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version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
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hostname S1
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spanning-tree mode pvst
spanning-tree extend system-id
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interface FastEthernet0/1
 switchport access vlan 99
 switchport trunk native vlan 99
 switchport trunk allowed vlan 10,20,100
 switchport mode trunk
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interface FastEthernet0/2
 switchport access vlan 99
 switchport trunk native vlan 99
 switchport trunk allowed vlan 10,20,99-100
 switchport mode trunk
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interface FastEthernet0/3
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/4
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/5
 switchport access vlan 10
 switchport mode access
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interface FastEthernet0/6
 switchport access vlan 10
 switchport mode access
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interface FastEthernet0/7
 switchport access vlan 20
 switchport mode access
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interface FastEthernet0/8
 switchport access vlan 20
 switchport mode access
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interface FastEthernet0/9
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/10
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/11
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/12
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/13
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/14
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/15
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/16
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/17
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/18
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/19
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/20
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/21
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/22
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/23
 switchport access vlan 100
 switchport mode access
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interface FastEthernet0/24
 switchport access vlan 100
 switchport mode access
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interface GigabitEthernet0/1
 switchport access vlan 100
 switchport mode access
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interface GigabitEthernet0/2
 switchport access vlan 100
 switchport mode access
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interface Vlan1
 no ip address
 shutdown
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interface Vlan99
 mac-address 0007.ecd6.7001
 ip address 10.18.99.1 255.255.255.0
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ip default-gateway 10.18.99.254
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line con 0
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line vty 0 4
 login
line vty 5 15
 login
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end