10-31-2012 08:47 AM - edited 02-21-2020 06:27 PM
Hi!
Just sat up a new Anyconnect VPN solution for a customer. It works almost perfect.
The anyconnect users cannot reach the internal network storage. The anyconnect users can reach the internet but nothing on the internal network.
(Have removed all passwords and public IP adresses)
ASA Version 8.4(4)1
!
hostname ciscoasa
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 192.168.9.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address
!
ftp mode passive
dns domain-lookup outside
dns server-group DefaultDNS
name-server 213.80.98.2
name-server 213.80.101.3
object network obj_any
subnet 0.0.0.0 0.0.0.0
access-list NONAT extended permit ip 192.168.9.0 255.255.255.0 192.168.9.0 255.255.255.0
access-list AnyConnect_Client_Local_Print extended deny ip any any
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq lpd
access-list AnyConnect_Client_Local_Print remark IPP: Internet Printing Protocol
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq 631
access-list AnyConnect_Client_Local_Print remark Windows' printing port
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq 9100
access-list AnyConnect_Client_Local_Print remark mDNS: multicast DNS protocol
access-list AnyConnect_Client_Local_Print extended permit udp any host 224.0.0.251 eq 5353
access-list AnyConnect_Client_Local_Print remark LLMNR: Link Local Multicast Name Resolution protocol
access-list AnyConnect_Client_Local_Print extended permit udp any host 224.0.0.252 eq 5355
access-list AnyConnect_Client_Local_Print remark TCP/NetBIOS protocol
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq 137
access-list AnyConnect_Client_Local_Print extended permit udp any any eq netbios-ns
pager lines 24
logging enable
logging asdm debugging
mtu inside 1500
mtu outside 1500
ip local pool SSLClientPool 192.168.9.50-192.168.9.80 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat (inside,outside) source dynamic any interface
!
object network obj_any
nat (inside,outside) dynamic interface
route outside 0.0.0.0 0.0.0.0 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 serial console LOCAL
aaa authentication ssh console LOCAL
aaa authentication telnet console LOCAL
http server enable
http 192.168.9.0 255.255.255.0 inside
http 0.0.0.0 0.0.0.0 inside
http 0.0.0.0 0.0.0.0 outside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
telnet timeout 5
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd auto_config outside
!
dhcpd address 192.168.9.2-192.168.9.33 inside
dhcpd option 3 ip 192.168.9.1 interface inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
enable outside
anyconnect image disk0:/anyconnect-win-2.5.3046-k9.pkg 1
anyconnect enable
tunnel-group-list enable
group-policy SSLClitentPolicy internal
group-policy SSLClientPolicy internal
group-policy SSLClientPolicy attributes
dns-server value 192.168.9.5
vpn-tunnel-protocol ssl-client
address-pools value SSLClientPool
group-policy DfltGrpPolicy attributes
vpn-tunnel-protocol ikev1 ikev2 l2tp-ipsec ssl-client ssl-clientless
tunnel-group VPN type remote-access
tunnel-group SSLClientProfile type remote-access
tunnel-group SSLClientProfile general-attributes
default-group-policy SSLClientPolicy
tunnel-group SSLClientProfile webvpn-attributes
group-alias SSLVPNClient enable
!
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:6a58e90dc61dfbf7ba15e059e5931609
: end
Solved! Go to Solution.
11-01-2012 01:47 PM
Looks like you have the permit-vpn sysopt disable, to enable it:
sysopt connection permit-vpn
Also remove the following dynamic NAT as you already have that configured under the object NAT:
no nat (inside,outside) source dynamic any interface
Then "clear xlate" again, and let us know if it works now.
10-31-2012 09:49 AM
Hello,
It is not really recomended to use VPN client pool and inside network as same. Please use a different subnet for VPN client
and also do the NONAT for inside to VPN pool subnet.
please let me know if you need any help in doing that
Harish
10-31-2012 11:13 AM
I'm having some issues too but my issue is getting to the internet via vpn. Here is the discussion, do you think you can assist?
10-31-2012 10:05 PM
Hello Mohammad
Could you give me the latest config so that we can start troubleshooting
regards
Harish
11-01-2012 02:07 AM
Hello!
I had that problem too before. These commands solved the problems for me.
You need to do the following in order to enable split tunneling for anyconnect ssl vpn:
1) first create an access list for the split tunnel. This access list should include your internal network range:
ASA(config)#access-list split-tunnel standard permit 192.168.1.0 255.255.255.0
2) Then assign this ACL into the SSL group poilicy
ASA(config)# group-policy SSLCLientPolicy internal
ASA(config)# group-policy SSLCLientPolicy attributes
ASA(config-group-policy)# split-tunnel-policy tunnelspecified
ASA(config-group-policy)# split-tunnel-network-list value split-tunnel
11-01-2012 02:06 AM
Doesn't seem to work. Maybe it is me that writes the wrong command. Can you help me by showing me how the command should look like?
Regards Hampus
11-01-2012 02:30 AM
Hello
The above mentioned commands are correct assuming that your internal network is 192.168.1.0/24 and vpn pool is 192.168.9.0, then you need to have a nonat as follows
access-list nonat extended permit ip 192.168.1.0 255.255.255.0 192.168.9.0 255.255.255.0
nat (inside) 0 access-list nonat
regards
Harish
11-01-2012 02:59 AM
Hi!
The commands mentioned above solved my problem that the users couldn't access internet. (internal network ip address is not correct above)
I have one access-list that says :
access-list NONAT extended permit ip 192.168.9.0 255.255.255.0 192.168.9.0 255.255.255.0
I cannot write "nat (inside) 0 access-list nonat" gets the following message
ERROR: This syntax of nat command has been deprecated.
