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New Member

unable to access secondary subnet from VPN client

Please can someone help with the following; I have an ASA 5510 running v8.4(3)9 and have setup a remote user VPN using the Cisco VPN client v5.0.07.0410 which is working appart from the fact that I cannot access resources on a secondary subnet.

The setup is as follows:

ASA inside interface on 192.168.10.240

VPN clients on 192.168.254.x

I can access reources on the 192.168.10 subnet but not any other subnets internally, I need to specifically allow access to the 192.168.20 subnet, but I cannot figure out how to do this please advise, the config is below: -

Result of the command: "show startup-config"

!
ASA Version 8.4(3)9
!
hostname blank
domain-name

enable password encrypted
passwd encrypted
names
dns-guard
!
interface Ethernet0/0
nameif outside
security-level 0
ip address 255.255.255.224
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 192.168.10.240 255.255.255.0
!
interface Ethernet0/2
nameif DMZ
security-level 50
ip address 10.10.10.253 255.255.255.0
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
boot system disk0:/asa843-9-k8.bin
boot system disk0:/asa823-k8.bin
ftp mode passive
clock timezone GMT/BST 0
clock summer-time GMT/BDT recurring last Sun Mar 1:00 last Sun Oct 2:00
dns domain-lookup outside
dns domain-lookup inside
dns server-group DefaultDNS
name-server 194.168.4.123
name-server 194.168.8.123
domain-name nifcoeu.com
object network obj-192.168.0.0
subnet 192.168.0.0 255.255.255.0
object network obj-192.168.5.0
subnet 192.168.5.0 255.255.255.0
object network obj-192.168.10.0
subnet 192.168.10.0 255.255.255.0
object network obj-192.168.100.0
subnet 192.168.100.0 255.255.255.0
object network obj-192.168.254.0
subnet 192.168.254.0 255.255.255.0
object network obj-192.168.20.1
host 192.168.20.1
object network obj_any
subnet 0.0.0.0 0.0.0.0
object network obj_any-01
subnet 0.0.0.0 0.0.0.0
object network obj-0.0.0.0
host 0.0.0.0
object network obj_any-02
subnet 0.0.0.0 0.0.0.0
object network obj-10.10.10.1
host 10.10.10.1
object network obj_any-03
subnet 0.0.0.0 0.0.0.0
object network obj_any-04
subnet 0.0.0.0 0.0.0.0
object network obj_any-05
subnet 0.0.0.0 0.0.0.0
object network NS1000_EXT
host 80.4.146.133
object network NS1000_INT
host 192.168.20.1
object network SIP_REGISTRAR
host 83.245.6.81
object service SIP_INIT_TCP
service tcp destination eq sip
object service SIP_INIT_UDP
service udp destination eq sip
object network NS1000_DSP
host 192.168.20.2
object network SIP_VOICE_CHANNEL
host 83.245.6.82
object service DSP_UDP
service udp destination range 6000 40000
object service DSP_TCP
service tcp destination range 6000 40000
object network 20_range_subnet
subnet 192.168.20.0 255.255.255.0
description Voice subnet
object network 25_range_Subnet
subnet 192.168.25.0 255.255.255.0
description VLAN 25 client PC devices
object-group network ISP_NAT
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
object-group service SIP_INIT tcp-udp
port-object eq sip
object-group service DSP_TCP_UDP tcp-udp
port-object range 6000 40000
access-list inside_nat0_outbound extended permit ip 192.168.10.0 255.255.255.0 192.168.254.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip object 20_range_subnet 192.168.254.0 255.255.255.0
access-list Remote-VPN_splitTunnelAcl standard permit 192.168.10.0 255.255.255.0
access-list Remote-VPN_splitTunnelAcl standard permit 192.168.20.0 255.255.255.0
access-list 100 extended permit object-group TCPUDP object SIP_REGISTRAR object NS1000_INT object-group SIP_INIT
access-list 100 extended permit object-group TCPUDP object SIP_VOICE_CHANNEL object NS1000_DSP object-group DSP_TCP_UDP
access-list 100 extended permit ip 62.255.171.0 255.255.255.224 any
access-list 100 extended permit icmp any any echo-reply inactive
access-list 100 extended permit icmp any any time-exceeded inactive
access-list 100 extended permit icmp any any unreachable inactive
access-list 100 extended permit tcp any host 10.10.10.1 eq ftp
access-list 100 extended permit tcp any host 10.10.10.1 eq ftp-data
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu DMZ 1500
mtu management 1500
ip local pool VPN-Pool 192.168.254.1-192.168.254.254 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-647.bin
asdm history enable
arp timeout 14400
nat (inside,any) source static obj-192.168.0.0 obj-192.168.0.0 destination static obj-192.168.5.0 obj-192.168.5.0 no-proxy-arp route-lookup
nat (inside,any) source static obj-192.168.10.0 obj-192.168.10.0 destination static obj-192.168.100.0 obj-192.168.100.0 no-proxy-arp route-lookup
nat (inside,any) source static obj-192.168.10.0 obj-192.168.10.0 destination static obj-192.168.254.0 obj-192.168.254.0 no-proxy-arp route-lookup
nat (outside,inside) source static SIP_REGISTRAR SIP_REGISTRAR destination static interface NS1000_INT service SIP_INIT_TCP SIP_INIT_TCP
nat (outside,inside) source static SIP_REGISTRAR SIP_REGISTRAR destination static interface NS1000_INT service SIP_INIT_UDP SIP_INIT_UDP
!
object network obj_any
nat (inside,outside) dynamic interface
object network obj_any-01
nat (inside,outside) dynamic obj-0.0.0.0
object network obj_any-02
nat (inside,DMZ) dynamic obj-0.0.0.0
object network obj-10.10.10.1
nat (DMZ,outside) static 80.4.146.134
object network obj_any-03
nat (DMZ,outside) dynamic obj-0.0.0.0
object network obj_any-04
nat (management,outside) dynamic obj-0.0.0.0
object network obj_any-05
nat (management,DMZ) dynamic obj-0.0.0.0
access-group 100 in interface outside
route outside 0.0.0.0 0.0.0.0 80.4.146.129 1
route inside 192.168.20.0 255.255.255.0 192.168.10.254 1
route inside 192.168.25.0 255.255.255.0 192.168.10.254 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
http server enable
http 192.168.1.0 255.255.255.0 management
http 192.168.10.0 255.255.255.0 inside
http 192.168.25.0 255.255.255.0 inside
http 62.255.171.0 255.255.255.224 outside
http 192.168.254.0 255.255.255.0 outside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
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-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 dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set ikev1 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 ca trustpoint ASDM_TrustPoint0
enrollment self
subject-name CN=

