R1#sh run
Building configuration...

Current configuration : 1749 bytes
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! Last configuration change at 00:16:15 UTC Sun Nov 28 2021
version 15.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
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hostname R1
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boot-start-marker
boot-end-marker
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aqm-register-fnf
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enable secret 5 $1$/Efl$d0V3NiUBFCaVWnkkR9YYc/
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no aaa new-model
memory-size iomem 10
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ip cef
no ipv6 cef
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multilink bundle-name authenticated
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license udi pid C881-K9 sn FCZ1843944Q
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username ***** 
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interface FastEthernet0
 switchport access vlan 10
 switchport trunk native vlan 10
 switchport mode trunk
 no ip address
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interface FastEthernet1
 no ip address
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interface FastEthernet2
 no ip address
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interface FastEthernet3
 no ip address
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interface FastEthernet4
 no ip address
 duplex auto
 speed auto
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interface FastEthernet4.2
 encapsulation dot1Q 2
 ip address 31.210.24.7 255.255.255.254
 ip nat enable
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interface Vlan1
 no ip address
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interface Vlan10
 ip address 10.10.10.1 255.255.255.0
 ip nat enable
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ip forward-protocol nd
no ip http server
no ip http secure-server
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ip nat source list VLAN10ACL interface FastEthernet4.2 overload
ip nat source static tcp 10.10.10.10 22 interface FastEthernet4.2 2299
ip route 0.0.0.0 0.0.0.0 31.210.24.6
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ip access-list standard VLAN10ACL
 permit 10.10.10.0 0.0.0.255
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control-plane
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mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
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mgcp profile default
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line con 0
 no modem enable
line aux 0
line vty 0 4
 login
 transport input all
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scheduler allocate 20000 1000
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end