From: Budak Timuralp (budak.timuralp@sabancitelekom.com)
Date: Mon Nov 24 2003 - 07:24:27 GMT-3
Thank you Brian and Scott.
I have read the CCO links 2months ago. But I forgot so I hope that on
the exam I can find them from the DOC CD. But I guess I have to
learn+memorize them.
Thanks again.
Best regards,
Budak Timuralp
Sabanci Telecommunication Services Inc.
-----Original Message-----
From: Scott Morris [mailto:swm@emanon.com]
Sent: Monday, November 24, 2003 3:51 AM
To: Budak Timuralp; ccielab@groupstudy.com
Subject: RE: SNA SAP Filter
That's an awful good question. I'm really not sure that there is.
Other than being referenced in the various config/command guides, I
don't believe there's a really solid explanation about them anywhere!
I just hunted through the design guide and technology handbooks that
come on the doc cd and didn't find anything decent there either...
Well, hmmmmm.... Searching CCO helps some, but not much on your lab!
Check out:
http://www.cisco.com/warp/public/697/dlswfilter.shtml
http://www.iana.org/assignments/ieee-802-numbers
http://www.ethermanage.com/ethernet/enet-numbers/cisco-lsap-list.html
Also, I have thrown a little whitepaper together that you can find at:
ftp://ns2.emanon.com/Whitepaper%20-%20DLSW%20SAP%20Filter.pdf
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
CISSP, JNCIS, et al.
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
swm@emanon.com/smorris@ipexpert.net
-----Original Message-----
From: Budak Timuralp [mailto:budak.timuralp@sabancitelekom.com]
Sent: Sunday, November 23, 2003 7:08 PM
To: Scott Morris; ccielab@groupstudy.com
Subject: RE: SNA SAP Filter
Are there any links about the sap-filter on DOC CD. I searched a lot but
couldn't find anything about that.
Best regards,
Budak Timuralp
Sabanci Telecommunication Services Inc.
-----Original Message-----
From: Scott Morris [mailto:swm@emanon.com]
Sent: Sunday, November 23, 2003 5:10 PM
To: 'Wei Zou (wzou)'; ccielab@groupstudy.com
Subject: RE: SNA SAP Filter
You'll need to permit more than just the one thing... The first hex
number is the values for the SAP (DSAP/SSAP) field. The second hex
number is a mask for it. Think in binary...
That example (all over CCO) is WAY too broad, particularly for
Ethernet-only environments. But the details of this have been discussed
many times here on groupstudy, so I'd suggest looking through the
archives so I don't sound nearly as long-winded as I typically do on
this subject. :)
Enjoy!
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
CISSP, JNCIS, et al. IPExpert CCIE Program Manager IPExpert Sr.
Technical Instructor swm@emanon.com/smorris@ipexpert.net
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Wei Zou (wzou)
Sent: Sunday, November 23, 2003 9:31 AM
Subject: SNA SAP Filter
Hi :
Could anyone tell me why the syntax to permit all SNA SAP is:
access-list 200 permit 0x0000 0x0D0D
access-list 200 deny 0x0000 0xFFFF
Other than:
access-list 200 permit 0x0D0D 0x0000
access-list 200 deny 0x0000 0xFFFF
I belive 0x0D0D is for SNA SAP.
Thanks
Wei
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