From: Scott Morris (swm@emanon.com)
Date: Fri Aug 15 2003 - 14:19:38 GMT-3
Hex masks work just like ACL masks do when you break them in binary!
D = 13 or 1101 in binary.
So where the '1' means you don't care about the value, you allow:
0000 = 0
0001 = 1
0100 = 4
0101 = 5
1000 = 8
1001 = 9
1100 = 12 (C)
1101 = 13 (D)
In an ethernet network, however, 4 and 5 (SNA command and response
respectively) are all that you'll find. 8,9, C and D are IBM specific
stuff on TR networks.
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Rajagopal S
Sent: Friday, August 15, 2003 12:06 PM
To: Joe Martin; Alec; CCIE GroupStudy
Subject: RE: SNA ACL
Hi all,
Can anybody let me know the different HEX values associated with this
access filtering ? as 0x0000 0x0d0d - SNA.
Cheers
Raj
Joe Martin <jmartin@capitalpremium.net> wrote:
Check the erratta on that book at ciscopress.com, it will tell you that
option 1 is indeed correct.
HTH,
Joe Martin
CCIE #12035
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Alec
Sent: August 14, 2003 10:19 AM
To: ccielab@groupstudy.com
Subject: SNA ACL
Which of the following ACL to filter SNA is correct ?
1. access-list 200 permit 0x0000 0x0d0d
2. access-list 200 permit 0x0d0d 0x0000
Personaly, I think option 1 is correct. Yet I read the Cisco Practical
Studies book which refers to option 2. Your advice please.
regards,
alec
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