Welcome to another informative article from Techal! Today, we will dive into the syntax of configuring named access lists on Cisco routers. In our previous articles, we explored numbered access lists, but now it’s time to understand the syntax behind configuring named access lists.
Syntax of Configuring Named Access Lists
The syntax for configuring named access lists is largely similar to that of numbered access lists. However, there are a couple of differences worth noting. Let’s take a look:
## Syntax for Configuring Named Access Lists
- Source
- Destination
- Protocol
- Action (Remark, Permit, or Deny)
- ID Number (Can be specified as a number or a name)
- Command (Use `ip access list` instead of `access list`)
As you can see, the source, destination, and protocol fields remain the same in both numbered and named access lists. The action options, such as remark, permit, or deny, are also identical.
However, there are two key differences. First, the ID number in a named access list can be specified as a number or a name, giving you the flexibility to name your access list creatively. Second, to configure a named access list, you will use the command ip access list instead of access list.
Why Choose Named ACLs?
You might be wondering why you should bother with named access lists when the syntax seems so similar to numbered access lists. Well, named access lists offer additional features that are not available in numbered access lists. For example, with named access lists, you can remove individual ACL lines without deleting the entire ACL. This flexibility solves a limitation commonly faced with numbered access lists.
Named access lists have evolved over time, incorporating new features and addressing the limitations of numbered access lists. Initially, access lists only filtered based on source IP addresses, but with the introduction of extended access lists, filtering expanded to five different fields. Named access lists represent the next step in this evolution, providing even more functionality.
FAQs
Q: Can I use both numbered and named access lists on my Cisco router?
A: Yes, you can use both numbered and named access lists simultaneously. However, it’s important to remember that each ACL has its own unique ID number or name.
Q: Are there any other advantages to using named access lists?
A: Absolutely! In our upcoming articles, we will unpack additional features and advantages of named access lists in more detail.
Q: Where can I learn more about Techal?
A: Visit Techal to explore more insightful articles and guides.
Conclusion
In this article, we explored the syntax behind configuring named access lists on Cisco routers. We learned that while the syntax is similar to numbered access lists, named access lists offer additional features and flexibility. Stay tuned for our upcoming articles, where we will delve deeper into the advantages of named access lists and uncover more hidden gems in the world of technology.
Thank you for reading, and we hope you found this lesson valuable. See you in the next article, where we will demonstrate the configuration of named access lists and explore other exciting features.
