidth Consideration**: Ensure sufficient bandwidth for the VPN connection.

Right Answer:
MP-iBGP (Multiprotocol Internal Border Gateway Protocol) is an extension of BGP that supports multiple address families, allowing it to carry routing information for different types of networks, such as IPv4, IPv6, and VPNs. Normal BGP cannot be used in lieu of MP-iBGP when dealing with multiple address families, as it only supports IPv4 unicast routing.

Right Answer:
Yes, it will work to forward the traffic of customers. The router IDs for LDP, OSPF, and BGP can be different, and they do not affect the ability to forward traffic.