I've got my isp router connected to the cisco router (897 VA-VAB). The Cisco router gets internet normally and pings sites accordingly but any connected device doesn't have inernet. Here is my currently running configuration:
boot-start-marker
boot-end-marker
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logging buffered 51200 warnings
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no aaa new-model
memory-size iomem 10
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ip dhcp excluded-address 10.10.10.1
ip dhcp excluded-address 192.168.1.1
ip dhcp excluded-address 192.168.3.1
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ip dhcp pool ccp-pool
import all
network 10.10.10.0 255.255.255.128
default-router 10.10.10.1
lease 0 2
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ip dhcp pool 192.168.1.0 255.255.255.0
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 8.8.8.8 4.2.2.2
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ip dhcp pool NewPool
import all
network 192.168.3.0 255.255.255.0
dns-server 8.8.8.8 4.2.2.2
default-router 192.168.3.1
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no ip domain lookup
ip domain name yourdomain.com
ip name-server 8.8.8.8
ip name-server 4.2.2.2
ip cef
no ipv6 cef
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multilink bundle-name authenticated
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cts logging verbose
license udi pid C897VAB-K9 sn FCZ2229E352
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vtp version 2
username karakas privilege 15 secret 5 $1$/iTv$MydhEFx5bow43C/pA2gbN1
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controller VDSL 0
no cdp run
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interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
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interface BRI0
no ip address
encapsulation hdlc
shutdown
isdn termination multidrop
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interface Ethernet0
no ip address
shutdown
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interface GigabitEthernet0
no ip address
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interface GigabitEthernet1
no ip address
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interface GigabitEthernet2
no ip address
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interface GigabitEthernet3
no ip address
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interface GigabitEthernet4
no ip address
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interface GigabitEthernet5
no ip address
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interface GigabitEthernet6
no ip address
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interface GigabitEthernet7
no ip address
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interface GigabitEthernet8
ip address 192.168.1.2 255.255.255.0
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
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interface Vlan1
description $ETH_LAN$
ip address 192.168.3.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
ip tcp adjust-mss 1452
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ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
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ip nat source list 1 interface GigabitEthernet8 overload
ip nat inside source list 1 interface GigabitEthernet8 overload
ip route 0.0.0.0 0.0.0.0 192.168.1.1
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tftp-server flash:/firmware/vdsl_bond.bin
access-list 1 permit 192.168.1.0 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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banner exec ^C
