08-30-2010 07:18 AM
Dear all,
I am a new in this forum and don´t have a lot experiance with Cisco , so that I hope that I can have help from the side of specialists.
I have following problem:
I installed und konfigured ASA 5505 for using with vpn client. I would like to give access from outside through vpn to the local network.
For testing I installed ASA 5505 with ADSL connection (pppoe) and tried to give access to internal network.
Of course everytime I recive different IP address from provider, but it is not a problem reconfigure it in the vpn client.
After connection is established (vpn tunnel is working) I can see packages from my outside network. But I don´t have any connection to internal network.
I cleared my configuration yesterday and tried reconfigure ASA again. I didn´t tested it again yesterday, because it was to late. And I know that I don´t have permission rule at the moment by ACL. But I think that I will have the same problem again.( tunnel but no traffic).
What I do wrong. Could anybody let me know what I have to do today.
With hope on your help Dimitri.
Configuration of ASA after reset and basic configuration: Internet from inside of course is working.
: Saved
: Written by enable_15 at 20:29:18.909 CEDT Sun Aug 29 2010
!
ASA Version 8.2(2)
!
hostname ciscoasa
enable password 2KFQnbNIdI.2KYOU encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
pppoe client vpdn group home
ip address pppoe setroute
!
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
!
boot system disk0:/asa822-k8.bin
ftp mode passive
clock timezone CEST 1
clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00
dns domain-lookup outside
dns server-group DefaultDNS
name-server 194.25.0.60
name-server 194.25.0.68
object-group service DM_INLINE_TCP_1 tcp
port-object eq www
port-object eq https
access-list inside_access_in extended permit udp 192.168.1.0 255.255.255.0 any eq domain log debugging
access-list inside_access_in extended permit tcp 192.168.1.0 255.255.255.0 any object-group DM_INLINE_TCP_1 log debugging
access-list inside_access_in extended deny ip any any log debugging
access-list inside_nat0_outbound extended permit ip 192.168.1.0 255.255.255.0 192.168.0.0 255.255.0.0
access-list inside_nat0_outbound extended permit ip 192.168.10.0 255.255.255.0 192.168.10.0 255.255.255.128
access-list homegroup_splitTunnelAcl standard permit 192.168.10.0 255.255.255.0
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
ip local pool homepool 192.168.10.1-192.168.10.100 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-625-53.bin
asdm location 192.168.0.0 255.255.0.0 inside
asdm location 192.168.10.0 255.255.255.0 inside
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
access-group inside_access_in in interface inside
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
dynamic-access-policy-record DfltAccessPolicy
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
vpdn group home request dialout pppoe
vpdn group home localname 04152886790
vpdn group home ppp authentication pap
vpdn username 04152886790 password 1
dhcpd auto_config outside
!
dhcpd address 192.168.1.5-192.168.1.36 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
tftp-server inside 192.168.1.5 c:/tftp-root
webvpn
group-policy homegroup internal
group-policy homegroup attributes
dns-server value 192.168.1.1
vpn-tunnel-protocol IPSec
split-tunnel-policy tunnelspecified
split-tunnel-network-list value homegroup_splitTunnelAcl
username user01 password v5P40l1UGvtJa7Nn encrypted privilege 0
username user01 attributes
vpn-group-policy homegroup
tunnel-group homegroup type remote-access
tunnel-group homegroup general-attributes
address-pool homepool
default-group-policy homegroup
tunnel-group homegroup ipsec-attributes
pre-shared-key ciscotest
!
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
Cryptochecksum:930e6cddf25838e47ef9633dc2f07acb
: end
Solved! Go to Solution.
08-30-2010 07:29 AM
Hi,
Normally you want a static public IP on the ASA to allow it to receive VPN client connections (avoid changing the IP all the times).
If you connect via VPN check the following:
1. The tunnel is established:
sh cry isa sa
It should say QM_IDLE or MM_ACTIVE
2. Traffic is flowing (encrypted/decrypted):
sh cry ips sa
3. Enter the command:
management-access inside
And check if you can PING the inside IP of the ASA from the VPN client.
4. Check that the default gateway for the internal LAN is the ASA's inside IP (or there's a route pointing to the ASA to send traffic back to the VPN clients).
Federico.
09-03-2010 07:38 AM
Hello,
So before the tunnel is established, you have a public IP on the PC?
Regards,
NT
09-03-2010 09:03 AM
Hello,
OK, the packet tracer says that the communication is allowed. Can you try to
ping 192.168.1.1 from the VPN client?
