Which routing protocol has the ability to run IP and IPv6 without creating a separate database for each protocol.IS-ISOSPFRIPv2CLNS

Break Down the Problem

1. Identify the routing protocols mentioned.
2. Determine which protocol has the capability to handle both IPv4 and IPv6 without needing a separate database.

Relevant Concepts

• Routing protocols such as IS-IS (Intermediate System to Intermediate System), OSPF (Open Shortest Path First), and others are used to facilitate the routing of data across networks.
• Some protocols are designed to support multiple address families, allowing them to operate with both IPv4 and IPv6.

Analysis and Detail

1. IS-IS: This protocol is known for its capability to support both IPv4 and IPv6 natively. IS-IS maintains a single link-state database for both protocols, allowing it to seamlessly manage both address families without duplication of information.

2. OSPF: OSPFv3 is the version of OSPF that supports IPv6. However, OSPF requires separate instances and databases for IPv4 (OSPFv2) and IPv6 (OSPFv3).

3. RIPv2: This version of the Routing Information Protocol does not support IPv6, so it is not applicable for this question.

4. CLNS: The Connectionless Network Service is more related to ISO networking principles and does not apply directly to the question regarding IP and IPv6 routing.

Verify and Summarize

Based on the analysis, IS-IS stands out for its unique capability to manage both IPv4 and IPv6 within a single database. OSPF, in contrast, would require separate databases for each protocol version.

Final Answer

The routing protocol that has the ability to run IP and IPv6 without creating a separate database for each protocol is IS-IS.