Please refer to "help nat" command for more details.
I am running asa version 8.4 and the nat (inside) command doesn't work in that version.
11-01-2012 03:12 AM
Hello
Assuming your inside network is 192.168.1.0/24 and vpn pool is 192.168.9.0/24 then
object network inside
subnet 192.168.1.0 255.255.255.0
object network vpnpool
subnet 192.168.9.0 255.255.255.0
nat (inside,outside) source static inside vpnpool destination static inside vpnpool
regards
Harish
11-01-2012 03:49 AM
Hi!
I run the commands:
object network inside
subnet 192.168.9.0 255.255.255.0
object network vpnpool
subnet 192.168.100.0 255.255.255.0
nat (inside,outside) source static inside vpnpool destination static inside vpnpool
But it still doesn't work. I believe there is something with the nat thats not correct in my config.
11-01-2012 03:50 AM
The NAT statement should have been:
nat (inside,outside) source static inside inside destination static vpnpool vpnpool
Then, "clear xlate".
11-01-2012 04:37 AM
Thanks for the correction Jennifer.
11-01-2012 05:02 AM
Hi all!
Jennifer, i run your commands but it still doesn't work. I can not ping, telnet, RDP, or open in explorer. If it is not the nat that's the problem, what could it be?
11-01-2012 07:15 AM
This is the running-config, it would be very good if someone could say what i should do to let VPN users access the internal network.
ASA Version 8.4(4)1
!
hostname
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 192.168.9.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address
!
ftp mode passive
dns domain-lookup outside
dns server-group DefaultDNS
name-server
name-server
object network obj_any
subnet 0.0.0.0 0.0.0.0
object network vpnpool
subnet 192.168.100.0 255.255.255.0
description vpnpool
object network inside
subnet 192.168.9.0 255.255.255.0
object network NONAT
subnet 192.168.100.0 255.255.255.0
object network SSLClientPool
subnet 192.168.100.0 255.255.255.0
object-group network VPN
access-list NONAT extended permit ip 192.168.9.0 255.255.255.0 192.168.9.0 255.255.255.0
access-list NONAT extended permit ip 192.168.9.0 255.255.255.0 192.168.100.0 255.255.255.0
access-list AnyConnect_Client_Local_Print extended deny ip any any
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq lpd
access-list AnyConnect_Client_Local_Print remark IPP: Internet Printing Protocol
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq 631
access-list AnyConnect_Client_Local_Print remark Windows' printing port
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq 9100
access-list AnyConnect_Client_Local_Print remark mDNS: multicast DNS protocol
access-list AnyConnect_Client_Local_Print extended permit udp any host 224.0.0.251 eq 5353
access-list AnyConnect_Client_Local_Print remark LLMNR: Link Local Multicast Name Resolution protocol
access-list AnyConnect_Client_Local_Print extended permit udp any host 224.0.0.252 eq 5355
access-list AnyConnect_Client_Local_Print remark TCP/NetBIOS protocol
access-list AnyConnect_Client_Local_Print extended permit tcp any any eq 137
access-list AnyConnect_Client_Local_Print extended permit udp any any eq netbios-ns
access-list split-tunnel standard permit 192.168.9.0 255.255.255.0
access-list NONAT-inside extended permit ip 192.168.9.0 255.255.255.0 192.168.9.0 255.255.255.0
pager lines 24
logging enable
logging asdm debugging
mtu inside 1500
mtu outside 1500
ip local pool SSLClientPool 192.168.100.1-192.168.100.50 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
icmp deny any outside
no asdm history enable
arp timeout 14400
nat (inside,outside) source dynamic any interface
nat (inside,outside) source static inside inside destination static vpnpool vpnpool
!
object network obj_any
nat (inside,outside) dynamic interface
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 serial console LOCAL
aaa authentication ssh console LOCAL
aaa authentication telnet console LOCAL
http server enable
http 192.168.9.0 255.255.255.0 inside
http 0.0.0.0 0.0.0.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
no sysopt connection permit-vpn
telnet timeout 5
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
management-access inside
dhcpd auto_config outside
!
dhcpd address 192.168.9.2-192.168.9.33 inside
dhcpd option 3 ip 192.168.9.1 interface inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
enable outside
anyconnect image disk0:/anyconnect-win-2.5.3046-k9.pkg 1
anyconnect enable
tunnel-group-list enable
group-policy SSLClientPolicy internal
group-policy SSLClientPolicy attributes
dns-server value
vpn-tunnel-protocol ssl-client
split-tunnel-policy tunnelspecified
split-tunnel-network-list value split-tunnel
default-domain none
address-pools value SSLClientPool
group-policy DfltGrpPolicy attributes
vpn-tunnel-protocol ikev1 ikev2 l2tp-ipsec ssl-client ssl-clientless
tunnel-group VPN type remote-access
tunnel-group SSLClientProfile type remote-access
tunnel-group SSLClientProfile general-attributes
default-group-policy SSLClientPolicy
tunnel-group SSLClientProfile webvpn-attributes
group-alias SSLVPNClient enable
!
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
inspect icmp
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:d8fc3131a7f33dc2410e4df1b3a9c71e
: end
Regards Hampus
11-01-2012 01:47 PM
Looks like you have the permit-vpn sysopt disable, to enable it:
sysopt connection permit-vpn
Also remove the following dynamic NAT as you already have that configured under the object NAT:
no nat (inside,outside) source dynamic any interface
Then "clear xlate" again, and let us know if it works now.
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