Regards,
NT
09-03-2010 09:24 AM
Hello,
Your configuration looks good. Yes, configuring split tunneling is a good
thing. Here is a sample configuration for windows authentication:
aaa-server test protocol nt
aaa-server test (management) host test.abc.com
nt-auth-domain-controller test
aaa-server test (management) host 192.168.1.2
nt-auth-domain-controller test
tunnel-group RMT general-attributes
address-pool RMTPool
authentication-server-group test LOCAL
default-group-policy RMT
This will allow all domain users access to the VPN.
Hope this helps.
Regards,
NT
08-30-2010 07:29 AM
Hi,
Normally you want a static public IP on the ASA to allow it to receive VPN client connections (avoid changing the IP all the times).
If you connect via VPN check the following:
1. The tunnel is established:
sh cry isa sa
It should say QM_IDLE or MM_ACTIVE
2. Traffic is flowing (encrypted/decrypted):
sh cry ips sa
3. Enter the command:
management-access inside
And check if you can PING the inside IP of the ASA from the VPN client.
4. Check that the default gateway for the internal LAN is the ASA's inside IP (or there's a route pointing to the ASA to send traffic back to the VPN clients).
Federico.
08-30-2010 07:44 AM
Hi,
first thank you for your answer.
The both of the 2 questions I can answer with yes.
The third point. I hadn´t "management-access inside" use before and could´t ping anything from vpn network 192.168.10.0/24 to the internal network 192.168.1.0/24. But I thinked that this commnad give only which interace is management interface and don´t importan for traffic from outside interface.
OK I will check it in some hours.
I didn´t configure any static routing for ASA.
Default gateway shoul be through a command "ip address pppoe setroute". It should be alwaya the actual IP address from pppoe.
For the intenal network I think it must be deafult 192.168.1.1 (the interface itself) becasue I am in the same network.
Am I rigth?
Before I couldn´t ping anything in ineranal network 192.168.1.0/24 also not a IP of interface 192.168.1.1.
Best regards,
Dimitri
08-30-2010 07:50 AM
Yes but we're talking about two separate things here:
One default gateway is for the ASA (as it is acting as PPPoE client it will obtain an IP and gateway dynamically, you should verify this checking that the ASA has Internet access).
The other default gatway is for the internal LAN (should point to the inside IP of the ASA).
In this way traffic for the VPN should be returned to the ASA.
Just as a tip... I'll never assume, I'll prefer to confirm :-)
Federico.
08-30-2010 08:00 AM
I am confused. Do you mean that I have to add static route?
route inside 192.168.1.0 255.255.255.0 192.168.1.1
What about the route for my vpn network192.168.10.0/24?
I thinked that I need to add route:
route outside 192.168.10.0 255.255.255.0 x.x.x.x. Where x.x.x.x my actual IP adress of outside interface.
or it should be?
route inside 192.168.10.0 255.255.255.0 x.x.x.x.
08-30-2010 08:50 AM
Let me put it this way...
You have the inside IP of the ASA:
ip address 192.168.1.1 255.255.255.0
This means that the deafult gateway for the inside LAN (192.168.1.0/24) should be 192.168.1.1
There's no need to add any route on the ASA for this (just check that the default gateway on the LAN is the ASA's inside IP).
On the other hand, the ASA should obtain a default gateway for its own connection to the Internet (via PPPoE).
Once connected you can check
sh route
And check if there's a default gateway for the ASA.
There's no need for a route to 192.168.10.0/24 because there are no additional routes on the ASAs and therefore will use the default gateway to send traffic to the VPN clients.
Federico.
08-30-2010 08:52 AM
Hi,
One thing i noticed wrong in the configuration is the split ACL you have configured:
access-list homegroup_splitTunnelAcl standard permit 192.168.10.0 255.255.255.0
This is incorrect: Your internal LAN is 192.168.1.0/24 while the pool of IPs for the clients is 192.168.10.0/24. Kindly change the above ACL to
access-list homegroup_splitTunnelAcl standard permit 192.168.1.0 255.255.255.0
Try this out and Let me know how it goes!! all the best.
Regards,
Prapanch
08-30-2010 10:23 PM
I did yesterday some changes and checks.
I can ping from internal interface of ASA (Internal network 192.168.1.0/24) the client through tunnel. Also I can ping from client though vpn tunnel internal interface of ASA 192.168.1.1.
I configured yesterday some rules for access from vpn client to internal network (rdp and icmp).
But these rules are still not working.
Below the current configuration and also result from tests which you are proposed.
: Saved
: Written by enable_15 at 21:05:21.109 CEDT Mon Aug 30 2010
!
