Need VPN help, can't contact remote.

Posted on 2004-09-04
Last Modified: 2010-04-12
Hello All,

Finally got my vpn to work somewhat.


Cisco 1720 (VPN Endpoint?)  ---> Cisco 2514 --> Cisco VPN client v4

I am able to establish connection and receive an IP from the local pool on the 1720. I am also able to ping from 1720 to vpn client but not from client to internal net of 1720. I added an acl to the vpn group for split tunneling. I have also tried this without the 2514 in the way and still same results. Any ideas?

Question by:GR999
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Author Comment

ID: 11980613
Ok I can ping at the moment, but cannot access service on internal workstations. Checked all acls to allow comm back and forth, everything seems fine.


Author Comment

ID: 11981360
Here is my config:

aaa new-model
aaa authentication login user local
aaa authorization network group local
aaa session-id common

username vpnuser password 0 password
ip subnet-zero
ip name-server y.y.y.y
ip name-server y.y.y.y
ip dhcp database tftp://x.x.1.240/dhcpdata
ip dhcp excluded-address x.x.1.1
ip dhcp pool HOME
   network x.x.1.0
   dns-server y.y.y.y y.y.y.y
   default-router x.x.1.1
   lease infinite
ip audit notify log
ip audit po max-events 100
ip cef
crypto isakmp policy 3
 encr 3des
 authentication pre-share
 group 2
crypto isakmp client configuration group 1720client
 key cisco123
 dns y.y.y.y y.y.y.y
 pool vpnpool
 acl 102
crypto ipsec transform-set myset esp-3des esp-sha-hmac
crypto dynamic-map dynmap 10
 set transform-set myset
crypto map mymap client authentication list user
crypto map mymap isakmp authorization list group
crypto map mymap client configuration address respond
crypto map mymap 10 ipsec-isakmp dynamic dynmap
interface Ethernet0
 ip address y.y.y.y
 ip access-group 103 in
 ip nat outside
 crypto map mymap
interface FastEthernet0
 ip address x.x.1.1
 ip nat inside
ip local pool vpnpool x.x.2.21
ip nat inside source list 1 interface Ethernet0 overload
ip classless
ip route y.y.y.y
no ip http server
access-list 1 permit x.x.1.0

access-list 102 permit ip x.x.1.0 host x.x.2.21

access-list 103 permit ip host x.x.2.21 any
access-list 103 permit tcp any any established
access-list 103 permit icmp any any
access-list 103 permit udp host y.y.y.y eq domain any
access-list 103 permit udp host y.y.y.y eq domain any
access-list 103 permit ip host y.y.y.y any
access-list 103 deny   ip any any log


LVL 79

Accepted Solution

lrmoore earned 250 total points
ID: 11982205
You need to change your nat statement:

>ip nat inside source list 1 interface Ethernet0 overload

To this:
    ip nat inside source route-map no_nat interface Ethernet 0 overload

   access-list 101 deny ip x.x.1.0  x.x.2.0
                                  <local IP> <mask>      <vpnpool> <mask>
   access-list 101 permit ip x.x.1.0 any

 route-map no_nat permit 10
   match ip address 101



Author Comment

ID: 11984455
Thanks alot lrmoore. Works great now. Appreciate all the help!


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