ebtables vs iptables: What are the differences?

# Introduction
This Markdown code provides key differences between ebtables and iptables.

1. **Layer of Operation**: Ebtables operates at the data link layer (layer 2) of the OSI model, dealing with MAC addresses, whereas iptables operates at the network layer (layer 3), focusing on IP addresses.
2. **Support for MAC/IP Filtering**: Ebtables primarily filters based on MAC addresses but can have limited support for filtering on IP addresses. In contrast, iptables focuses on filtering IP addresses but can also filter based on other packet attributes like ports.
3. **Scope of Rules**: Ebtables generally works with MAC frames at the link layer and can filter traffic within a local network segment. Iptables, on the other hand, operates at the network layer and can filter both local and internet-bound traffic.
4. **Protocol Handling**: Ebtables can filter various Ethernet frame types, including ARP, IPv6, and RARP, while iptables can handle a wider range of protocols such as TCP, UDP, ICMP, and GRE.
5. **Chains and Tables**: Ebtables primarily works with predefined chains and tables related to MAC addresses, while iptables offers more flexibility with customizable chains and tables for IP filtering. 
6. **Virtual Networks**: Ebtables can be excellent for managing traffic within virtual networks or containers on a single host, while iptables is more suited for controlling network traffic between different hosts or across multiple networks.

In Summary, the key differences between ebtables and iptables lie in their layer of operation, support for MAC/IP filtering, scope of rules, protocol handling, chains, and tables, and suitability for managing traffic within virtual networks.