Cisco 837 Broadband Config - What I am missing? Can't get internet access

Posted on 2005-04-07
Last Modified: 2013-12-14
Hi we use a the cisco 837 for VPN which works fine but we have been unable configure internet access, I am sure that it it something straight forward just a bit of a newbie on the routers, any help or pointer greatly appreciated, config below

version 12.3
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
hostname xxxxxx
no logging console
enable secret xxxxxx
username xxxxxx privilege 15 password xxxxxx
clock timezone PCTimeZone 0
no aaa new-model
ip subnet-zero
ip tcp synwait-time 10
ip domain name
no ip bootp server
ip cef
ip audit notify log
ip audit po max-events 100
vpdn enable
vpdn-group 1
protocol pppoe
no ftp-server write-enable
crypto isakmp policy 1
hash md5
authentication pre-share
group 2
crypto isakmp key 0 xxxxxxxxxx address xxxxxxxxxxxxxx
crypto ipsec transform-set fire esp-des esp-md5-hmac
crypto map SDM_CMAP_1 1 ipsec-isakmp

description Tunnel to
set peer
set transform-set fire
match address 101
interface Null0
no ip unreachables
interface Ethernet0
description $FW_INSIDE$$ETH-LAN$
ip address
ip nat inside
ip tcp adjust-mss 1452
no cdp enable
hold-queue 100 out

interface ATM0
no ip address
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5snap
pppoe-client dial-pool-number 1
dsl operating-mode auto
interface FastEthernet1
no ip address
duplex auto
speed auto
interface FastEthernet2
no ip address
duplex auto
speed auto
interface FastEthernet3
no ip address
duplex auto
speed auto
interface FastEthernet4
no ip address
duplex auto
speed auto
interface Dialer1
description $FW_OUTSIDE$
ip address negotiated
ip access-group 105 in
ip mtu 1452
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname xxxxxx
ppp chap password 7 xxxxxxxxxxxxxxxxxxxxxx
crypto map SDM_CMAP_1
ip classless
ip route Dialer1 permanent
ip http server
ip http secure-server
access-list 101 remark SDM_ACL
access-list 101 remark IPSec Rule
access-list 101 permit ip
access-list 105 permit udp host host eq non500-isakmp
access-list 105 permit udp host host eq isakmp
access-list 105 permit esp host host
access-list 105 permit ahp host
access-list 105 permit udp host any eq non500-isakmp
access-list 105 permit udp host any eq isakmp
access-list 105 permit esp host any
access-list 105 permit ahp host any
access-list 105 permit ip
access-list 105 permit tcp any any established
access-list 105 remark IPSec Rule
access-list 105 remark SDM_ACL Catagory=17
access-list 105 remark SDM_ACL Catagory=4
dialer-list 1 protocol ip permit
no cdp run

banner login CAuthorized access only!
Disconnect IMMEDIATELY if you are not an authorized user!
line con 0
password 7 130346005808577E393020
no modem enable
stopbits 1
line aux 0
password 7 0709705E1D0D4A51050603
stopbits 1
line vty 0 4
password 7 130346005808577E393020
login local
scheduler max-task-time 5000
scheduler interval 500

Question by:SGordon
    LVL 6

    Accepted Solution

    You need a NAT statment for your split-tunnel, add below lines:

    ip nat inside source route-map internet-traffic interface Dialer1 overload
    access-list 110 deny ip
    access-list 110 permit ip any
    route-map internet-traffic permit 10
     match ip address 110

    Author Comment

    Cheers mate worked like a treat

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