Unable to access internal networks over Remote acces VPN

Question

Hi,
I have set up a Remote access VPN from Home to Cisco ASA 5512-X.
I am able to connect successfully and even getting a valid IP address from VPN pool 172.21.3.1-. However I am unable to access any of the internal resources.
Internal Network: 172.20.0.0 255.255.0.0
Please if someone can help identifying the issue.
Below is the running config:-
Result of the command: "sh run"
: Saved
ASA Version 9.1(1)
hostname ASA
domain-name M8fl.com
enable password Aoz9GlxLLvkWrTUy encrypted
passwd Gc1jA6zbgOsj63RW encrypted
names
ip local pool vpnclients 172.21.3.1-172.21.3.20 mask 255.255.0.0
ip local pool test 172.21.3.21-172.21.3.40 mask 255.255.255.0
interface GigabitEthernet0/1
 nameif inside
 security-level 100
 ip address 172.20.254.250 255.255.0.0
interface GigabitEthernet0/2
 description vodafone 100mb internet 195.11.180.40_29
 speed 100
 duplex full
 nameif outside1
 security-level 1
 ip address 195.11.180.42 255.255.255.248
interface GigabitEthernet0/3
 description Voice
 nameif Voice
 security-level 80
 ip address 192.168.2.1 255.255.255.252
interface GigabitEthernet0/4
 shutdown
 no nameif
 no security-level
 no ip address
interface GigabitEthernet0/5
 shutdown
 no nameif
 no security-level
 no ip address
interface Management0/0
 management-only
 nameif management
 security-level 100
 ip address 192.168.1.1 255.255.255.0
boot system disk0:/asa911-smp-k8.bin
ftp mode passive
clock timezone GMT 0
dns domain-lookup inside
dns domain-lookup outside1
dns domain-lookup management
dns server-group DefaultDNS
 name-server 10.0.0.4
 name-server 172.20.0.100
 domain-name M8fl.com
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network VLAN1
 subnet 172.20.0.0 255.255.0.0
object network NETWORK_OBJ_172.20.3.0_27
 subnet 172.21.3.0 255.255.255.224
object network Voice_Net
 subnet 172.21.20.0 255.255.255.0
object network PBX_Internal
 host 192.168.2.2
 description PBX Internal
object network Voice_External
 host 195.11.180.43
 description For PBX
object network Raith_Remote_Network
 subnet 192.168.20.0 255.255.255.0
 description Raith Remote Network
object network NETWORK_OBJ_172.21.3.0_27
 subnet 172.21.3.0 255.255.255.224
object network NETWORK_OBJ_172.21.3.0_26
 subnet 172.21.3.0 255.255.255.192
object-group network azure-networks
 network-object 10.0.0.0 255.0.0.0
object-group network onprem-networks
 network-object 172.20.0.0 255.255.0.0
object-group protocol TCPUDP
 protocol-object udp
 protocol-object tcp
object-group service test_PPTP
 service-object ip
 service-object tcp destination eq pptp
access-list azure-vpn-acl extended permit ip object-group onprem-networks object-group azure-networks
access-list outside_access_in extended permit ip object-group azure-networks object-group onprem-networks
access-list outside_access_in extended permit icmp any any
access-list outside_access_in extended permit ip any any
access-list inside_access_in extended permit ip any any log disable
access-list inside_access_in_1 extended permit ip object-group onprem-networks object-group azure-networks
access-list inside_access_in_1 extended permit ip any object Voice_Net log debugging
access-list inside_access_in_1 extended permit ip any any
access-list outside_access_in_1 extended permit ip object-group azure-networks object-group onprem-networks
access-list outside_access_in_1 extended permit icmp any any
access-list outside_access_in_1 extended permit ip any any inactive
access-list Voice_access_in extended permit ip any any log debugging
access-list outside_cryptomap extended permit ip object-group onprem-networks object Raith_Remote_Network
pager lines 24
logging enable
logging buffer-size 40000
logging buffered notifications
logging asdm debugging
mtu outside 1500
mtu inside 1500
mtu outside1 1500
mtu Voice 1500
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-66114.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
nat (inside,outside1) source static onprem-networks onprem-networks destination static azure-networks azure-networks
