R4#show run
Building configuration...

Current configuration : 2359 bytes
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version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
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hostname R4
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logging queue-limit 100
enable password w0rksh0p
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ip subnet-zero
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ip dhcp pool DHCPPoolLAN_0
   network 192.168.1.40 255.255.255.248
   dns-server 207.75.164.59 
   default-router 192.168.1.41 
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ipv6 unicast-routing
mpls ldp logging neighbor-changes
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no voice hpi capture buffer
no voice hpi capture destination 
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mta receive maximum-recipients 0
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interface FastEthernet0/0
 ip address 192.168.1.6 255.255.255.252
 ip nat inside
 duplex auto
 speed auto
 ipv6 address 2001:468:1080:1::2/64
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interface Serial0/0
 no ip address
 shutdown
 no fair-queue
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interface FastEthernet0/1
 ip address 128.205.10.7 255.255.255.0
 ip nat outside
 duplex auto
 speed auto
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interface FastEthernet1/0
 ip address 192.168.1.41 255.255.255.248
 ip nat inside
 duplex auto
 speed auto
 ipv6 address 2001:468:1081::1/64
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router ospf 100
 log-adjacency-changes
 redistribute static
 network 192.168.1.0 0.0.0.255 area 0
 default-information originate metric 1 metric-type 1
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router bgp 65004
 no synchronization
 bgp router-id 192.168.1.6
 bgp log-neighbor-changes
 neighbor r2rtr peer-group
 neighbor r2rtr remote-as 65002
 neighbor 2001:468:1080:1::1 peer-group r2rtr
 no auto-summary
 !
 address-family ipv4 multicast
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv6
 neighbor r2rtr activate
 neighbor r2rtr soft-reconfiguration inbound
 neighbor r2rtr prefix-list to-r2rtr out
 neighbor 2001:468:1080:1::1 peer-group r2rtr
 network 2001:468:1081::/48
 aggregate-address 2001:468:1081::/48 summary-only
 exit-address-family
 !
 address-family ipv4
 neighbor r2rtr activate
 neighbor 2001:468:1080:1::1 peer-group r2rtr
 no auto-summary
 no synchronization
 exit-address-family
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ip nat pool net192 128.205.10.7 128.205.10.7 prefix-length 24
ip nat inside source list 1 interface FastEthernet0/1 overload
ip http server
ip classless
ip route 0.0.0.0 0.0.0.0 128.205.10.254
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access-list 1 permit 192.168.1.0 0.0.0.255
ipv6 route 2001:468:1081::/48 Null0
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ipv6 prefix-list to-r2rtr seq 10 permit 2001:468:1081::/48
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call rsvp-sync
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mgcp profile default
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dial-peer cor custom
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line con 0
line aux 0
line vty 0 4
 password w0rksh0p
 login
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!
end