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4
Replies

Cisco 1841 no internet connection

abhijith.naik
Level 1
Level 1

hi,

we are using cisco 1841 router,recently i configured PPTP vpn in router.

vpn is working fine but no internet connection in LAN pc's

kindly help me on this

Thanks,

Abhijith

1 Accepted Solution

Accepted Solutions

It is very clear no NAT on router for LAN subnet so no access to Public Internet.

Please add below config on router for interface PAT.

config t 

access-list 1 permit 192.168.10.0 0.0.0.255
ip nat inside source list 1 interface FastEthernet0/0 overload

!

View solution in original post

4 Replies 4

Pawan Raut
Level 4
Level 4

Have you done the NAT for LAN IPs? Please share config

Hi pawan,

Thanks for replay,

please see below configuration

Building configuration...

Current configuration : 1705 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CELERIX
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$9woY$eYCWJIUGDYv2OJ1KCQbyw.
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
no aaa new-model
ip subnet-zero
ip cef
!
!
ip dhcp excluded-address 192.168.10.2
!
ip dhcp pool mypool
network 192.168.10.0 255.255.255.0
dns-server 125.22.47.125 125.22.47.100
default-router 192.168.10.2
domain-name celerix.com
!
!
ip ips po max-events 100
vpdn enable
!
vpdn-group 1
! Default PPTP VPDN group
accept-dialin
protocol pptp
virtual-template 1
!
no ftp-server write-enable
!
!
!
!
!
!
!
!
!
!
!
!
!
!
username anaik password 0
username praveen password 0
!
!
no crypto isakmp ccm
!
!
!
!
interface FastEthernet0/0
ip address 122.166.216.148 255.255.255.0
ip pim sparse-mode
ip nat outside
ip virtual-reassembly
speed 100
full-duplex
no cdp enable
!
interface FastEthernet0/1
ip address 192.168.10.2 255.255.255.0
ip pim sparse-mode
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface Serial0/0/0
no ip address
shutdown
clockrate 2000000
!
interface Virtual-Template1
ip unnumbered FastEthernet0/0
peer default ip address pool PPTP-Pool
no keepalive
ppp encrypt mppe 128
ppp authentication ms-chap ms-chap-v2
!
ip local pool PPTP-Pool 192.168.10.3 192.168.10.200
ip classless
ip route 0.0.0.0 0.0.0.0 122.166.216.1
!
!
no ip http server
no ip http secure-server
!
access-list 100 permit ip any any
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
password
login
!
end

It is very clear no NAT on router for LAN subnet so no access to Public Internet.

Please add below config on router for interface PAT.

config t 

access-list 1 permit 192.168.10.0 0.0.0.255
ip nat inside source list 1 interface FastEthernet0/0 overload

!

abhijith.naik
Level 1
Level 1

Thanks Pawan issue got resolved.

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