IPSec remote VPN with VPN client giving error

[sapdhanoa83]

Hi ,

ASA 5505 current configuration is : (setup using ASDM)

esult of the command: "show running-config"

: Saved
:
ASA Version 8.2(5)
!
hostname TEST

enable password ___________ encrypted
passwd __________ encrypted
names
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address dhcp setroute
!
ftp mode passive
access-list sap_vpn_splitTunnelAcl standard permit 192.168.1.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip 192.168.1.0 255.255.255.0 192.168.10.0 255.255.255.224
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool test_pool 192.168.10.0-192.168.10.20 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound
nat (inside) 1 0.0.0.0 0.0.0.0
timeout xlate 3:00:00
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
aaa authentication http console LOCAL
http server enable
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs group1
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
dhcpd address 192.168.1.5-192.168.1.132 inside
dhcpd enable inside
!

threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
group-policy sap_vpn internal
group-policy sap_vpn attributes
dns-server value 192.168.2.1
vpn-tunnel-protocol IPSec
split-tunnel-policy tunnelspecified
split-tunnel-network-list value sap_vpn_splitTunnelAcl
username test password ____________ encrypted privilege 0
username test attributes
vpn-group-policy sap_vpn
username TEST password ________________ encrypted privilege 15
tunnel-group sap_vpn type remote-access
tunnel-group sap_vpn general-attributes
address-pool test_pool
default-group-policy sap_vpn
tunnel-group sap_vpn ipsec-attributes
pre-shared-key *****
!
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:b67cdffbb9567f754052e72f69ef95f1
: end

I am using VPN client with host IP 192.168.2.20 and group authentication with username:sap_vpn and preshared key as password but could not connect to vpn and getting attached error message.

ASA set up with ASDM initial wizard: inside interface (VLAN1) IP 192.168.1.1 and outside (VLAN2) IP 192.168.2.20 assigned using DHCP. I am using outside interface IP 192.168.2.20 for HOST IP in VPN client for remote connection??? is it right??

please advise for this.

[andduart · Accepted solution]

Hi,

What about trying a static IP on the Outside? We need a static IP in order to connect, could you try again and let us know how it works?

Regards,

[harshisi_2 · Accepted solution]

Hi,

The set up is not correct, first, 192.168.2.20 is a private IP and is not reachable via internet, Try going to ipchicken.com from a pc on the inside to get to know your public ip address and then try using that ip for host.

though this is not a preffered way to implement and we strongly suggest to use a public ip because as soon as the modem gets rebooted the ip address will be changed.

HTH

~Harry

[sapdhanoa83]

Thanks Harry and Andrus,

I am connecting my home network (bell internet) to ASA through bell modem.

For assigning outside interface I am using DHCP and it is assigning private  IP to outside interface.

I know my public IP by going to whatismyip.com or ipchicken.com but how should I assign this IP to outside interface of ASA.

Please advise.

Thanks,

Sap Dhanoa

[Alan Huseyin Kayahan · Accepted solution]

Hello Sap,

Best practise is to configure your modem in bridge mode and let ASA have the public IPs directly.

Second best practise is in your bell modem configure DMZ and specify 192.168.2.20 as the DMZ host.

Third and worst practise is to lookup for necessary ports for VPN on google and forward those one by one.

However before coming to public IP discussion, I see that you are trying to VPN to the outside IP address of the ASA, which should technically work if your laptop is also in 192.168.2.0/24 network (while testing your VPN, you should unplug your computers communication with inside network which is 192.168.1.0/24 and move it to 2.0/24)

If the conditions in paranthesis above are met, then something is wrong with the VPN configuration. I would suggest you to enable ASDM logging, then try VPN again and take the screenshot of the logs that occured and post here.

Regards

[sapdhanoa83]

Thanks Husy,

could you please eloborate more for " configure your modem in bridge mode".

I want to ASA should take public IP Directly.

I am attaching here my bell home modem configuration.(pls see the attached)

I think VPN settings are fine, I can not access VPN because outside interface for ASA is not taking public IP.

please advice

thanks,

Sap

[Alan Huseyin Kayahan · Accepted solution]

Sap,

Basicaly you turn your modem into nothing but a medium converter. That means your existing configuration (such as port forwardings etc) will be gone. In full bridge mode, ASA is doing the dial-up connection.

I dont know your full modem type but found the following link for configuring bell modem in bridge mode.

http://www.wikihow.com/Set-Your-Bell-2Wire-2701Hg-G-Modem-Router-to-Bridge-Mode

After that, you have to configure your ASA for dial-up.

http://www.net-gyver.com/?p=1405

Cheers!

[andduart · Accepted solution]

Hi,
I would call your Local ISP to check that so we wont affect other services. Also, make sure on having a static ip address, that ip will be used to connect from the outside and configured on the ASA external IP address

Regards,

Sent from Cisco Technical Support iPhone App

[andduart]

Hi,
I would call your Local ISP to check that so we wont affect other services. Also, make sure on having a static ip address, that ip will be used to connect from the outside and configured on the ASA external IP address

Regards,

Sent from Cisco Technical Support iPhone App

[sapdhanoa83]

Hi Husy and Andrus,

Thanks for your help!

I have called my ISP and I can not change my home modem in bridge mode.

how can I get static IP to connect from outside and configure on the ASA external IP address??

I have edited outside interface as PPPOE client (as screen shot attached), but then I can not access internet.

I have seen three options to configure outside interface for ASA: static IP, using DHCP and PPPOE client and results are as below:

using DHCP: it is assigning private IP to outside interface

Using PPPOE: I can not access internet

static IP : do I have to apply for static IP??

Please see the attached screen shots and advise me.

Thanks,

Sap

[Alan Huseyin Kayahan]

Sap,

If you can not configure the modem in bridge mode, configuring ASA outside interface in PPPOE mode is useless.

Your next shot is DMZ functionality. Some modems have the option to assign the public IP to host specified as DMZ.

What is your modem's model number?

[sapdhanoa83]

Thanks,

Bell modem is "2wire 2701HG-G"

tHANKS,

sAP

[Alan Huseyin Kayahan · Accepted solution]

That modem supports bridge mode, and how it is done is in the link I have previously posted. Did your ISP say that it doesnt support?

[sapdhanoa83]

Thanks Husy,

ISP is not giving me MDC password, only have PPPOE username and password.so I can not change Bell model to bridge mode.

anyway I got D-LINK DIR-601.

Can I connect D-link and configure in bridge mode and then try PPPOE login on ASA???

Please advise

thanks,

Sapinder

[Alan Huseyin Kayahan · Accepted solution]

A quick google shows that DIR-601 does not support bridge mode.

Your best bet looks like trying DMZ host option.