nat (inside,outside1) source dynamic VLAN1 interface
nat (inside,Voice) source static VLAN1 VLAN1 destination static Voice_Net Voice_Net no-proxy-arp route-lookup
nat (Voice,outside1) source static PBX_Internal Voice_External
nat (inside,outside) source static onprem-networks onprem-networks destination static Raith_Remote_Network Raith_Remote_Network no-proxy-arp route-lookup
nat (inside,outside1) source static any any destination static NETWORK_OBJ_172.21.3.0_27 NETWORK_OBJ_172.21.3.0_27 no-proxy-arp route-lookup
nat (inside,outside1) source static any any destination static NETWORK_OBJ_172.21.3.0_26 NETWORK_OBJ_172.21.3.0_26 no-proxy-arp route-lookup
access-group outside_access_in in interface outside
access-group inside_access_in_1 in interface inside
access-group outside_access_in_1 in interface outside1
access-group Voice_access_in in interface Voice
route outside1 0.0.0.0 0.0.0.0 195.11.180.41 10
route inside 172.21.20.0 255.255.255.0 172.20.20.253 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 ssh console LOCAL
aaa authentication http console LOCAL
http server enable 444
http 192.168.1.0 255.255.255.0 management
http 172.20.0.0 255.255.0.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
sysopt connection tcpmss 1350
sysopt noproxyarp outside
crypto ipsec ikev1 transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-MD5 esp-aes-192 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-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec ikev1 transform-set azure-ipsec-proposal-set esp-aes-256 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-3DES-SHA mode transport
crypto ipsec ikev2 ipsec-proposal DES
 protocol esp encryption des
 protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal 3DES
 protocol esp encryption 3des
 protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal AES
 protocol esp encryption aes
 protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal AES192
 protocol esp encryption aes-192
 protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal AES256
 protocol esp encryption aes-256
 protocol esp integrity sha-1 md5
crypto ipsec security-association lifetime seconds 3600
crypto ipsec security-association lifetime kilobytes 102400000
crypto ipsec security-association pmtu-aging infinite
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set ikev1 transform-set ESP-3DES-SHA
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set security-association lifetime seconds 28800
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set security-association lifetime kilobytes 4608000
crypto map outside_map interface outside
crypto ca trustpoint ASDM_TrustPoint0
 enrollment terminal
 subject-name CN=ASA
 crl configure
crypto ca trustpool policy
crypto ikev2 policy 1
 encryption aes-256
 integrity sha
 group 5 2
 prf sha
 lifetime seconds 86400
crypto ikev2 policy 10
 encryption aes-256
 integrity sha
 group 5 2
 prf sha
 lifetime seconds 28800
crypto ikev2 policy 20
 encryption aes
 integrity sha
 group 5 2
 prf sha
 lifetime seconds 86400
crypto ikev2 policy 30
 encryption 3des
 integrity sha
 group 5 2
 prf sha
 lifetime seconds 86400
crypto ikev2 policy 40
 encryption des
 integrity sha
 group 5 2
 prf sha
 lifetime seconds 86400
crypto ikev2 enable outside
crypto ikev1 enable outside
crypto ikev1 enable outside1
crypto ikev1 policy 10
 authentication pre-share
 encryption aes-256
 hash sha
 group 2
 lifetime 28800
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 120
 authentication pre-share
 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 172.20.0.0 255.255.0.0 inside
telnet timeout 5
ssh 172.20.0.0 255.255.0.0 inside
ssh timeout 5
ssh version 2
console timeout 0
dhcpd address 172.20.2.1-172.20.2.254 inside
dhcpd dns 10.0.0.4 172.20.0.100 interface inside
dhcpd enable inside
dhcpd dns 172.21.20.254 interface Voice
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
tftp-server inside 172.20.2.34 /tftp
webvpn
 enable outside1
 anyconnect image disk0:/anyconnect-win-2.5.2014-k9.pkg 1
 anyconnect image disk0:/anyconnect-linux-2.5.2014-k9.pkg 2
