ASA 5505 ASDM VPN connection problem

[dorian888]

Hi

We are running an ASA 5505 firewall version 8.4(4)1. The ASDM version is 6.4(9).

The problem is when creating the remote access VPN connection, it works fine for about 2-3 days.

After that the VPN client cant connect anymore and gives the error code 789.

The VPN clients in this case are Windows 7 clients from different remote networks with the same problem scenario.

Windows 8.1 clients cant connect at all and show the same error code...

All the connections go throught the defaultragroup and preshare keys match on both sides.

When the user attemps to connect i get the following in the ASDM log:

6 Apr 10 2015 10:52:39 Group = DefaultL2LGroup, IP = 5.240.31.116, P1 Retransmit msg dispatched to MM FSM

5 Apr 10 2015 10:52:39 Group = DefaultL2LGroup, IP = 5.240.31.116, Duplicate Phase 1 packet detected.  Retransmitting last packet.

5 Apr 10 2015 10:53:03 IP = 5.240.31.116, Received encrypted packet with no matching SA, dropping

When i set up the remote access connection through ASDM i followed the instructions according to the following link:

http://www.databasemart.com/HowTo/Cisco_VPN_Remote_Access_Setup_ASA5500.aspx

The steps were a bit different but almost same since these instructions point to an older version

I'm interested in trying the steps according to this link but not sure id it will help me in solving the problem:

http://www.petenetlive.com/KB/Article/0000571.htm

Any help would be appreciated!

Thanks

[rizwanr74]

Please post your config for easier trouble shooting purpose.

thanks

[dorian888]

Ok, here it is.

Just realized it got prtty messed up after all configuration attempts...