ASA Version 8.2(2)
!
hostname ciscoasa
enable password 2KFQnbNIdI.2KYOU encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
pppoe client vpdn group home
ip address pppoe setroute
!
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
!
boot system disk0:/asa822-k8.bin
ftp mode passive
clock timezone CEST 1
clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00
dns domain-lookup outside
dns server-group DefaultDNS
name-server 194.25.0.60
name-server 194.25.0.68
object-group service DM_INLINE_TCP_1 tcp
port-object eq www
port-object eq https
object-group service rdp tcp
port-object eq 3389
access-list inside_access_in extended permit udp 192.168.1.0 255.255.255.0 any eq domain log debugging
access-list inside_access_in extended permit tcp 192.168.1.0 255.255.255.0 any object-group DM_INLINE_TCP_1 log debugging
access-list inside_access_in extended permit icmp 192.168.1.0 255.255.255.0 192.168.10.0 255.255.255.0 log debugging
access-list inside_access_in extended deny ip any any log debugging
access-list inside_nat0_outbound extended permit ip 192.168.0.0 255.255.0.0 192.168.0.0 255.255.0.0
access-list homegroup_splitTunnelAcl standard permit 192.168.10.0 255.255.255.0
access-list homegroup_splitTunnelAcl standard permit 192.168.1.0 255.255.255.0
access-list outside_access_in extended permit tcp any 192.168.1.0 255.255.255.0 object-group rdp log debugging
access-list outside_access_in extended permit ip any any log debugging inactive
access-list outside_access_in extended permit icmp any 192.168.1.0 255.255.255.0 log debugging
access-list outside_access_in extended deny ip any any log debugging
access-list outside_nat0_outbound extended permit ip 192.168.10.0 255.255.255.0 192.168.1.0 255.255.255.0
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool homepool 192.168.10.1-192.168.10.100 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-625-53.bin
asdm location 192.168.0.0 255.255.0.0 inside
asdm location 192.168.10.0 255.255.255.0 inside
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
nat (outside) 0 access-list outside_nat0_outbound
access-group inside_access_in in interface inside
access-group outside_access_in in interface outside
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
dynamic-access-policy-record DfltAccessPolicy
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
crypto isakmp ipsec-over-tcp port 10000
telnet timeout 5
ssh timeout 5
console timeout 0
management-access inside
vpdn group home request dialout pppoe
vpdn group home localname 04152886790
vpdn group home ppp authentication pap
vpdn username 04152886790 password 1
dhcpd auto_config outside
!
dhcpd address 192.168.1.5-192.168.1.36 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
tftp-server inside 192.168.1.5 c:/tftp-root
webvpn
group-policy homegroup internal
group-policy homegroup attributes
vpn-tunnel-protocol IPSec
split-tunnel-policy tunnelspecified
split-tunnel-network-list value homegroup_splitTunnelAcl
username user01 password v5P40l1UGvtJa7Nn encrypted privilege 0
username user01 attributes
vpn-group-policy homegroup
tunnel-group homegroup type remote-access
tunnel-group homegroup general-attributes
address-pool homepool
default-group-policy homegroup
tunnel-group homegroup ipsec-attributes
pre-shared-key ciscotest
!
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
Cryptochecksum:e6dabaa1db8d57388d612aba9f3be5ce
: end
08-30-2010 10:24 PM
Forgot to say. splitt of tunnelis working. I can surf in Internet and
have also tunnel.
08-30-2010 10:27 PM
You should remove the following line and "clear xlate":
nat (outside) 0 access-list outside_nat0_outbound
Then pls try to reconnect the VPN again.
09-03-2010 06:57 AM
sorry. I was not able to anwer, because we had some other technical problem.
I tried remove proposed from your side line. and also made clear xlate. reconnect again. Still doesn´t work.
Could anybody check the configuration again. What is still wrong? I tried remote desktop from 192.168.10.1 to 192.168.1.5
help!!
09-03-2010 07:23 AM
is this ok that i don´t see default gateway for my private ip address
192.168.10.1
09-03-2010 07:31 AM
Hello,
What is the IP of your PC from where you are trying the VPN? Is it in
192.168.1.x subnet as well (behind a home router)?
Regards,
NT
09-03-2010 07:35 AM
No i use for connection umts for testing. I have private ip address after tunnel is established I have 192.168.10.1/255.255.255.0. This IP is from my vpn pool.
No gateway with ip config. Do I need any nat rules for vpn pool? Or I have configured something wrong for my pool?
best regadrds, dimitri
09-03-2010 07:38 AM
Hello,
So before the tunnel is established, you have a public IP on the PC?
Regards,
NT
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