From: Scott Morris (smorris@ipexpert.com)
Date: Sat May 17 2008 - 03:17:43 ART
Don't save them in your head... SP's need to worry about it. Enterprises
generally don't, but here's the scoop.
1. It's the RFC 1918 addresses (you should already know these)
2. It's the first and last Class A, Class B and Class C space (you can
figure these out)
3. It's the Class D and Class E ranges (which should be used anyway, but
you can figure these out)
4. It's 192.0.2.0/24 and 198.18.0.0/15 (ok, if you want RFC 3330, you'll
memorize these. They're reserved addresses for software testing and
something else I don't recall)
5. It's 169.254.0.0/16 (you should know this if you run ANY Microsoft
product)
6. The other remaining ones (like 14/8, 24/8, 39/8, etc.) have actually
been deprecated/removed from that filtering as those are all assigned by
ARIN right now. If you block 24/8, you'll not get access to most
residential broadband networks. This may not be a bad thing, but you may be
surprised. ;)
In short, don't worry that much about it!
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M
#153, JNCIS-ER, CISSP, et al.
CCSI/JNCI-M/JNCI-ER
VP - Technical Training - IPexpert, Inc.
IPexpert Sr. Technical Instructor
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
http://www.ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Huan
Pham
Sent: Saturday, May 17, 2008 1:46 AM
To: Greg Bato; Thomas Fowles
Cc: ccielab@groupstudy.com; nobody@groupstudy.com
Subject: Re: Filtering RFC 3330
Hi,
I dont remember all this, and I do not bother to. I try to locate the info
about this RFC in the Doc CD but fails.
It is not a fair game to have this in the lab, given that the link to this
RFC is not availble, and you wont be able to find this RFC in the Doc CD.
If I fails the lab because of this question, I will not regret ;-) If in my
mind somewhere I do regret, then it's just that the lab itself is not fair
game , hehehhh
Greg Bato <greg.bato@yahoo.com> wrote: Dear all ,
Thanks for the reply but how can i save all that routes in my mind if i
have got that question in the lab?
So RFC 3330 includes RFC 1918 and others
Regards,
Greg
--- On Fri, 5/16/08, Thomas Fowles wrote:
From: Thomas Fowles
Subject: Re: Filtering RFC 3330
To: "Greg Bato"
Cc: ccielab@groupstudy.com, nobody@groupstudy.com
Date: Friday, May 16, 2008, 4:05 PM
How about this?:
ip prefix-list RFC3330 seq 5 permit 0.0.0.0/8 le 32
ip prefix-list RFC3330 seq 10 permit 10.0.0.0/8 le 32
ip prefix-list RFC3330 seq 15 permit 14.0.0.0/8 le 32
ip prefix-list RFC3330 seq 20 permit 24.0.0.0/8 le 32
ip prefix-list RFC3330 seq 25 permit 39.0.0.0/8 le 32
ip prefix-list RFC3330 seq 30 permit 127.0.0.0/8 le 32
ip prefix-list RFC3330 seq 35 permit 128.0.0.0/16 le 32
ip prefix-list RFC3330 seq 40 permit 169.254.0.0/16 le 32
ip prefix-list RFC3330 seq 45 permit 172.16.0.0/12 le 32
ip prefix-list RFC3330 seq 50 permit 191.255.0.0/16 le 32
ip prefix-list RFC3330 seq 55 permit 192.0.0.0/24 le 32
ip prefix-list RFC3330 seq 60 permit 192.0.2.0/24 le 32
ip prefix-list RFC3330 seq 65 permit 192.88.99.0/24 le 32
ip prefix-list RFC3330 seq 70 permit 192.168.0.0/16 le 32
ip prefix-list RFC3330 seq 75 permit 198.18.0.0/15 le 32
ip prefix-list RFC3330 seq 80 permit 223.255.255.0/24 le 32
ip prefix-list RFC3330 seq 85 permit 224.0.0.0/4 le 32
ip prefix-list RFC3330 seq 90 permit 240.0.0.0/4 le 32
-Tom
CCIE#18762
http://www.linkedin.com/in/thomasfowles
On Fri, May 16, 2008 at 10:43 AM, Greg Bato
wrote:
How can i filter RFC3330 by using prefix list ?
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