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Where can I find a list of IP Protocols?

By W. LeGrow ·
In Win 2000, you can implement IP filtering on your network interfaces. There is the ability to filter by IP Protocol, but it requires the number assigned to the protocol to implement it. I have looked several places, including 2k help, Microsoft,and some of the security sites on the web. Anyone know where I could find this list?

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A couple of links

by eBob In reply to Where can I find a list o ...

At Microsoft:

http://www.microsoft.com/windows2000/techinfo/reskit/samplechapters/cnfc/cnfc_por_gdqc.asp

Or, at IANA themselves:

www.iana.org

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Aren't they called ports

by katejlogan In reply to Where can I find a list o ...

I think what you are looking for are port numbers. Http is 80, ftp 21 and 23, etc...

Here is a link to a list of the most common port numbers and their use: http://www.ec11.dial.pipex.com/port-num.htm#700 I hope this helps in your problem.

Katie

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no. not port numbers

by W. LeGrow In reply to Aren't they called ports

No, thanks for your reply, but I have the list of port numbers.

This is the list of numbers that are assigned to protocols for filtering in a firewall or TCP/IP filtering in Win 2000.

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I don't understand your question

by katejlogan In reply to no. not port numbers

I guess I don't understand your question. Please give an example of what you want to filter.

If it's coming thorugh a firewall it's TCP/IP. There are other protocols incapsulated in IP packets such as citrix's ICA protocol, but even that is controlled through a port number.

If you give an example of what you are trying to filter than maybe I can help more.

Thanks,
Katie

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eBob actually answered it quite well

by W. LeGrow In reply to I don't understand your q ...

This was the problem I was running into Katie I couldn't believe that they weren't asking for the port number either! So, I understand your confusion completely.

In 2000, in the Advanced Properties page of TCP/IP, under the Options tab, you'll find TCP/IP Filtering. Which is were you'll need to know the protocol number.

In this page there are 3 boxes, one is asking what TCP ports I'd like to filter or allow, the next asks which UDP ports I'd like to filter or allow and the last asks which protocol I'd like to filter or allow. Simply putting in the port number doesn't do anything.

eBob had the right answer. Each protocol - ICMP, IGMP, TCP.. etc. has a number associated with it, which is used to specify which protocol is either filtered, or allowed through. His couple of links defined the protocol numbers.

Thanks for trying
Ward

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List of port numbers

by ray102 In reply to no. not port numbers

You say: No, thanks for your reply, but I have the list of port numbers.

Would you tell us where you found them? What's the URL?

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List of port numbers

by W. LeGrow In reply to List of port numbers

Sorry it took me a while.

go to www.knotter.com for a list of port numbers.

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