crl configure
crypto ca trustpoint _SmartCallHome_ServerCA
crl configure
crypto ca certificate chain ASDM_TrustPoint0
certificate 2f0e024d
   

  quit
crypto ca certificate chain _SmartCallHome_ServerCA
certificate ca 6ecc7aa5a7032009b8cebcf4e952d491
   

  quit
crypto isakmp identity address
crypto ikev1 enable outside
crypto ikev1 policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet 192.168.1.0 255.255.255.0 management
telnet timeout 5
ssh 62.255.171.0 255.255.255.224 outside
ssh 192.168.254.0 255.255.255.0 outside
ssh 192.168.10.0 255.255.255.0 inside
ssh 192.168.25.0 255.255.255.0 inside
ssh timeout 5
ssh version 2
console timeout 0
vpn-sessiondb max-other-vpn-limit 250
vpn-sessiondb max-anyconnect-premium-or-essentials-limit 2
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
ntp server 192.168.10.6 source inside prefer
webvpn
group-policy Remote-VPN internal
group-policy Remote-VPN attributes
wins-server value 192.168.10.21 192.168.10.22
dns-server value 192.168.10.21 192.168.10.22
vpn-tunnel-protocol ikev1
split-tunnel-policy tunnelspecified
split-tunnel-network-list value Remote-VPN_splitTunnelAcl
default-domain value
username blank password blank encrypted privilege 0
username blank attributes
vpn-group-policy Remote-VPN
username blank password encrypted privilege 0
username blank attributes
  vpn-group-policy Remote-VPN
tunnel-group Remote-VPN type remote-access
tunnel-group Remote-VPN general-attributes
address-pool VPN-Pool
default-group-policy Remote-VPN
tunnel-group Remote-VPN 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 netbios
  inspect tftp
  inspect ip-options
  inspect sip 
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
call-home
contact-email-addr

profile CiscoTAC-1
  destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
  destination address email callhome@cisco.com
  destination transport-method http
  subscribe-to-alert-group diagnostic
  subscribe-to-alert-group environment
  subscribe-to-alert-group inventory periodic monthly
  subscribe-to-alert-group configuration periodic monthly
  subscribe-to-alert-group telemetry periodic daily
Cryptochecksum:b8263c5aa7a6a4d9cb08368c042ea236

  • VPN
1 ACCEPTED SOLUTION

Accepted Solutions

unable to access secondary subnet from VPN client

Hi Simon,

Please try this and let me know.

nat (inside,any) source static 20_range_subnet 20_range_subnet destination static obj-192.168.254.0 obj-192.168.254.0

Let me know, if this helps.

thanks

Rizwan Rafeek

3 REPLIES

unable to access secondary subnet from VPN client

Hi Simon,

Please try this and let me know.

nat (inside,any) source static 20_range_subnet 20_range_subnet destination static obj-192.168.254.0 obj-192.168.254.0

Let me know, if this helps.

thanks

Rizwan Rafeek

New Member

unable to access secondary subnet from VPN client

Hi Rizwan,

That worked, thanks so much, can you give me an explaination as to what the line is doing that you specified please???

Cheers

unable to access secondary subnet from VPN client

Your config was missing a no-nat between your "192.168.20.0" and "obj-192.168.254.0"

So, if you look at your config there is a no-nat for inside subnet "obj-192.168.10.0" as shown below.

nat (inside,any) source static obj-192.168.10.0 obj-192.168.10.0 destination static obj-192.168.254.0 obj-192.168.254.0

So all you have to do is create a no-nat for your second subnet, like I showed you before, the solution was already there on your config but I guess you over looked at it.

I hope that helps.

Thanks

Rizwan Rafeek

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