 anyconnect image disk0:/anyconnect-macosx-i386-2.5.2014-k9.pkg 3
 anyconnect enable
 tunnel-group-list enable
 internal-password enable
group-policy DefaultRAGroup_2 internal
group-policy DefaultRAGroup_2 attributes
 dns-server value 10.0.0.4 172.20.0.100
 vpn-tunnel-protocol l2tp-ipsec
 default-domain value
group-policy DefaultRAGroup_3 internal
group-policy DefaultRAGroup_3 attributes
 dns-server value 10.0.0.4 172.20.0.100
 vpn-tunnel-protocol ikev1 l2tp-ipsec
 default-domain value
group-policy DefaultRAGroup internal
group-policy DefaultRAGroup attributes
 dns-server value 10.0.0.4 172.20.0.100
 vpn-tunnel-protocol l2tp-ipsec
 default-domain value
group-policy DefaultRAGroup_1 internal
group-policy DefaultRAGroup_1 attributes
 dns-server value 10.0.0.4 172.20.0.100
 vpn-tunnel-protocol l2tp-ipsec
 default-domain value
group-policy DfltGrpPolicy attributes
 vpn-tunnel-protocol ikev1 l2tp-ipsec ssl-client ssl-clientless
group-policy RA_VPN internal
group-policy RA_VPN attributes
 dns-server value 8.8.8.8 4.2.2.2
 vpn-tunnel-protocol ikev1
 default-domain value
group-policy "GroupPolicy_Anyconnect _profile" internal
group-policy "GroupPolicy_Anyconnect _profile" attributes
 wins-server none
 dns-server value 8.8.8.8
 vpn-tunnel-protocol ssl-client ssl-clientless
 default-domain none
 webvpn
  file-browsing enable
group-policy GroupPolicy_89.241.208.14 internal
group-policy GroupPolicy_89.241.208.14 attributes
 vpn-tunnel-protocol ikev1
username test2 password encrypted privilege 15
username test1 password  nt-encrypted privilege 0
username test1 attributes
 vpn-group-policy DefaultRAGroup_2
username test password  encrypted privilege 15
username test attributes
 vpn-group-policy DefaultRAGroup_1
username EdwardM password  encrypted privilege 15
username vpntest password  encrypted privilege 0
username vpntest attributes
 vpn-group-policy RA_VPN
username vpntest3 password  nt-encrypted privilege 15
username vpntest3 attributes
 service-type remote-access
username rhunton password  encrypted privilege 15
username rhunton attributes
 service-type admin
username e.melaugh password  encrypted privilege 15
username netx password  encrypted privilege 15
username netx attributes
 service-type remote-access
username colin password  encrypted privilege 15
username colin attributes
 service-type remote-access
tunnel-group DefaultL2LGroup ipsec-attributes
 ikev1 pre-shared-key *****
tunnel-group DefaultRAGroup general-attributes
 address-pool vpnclients
 default-group-policy DefaultRAGroup_3
tunnel-group DefaultRAGroup ipsec-attributes
 ikev1 pre-shared-key *****
 isakmp keepalive disable
tunnel-group DefaultRAGroup ppp-attributes
 no authentication chap
 authentication ms-chap-v2
tunnel-group "Anyconnect _profile" type remote-access
tunnel-group "Anyconnect _profile" general-attributes
 address-pool vpnclients
 default-group-policy "GroupPolicy_Anyconnect _profile"
tunnel-group "Anyconnect _profile" webvpn-attributes
 group-alias "Anyconnect _profile" enable
tunnel-group 137.117.215.177 type ipsec-l2l
tunnel-group 137.117.215.177 ipsec-attributes
 ikev1 pre-shared-key *****
 peer-id-validate nocheck
 isakmp keepalive disable
tunnel-group 89.241.208.14 type ipsec-l2l
tunnel-group 89.241.208.14 general-attributes
 default-group-policy GroupPolicy_89.241.208.14
tunnel-group 89.241.208.14 ipsec-attributes
 ikev1 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
  inspect pptp
policy-map type inspect ipsec-pass-thru Fairhurst
 description to allow vpn to fairhurst network
 parameters
  esp
  ah
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:f4185106b309478da7804dc22d2c1a85
: end

Answer 1

Hi,
You seem to have this nat (inside,outside1) source dynamic VLAN1 interface at line 2 which is causing the identity Nat/ Nat exempt to fail.
It is always good to use the packet tracer feature on the ASA to see what exactly is happening.
Try this
nat (inside,outside1) 1 source static VLAN1 VLAN1 destination static NETWORK_OBJ_172.21.3.0_27 NETWORK_OBJ_172.21.3.0_27 no-pr route-lo
Let me know how it goes for you.
Regards,
Nitish Emmanuel