From: Scott Morris (swm@emanon.com)
Date: Fri Jul 18 2003 - 01:42:50 GMT-3
The numbers represent the DSAP and SSAP codes within the ethernet header,
telling what kind of traffic you have.
F0 is Netbios command
F1 is Netbios response (hence the 01 mask will match F0/F1)
E0/E1 is the same for Novell if I'm not mistaken (been a while since I cared
about that one!)
04/05 is SNA as it will exist on an ethernet network
00 is Null LSAP, also used for explorer packets in DLSw
In the lines you listed below, the first hex represents the LSAP field of
the ethernet header. The second hex number is a mask for the first. From a
binary viewpoint, it works out just the same as a netmask! You just have to
think in hex now instead of decimal or binary. :)
HTH,
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Bob
Woodson
Sent: Thursday, July 17, 2003 10:17 PM
To: ccielab@groupstudy.com
Subject: dlsw question
Could someone please give explanation and input on:
access-list 200 deny 0xF0F0 0x0101
access-list 200 deny 0xE0E0 0x0101
access-list 200 permit 0x0000 0xFFFF
Thank You
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