ftp mode passive
clock timezone CEST 1
clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00
object network obj_any
 subnet 0.0.0.0 0.0.0.0
object network NETWORK_OBJ_192.168.168.0_28
 subnet 192.168.168.0 255.255.255.240
object network STATIC-PAT
object network PORT-FORWARD
 host 192.168.30.160
object network NETWORK_OBJ_192.168.168.8_29
 subnet 192.168.168.8 255.255.255.248
object network NETWORK_OBJ_192.168.168.12_30
 subnet 192.168.168.12 255.255.255.252
object network NETWORK_OBJ_192.168.168.0_27
 subnet 192.168.168.0 255.255.255.224
object network NETWORK_OBJ_192.168.168.16_29
 subnet 192.168.168.16 255.255.255.248
object network NETWORK_OBJ_192.168.168.24_30
 subnet 192.168.168.24 255.255.255.252
object network NETWORK_OBJ_192.168.168.16_30
 subnet 192.168.168.16 255.255.255.252
object network NETWORK_OBJ_192.168.168.20_30
 subnet 192.168.168.20 255.255.255.252
object-group network DM_INLINE_NETWORK_1
 network-object host 195.178.163.235
 network-object host 212.116.95.172
 network-object host 62.20.109.66
 network-object host 62.20.109.72
access-list WAN-IN extended permit tcp host 192.168.30.160 object PORT-FORWARD eq 3389 
access-list outside_access_in extended permit tcp object-group DM_INLINE_NETWORK_1 object PORT-FORWARD eq 3389 
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool marie 192.168.168.11-192.168.168.12 mask 255.255.255.0
ip local pool jiota 192.168.168.15-192.168.168.16 mask 255.255.255.0
ip local pool pool-vpn 192.168.168.17-192.168.168.18 mask 255.255.255.0
ip local pool vpn-pool 192.168.168.1-192.168.168.10 mask 255.255.255.0
ip local pool sto_vpnpool 192.168.168.13-192.168.168.14 mask 255.255.255.0
ip local pool dcgvpn 192.168.168.20-192.168.168.22 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.0_28 NETWORK_OBJ_192.168.168.0_28 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.8_29 NETWORK_OBJ_192.168.168.8_29 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.12_30 NETWORK_OBJ_192.168.168.12_30 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.0_27 NETWORK_OBJ_192.168.168.0_27 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.16_29 NETWORK_OBJ_192.168.168.16_29 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.24_30 NETWORK_OBJ_192.168.168.24_30 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.16_30 NETWORK_OBJ_192.168.168.16_30 no-proxy-arp route-lookup
nat (inside,outside) source static any any destination static NETWORK_OBJ_192.168.168.20_30 NETWORK_OBJ_192.168.168.20_30 no-proxy-arp route-lookup
!
object network obj_any
 nat (inside,outside) dynamic interface
object network PORT-FORWARD
 nat (inside,outside) static interface service tcp 3389 3389 
!
nat (inside,outside) after-auto source dynamic any interface
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 195.67.24.249 1
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
aaa authentication enable console LOCAL 
aaa authentication http console LOCAL 
aaa authentication ssh console LOCAL 
http server enable
http 192.168.30.0 255.255.255.0 inside
http 85.197.154.4 255.255.255.255 outside
http 85.197.154.1 255.255.255.255 outside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
sysopt noproxyarp outside
crypto ipsec ikev1 transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac 
crypto ipsec ikev1 transform-set ESP-DES-SHA esp-des esp-sha-hmac 
crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac 
crypto ipsec ikev1 transform-set ESP-DES-MD5 esp-des esp-md5-hmac 
crypto ipsec ikev1 transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac 
crypto ipsec ikev1 transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac 
crypto ipsec ikev1 transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac 
crypto ipsec ikev1 transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac 
crypto ipsec ikev1 transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac 
crypto ipsec ikev1 transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac 
crypto ipsec ikev1 transform-set TRANS_ESP_3DES_SHA esp-3des esp-sha-hmac 
crypto ipsec ikev1 transform-set TRANS_ESP_3DES_SHA mode transport
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set ikev1 transform-set TRANS_ESP_3DES_SHA
crypto map outside_map 10000 set pfs 
crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map outside_map interface outside
crypto ikev1 enable outside
crypto ikev1 policy 1
 authentication pre-share
 encryption 3des
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 10
 authentication crack
 encryption aes-256
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 20
 authentication rsa-sig
 encryption aes-256
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 30
 authentication pre-share
 encryption aes-256
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 40
 authentication crack
 encryption aes-192
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 50
 authentication rsa-sig
 encryption aes-192
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 60
 authentication pre-share
 encryption aes-192
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 70
 authentication crack
 encryption aes
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 80
 authentication rsa-sig
 encryption aes
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 90
 authentication pre-share
 encryption aes
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 100
 authentication crack
 encryption 3des
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 110
 authentication rsa-sig
 encryption 3des
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 130
 authentication crack
 encryption des
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 140
 authentication rsa-sig
 encryption des
 hash sha
 group 2
 lifetime 86400
crypto ikev1 policy 150
 authentication pre-share
 encryption des
 hash sha
 group 2
 lifetime 86400
telnet timeout 5
ssh 192.168.30.0 255.255.255.0 inside
ssh 85.197.154.4 255.255.255.255 outside
ssh 85.197.154.1 255.255.255.255 outside
ssh timeout 30
ssh version 2
ssh key-exchange group dh-group1-sha1
console timeout 0

