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Block UDP on Port 514

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gchan5

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Jul 22, 2005, 2:16:31 PM7/22/05
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I am responsible for a Cisco router 7200 and we need to block UDP on
port 514 on the ISP connection. I kind of have an idea with the access
list, but I am not very sure how to do this.

Any help would be appericated. If you can send me and article or manual
explaining the process.

Thanks for your help....Gordon

AAA

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Jul 22, 2005, 2:59:53 PM7/22/05
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access-list read-the manual-or-stop-IT deny udp (who you do not like) (mask
you hate) (what you 'd like to keep safe) (netmask you've got your precious
thing) eq 514
access-list read-the manual-or-stop-IT permit ip any any

then, an daqccess-group in the interface guilty to let the bad traff going
through.

So, this is for PIX. On a router, you've got to kinda revert the netmask.

RTFM

AA


"gchan5" <gc...@gchan.net> wrote in message
news:1122056191.2...@f14g2000cwb.googlegroups.com...

Luc

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Jul 22, 2005, 6:07:52 PM7/22/05
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more positive :

http://www.cisco.com/en/US/products/sw/secursw/ps1018/products_tech_note09186a00800a5b9a.shtml#topic1

Regards,
Luc

--
Luc

gchan5

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Jul 24, 2005, 3:04:24 AM7/24/05
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Luc,

I would like to thank you, this article helped me very much!

Gordon

Chris

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Jul 24, 2005, 6:59:25 AM7/24/05
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"AAA" <a@a.a> wrote in message news:42e14...@x-privat.org...

> access-list read-the manual-or-stop-IT deny udp (who you do not like)
> (mask you hate) (what you 'd like to keep safe) (netmask you've got your
> precious thing) eq 514
> access-list read-the manual-or-stop-IT permit ip any any
>
> then, an daqccess-group in the interface guilty to let the bad traff going
> through.
>
> So, this is for PIX. On a router, you've got to kinda revert the netmask.
>
> RTFM
>
> AA
>

That's the strangest reply I've ever seen!


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