From: Ben Rife (brife@xxxxxxxxxx)
Date: Tue May 09 2000 - 20:34:06 GMT-3
The following is from the source-route bridging section of the CD:
######################################################################
##########
An access list that passes a frame if it is a NetBIOS frame (SAP
= 0xF0F0)
An access list that passes a frame if it is an SNA frame (SAP =
0x0404)
An access list that passes a MAC address of 0110.2222.3333
The following configuration allows for all these conditions:
! Access list 201 passes NetBIOS frames (command or response)
access-list 201 permit 0xF0F0 0x0001
!
access-list 202 permit 0x0404 0x0001 ! Permits SNA frames (command or
response)
access-list 202 permit 0x0004 0x0001 ! Permits SNA Explorers with NULL
DSAP
!
! Access list 701 will permit the FEP MAC address
! of 0110.2222.3333
access-list 701 permit 0110.2222.3333
The 0x0001 mask allows command and response frames to pass equally.
######################################################################
##########
Note that it indicates that SNA frames are permitted with 0X0404
0x0001 and
Netbios frames are permitted with 0xF0F0 0x0001.
I understand the Netbios command and have infact seen this in other
documentation.
The SNA filtering command is new to me however. I normally see it
documented as 0x0000 0x0D0D.
Can someone confirm which is the correct form of the SNA?
Is it 0x0000 0x0D0D or 0x0404 0x0001? Can someone explain?
Thanks in advance,
Ben
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