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SRB Configuration Examples
BC-160
Bridging and IBM Networking Configuration Guide
Access lists are scanned in order. In the following example, the first list denies all entries beginning
with the letters ABC, including one named ABCD. This voids the second command, because the
entry permitting a name with ABCD comes after the entry denying it.
netbios access-list host marketing deny ABC*
netbios access-list host marketing permit ABCD
Filtering Bridged Token Ring Packets to IBM Machines Example
The example in Figure 67 disallows the bridging of Token Ring packets to all IBM workstations on
Token Ring 1.
Figure 67 Router Filtering Bridged Token Ring Packets to IBM Machines
This example assumes that all hosts on Token Ring 1 have Token Ring addresses with the vendor
code 1000.5A00.0000. The first line of the access list denies access to all IBM workstations, while
the second line permits everything else. The access list is assigned to the input side of Token Ring 1.
! deny access to all IBM workstations
access-list 700 deny 1000.5A00.0000 8000.00FF.FFFF
! permit all other traffic
access-list 700 permit 0000.0000.0000 FFFF.FFFF.FFFF
!
interface token ring 1
! apply access list 700 to the input side of Token Ring 1
source-bridge input-address-list 700
Token
Ring 1
Token
Ring 2
T2
T1
S1276a
3174
3174
3174