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New Member

remote vpn using cisco1841

Hi all,

There is problem with my remote access vpn on my cisco1841.

My vpn client have the following error while trying to establish vpn to my 1841. I was prompted for username and password but fail to connect after that.

1)No private IP address was assigned by the peer

2)Failed to process ModeCfg Reply (NavigatorTM:175)

Below is my config. Pls advise and thks in advance.

Current configuration : 5229 bytes
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname router
logging buffered 51200 warnings
username test privilege 15 password 7 066767677676
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
aaa new-model
aaa authentication login default local
aaa authentication login remotevpn local
aaa authorization exec default local
aaa authorization network remotevpn local
aaa session-id common
ip subnet-zero
ip cef
ip ips po max-events 100
no ip domain lookup
ip domain name
no ftp-server write-enable
crypto isakmp policy 10
hash md5
authentication pre-share
group 2
crypto isakmp key test address 12.x.x.x
crypto isakmp client configuration group vpn
key cisco
dns 192.x.x.x
domain test
pool vpnpool
acl split_tunnel
crypto isakmp profile vpn_client
   match identity group vpn
   client authentication list remotevpn
   isakmp authorization list remotevpn
   client configuration address respond
crypto ipsec transform-set set esp-3des esp-md5-hmac
crypto dynamic-map dynmap 10
set transform-set set
set isakmp-profile vpn_client
crypto map test 10 ipsec-isakmp
set peer 12.x.x.x
set transform-set set
match address 120
crypto map test 65535 ipsec-isakmp dynamic dynmap
interface FastEthernet0/0
ip address 10.x.x.x
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1452
duplex auto
speed auto
interface FastEthernet0/1
description $ETH-WAN$
no ip address
duplex auto
speed auto
pppoe enable
pppoe-client dial-pool-number 1
interface Dialer1
mtu 1492
ip address negotiated
ip access-group 100 in
ip nat outside
ip virtual-reassembly
encapsulation ppp
no ip mroute-cache
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication chap pap callin
ppp chap hostname test

ppp chap password test

ppp pap sent-username test password test

crypto map test
ip local pool vpnpool 192.x.x.1 192.x.x.10
ip classless
ip route Dialer1 permanent
ip http server
ip http authentication local
ip http secure-server
ip nat inside source route-map nonat interface Dialer1 overload
ip nat inside source static tcp 10.x.x.x 443 6.x.x.x 443 extendable
ip nat inside source static tcp 10.x.x.x 80 6.x.x.x 80 extendable

ip access-list extended inbound
evaluate mis
ip access-list extended outbound
permit ip any any reflect mis
ip access-list extended split_tunnel
permit ip 10.x.x.x 192.x.x.x
access-list 1 permit any
access-list 100 permit tcp any host 6.x.x.x eq 443
access-list 100 permit tcp host 2.x.x.x host 6.x.x.x eq 80
access-list 100 permit udp any any
access-list 100 permit icmp any any
access-list 100 permit tcp any any established
access-list 100 permit tcp any any ack
access-list 100 permit tcp any any psh
access-list 100 permit tcp any eq domain any
access-list 100 permit esp any any
access-list 100 permit tcp any host 6.x.x.x eq 22
access-list 110 remark SDM_ACL Category=18
access-list 110 deny   ip 10.x.x.0 192.x.x.0
access-list 110 deny   ip 10.x.x.0 192.x.x.0
access-list 110 permit ip 10.x.x.0 any
access-list 120 permit ip 10.x.x.0 1.x.x.0
dialer-list 1 protocol ip permit
snmp-server enable traps tty
route-map nonat permit 10
match ip address 110
banner login ^C
line con 0
line aux 0
line vty 0 4
privilege level 15
transport input ssh
line vty 5 15
privilege level 15
transport input ssh

Super Bronze

Re: remote vpn using cisco1841

Please turn on logs on the VPN Client, and also enable debug on the router:

debug cry isa

debug cry ipsec

Try to connect with the vpn client, and collect all the logs to further investigate the issue.

New Member

Re: remote vpn using cisco1841

Hi Jennifer,

Thks. it turn out that it was the isp routing issue problem. Once they change the routing path, problem was solved.

Can you advise how i can configure split dns in my 1841? My split tunneling works but i need split dns. THks in advance.

Super Bronze

Re: remote vpn using cisco1841

You can configure split-dns command in the vpn client group configuration:

However, I believe it might only be supported from version 12.4 onwards.