dhcpd auto_config outside
!
dhcpd address 192.168.30.10-192.168.30.99 inside
dhcpd dns 192.168.30.151 195.67.199.27 interface inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 192.36.134.17 source outside prefer
webvpn
group-policy DefaultRAGroup_6 internal
group-policy DefaultRAGroup_6 attributes
 vpn-tunnel-protocol ikev1 l2tp-ipsec 
group-policy DefaultRAGroup_4 internal
group-policy DefaultRAGroup_4 attributes
 vpn-tunnel-protocol l2tp-ipsec 
group-policy DefaultRAGroup_5 internal
group-policy DefaultRAGroup_5 attributes
 vpn-tunnel-protocol l2tp-ipsec 
group-policy DefaultRAGroup_2 internal
group-policy DefaultRAGroup_2 attributes
 vpn-tunnel-protocol l2tp-ipsec 
group-policy DefaultRAGroup_3 internal
group-policy DefaultRAGroup_3 attributes
 vpn-tunnel-protocol l2tp-ipsec 
group-policy DefaultRAGroup internal
group-policy DefaultRAGroup attributes
 vpn-tunnel-protocol ikev1 l2tp-ipsec 
group-policy DefaultRAGroup_1 internal
group-policy DefaultRAGroup_1 attributes
 vpn-tunnel-protocol l2tp-ipsec 
username sandrak password Hrh7qYe9JbnaQ0G7/v0itA== nt-encrypted privilege 0
username sandrak attributes
 vpn-group-policy DefaultRAGroup_5
username bardnorden_marcus password dkcxs3E9NvSyv4hm8u8VWQ== nt-encrypted
username bardnorden_marcus attributes
 service-type remote-access
username dcg_butikgbg password vDl0JI2t5OShh0wiK8YWag== nt-encrypted
username dcg_butikgbg attributes
 service-type remote-access
username dcgjiota password jghEPfWYGg9USa8EuDb0wg== nt-encrypted privilege 0
username dcgjiota attributes
 vpn-group-policy DefaultRAGroup_6
username dcgsto password 7fZhsWwzDXXSnV+NVCX6OQ== nt-encrypted privilege 0
username dcgsto attributes
 vpn-group-policy DefaultRAGroup_4
username netcon_robert password YuA6XRNwArfEFjzFQnnHFA== nt-encrypted privilege 15
username netcon_robert attributes
 service-type admin
username magle_maw password woNUIxggW5iI8RMFkvDoTQ== nt-encrypted privilege 15
username magle_fo password r6WjF41WKWU+DPnQqvi4HA== nt-encrypted
username magle_fo attributes
 service-type remote-access
username marie_itero password nKesn20rgr8oESOq6zULlg== nt-encrypted privilege 0
username marie_itero attributes
 vpn-group-policy DefaultRAGroup
tunnel-group DefaultRAGroup general-attributes
 address-pool vpn-pool
 address-pool marie
 address-pool jiota
 address-pool sto_vpnpool
 address-pool pool-vpn
 address-pool dcgvpn
 default-group-policy DefaultRAGroup_6
tunnel-group DefaultRAGroup ipsec-attributes
 ikev1 pre-shared-key *****
tunnel-group DefaultRAGroup ppp-attributes
 no authentication chap
 authentication ms-chap-v2
!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum client auto
  message-length maximum 512
policy-map global_policy
 class inspection_default
  inspect dns preset_dns_map 
  inspect ftp 
  inspect h323 h225 
  inspect h323 ras 
  inspect rsh 
  inspect rtsp 
  inspect esmtp 
  inspect sqlnet 
  inspect skinny  
  inspect sunrpc 
  inspect xdmcp 
  inspect sip  
  inspect netbios 
  inspect tftp 
  inspect ip-options 
!
service-policy global_policy global
prompt hostname context 
no call-home reporting anonymous
Cryptochecksum:ed7a9a6a157068859b3ce90afea884df
: end
no asdm history enable

[rizwanr74 · Accepted solution]

Hi there,

If you are using local authentication (username and password on the ASA), then why you would require these below line?

tunnel-group DefaultRAGroup ppp-attributes
 no authentication chap
 authentication ms-chap-v2
!

Remove it and try.

[dorian888]

Hi and thanks for your reply,

I thought I needed for the tunnel group (defaultRAgroup), pre shared key and authentication for the clients. But I will check this suggestion.

Thanks!

[Mario Jose Mora Vargas]

Make sure defaultRAgroup and defaultL2Lgroup dnt have the same pre-shared key. According to loggs you were hitting DefaultL2Lgroup instead of defaultRAgroup.

ASA checks defaultL2Lgroup first, then defultRAgroup as last resource. thats why we should not use the same key for both.

let me know if that helps.

[dorian888]

Thanks, I will check it out! The VPN connection from the test clients with this new conf seems still to be working.

But my issue now is that only the Windows 7 clients can establish VPN connection but not the Windows 8.1 clients. I get error code 789 in Windows 8.1. 

Any ideas?

[dorian888]

Hi,

I added new users without the ppp-attributes and the VPN-connection works fine

at the moment. But I will have to wait 2-3 days to verify if it works.

Thanks