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8.2

Configure firewall to allow outbound IPSec over TCP

Asked by spillsbury in Cisco PIX Firewall, Virtual Private Networking (VPN), IPSec Security Protocol

Tags: Cisco ASA 5505, firewall, VPN

How do I configure my Cisco ASA5505 to allow 'outbound' vpn connections using "IPSec over TCP / port 10000"?

Users on my internal network are able to use the Cisco VPN client (v5.0.02) and connect through the ASA to remote networks via IPSec over UDP, but they are unable to connect to networks that require "IPSec over TCP" using TCP port 10000.

Is there a simple configuration setting that I'm missing?

Thanks.
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Result of the command: "show running-config"
 
: Saved
:
ASA Version 8.0(3)2 
!
hostname ciscoasa
domain-name the.farm
enable password <snip> encrypted
names
name 192.168.0.223 Aragorn
name 192.168.0.115 zVision_Server description Demo server
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.0.1 255.255.255.0 
!
interface Vlan2
 nameif outside
 security-level 0
 pppoe client vpdn group companyname
 ip address 216.161.253.105 255.255.255.255 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
!
passwd <snip> encrypted
boot system disk0:/asa803-2-k8.bin
ftp mode passive
dns server-group DefaultDNS
 domain-name the.farm
object-group service DM_INLINE_TCP_3 tcp
 port-object eq ftp
 port-object eq ftp-data
 port-object eq ssh
object-group protocol TCPUDP
 protocol-object udp
 protocol-object tcp
object-group service DM_INLINE_TCP_1 tcp
 port-object eq ftp
 port-object eq ftp-data
access-list companyname_ipsec_splitTunnelAcl standard permit 192.168.0.0 255.255.255.0 
access-list inside_nat0_outbound extended permit ip any 192.168.0.224 255.255.255.224 
access-list inside_nat0_outbound extended permit ip 192.168.0.0 255.255.255.0 192.168.0.224 255.255.255.224 
access-list inside_nat0_outbound extended permit tcp host Aragorn any object-group DM_INLINE_TCP_3 
access-list outside_access_in extended permit tcp any 192.168.0.0 255.255.255.0 eq ssh inactive 
access-list outside_access_in extended permit ip any host Aragorn inactive 
access-list outside_access_in extended permit object-group TCPUDP any any eq www 
access-list outside_access_in extended permit tcp any any object-group DM_INLINE_TCP_1 
access-list companyname-ipsec_splitTunnelAcl standard permit any 
access-list companyname_ipsec_splitTunnelAcl_1 standard permit 192.168.0.0 255.255.255.0 
access-list companyname-ipsec-2_splitTunnelAcl standard permit 192.168.0.0 255.255.255.0 
access-list inside_nat0_outbound_1 extended permit ip 192.168.0.0 255.255.255.0 192.168.0.224 255.255.255.224 
access-list inside_access_in remark Open for zvision demo website
access-list inside_access_in extended permit object-group TCPUDP host zVision_Server host 216.161.253.105 eq www inactive 
access-list inside_access_in extended permit ip any any 
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool vpnpool 192.168.0.225-192.168.0.250 mask 255.255.255.0
no failover
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
asdm image disk0:/asdm-603.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound_1
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) tcp interface www zVision_Server www netmask 255.255.255.255 
static (inside,outside) tcp interface ftp zVision_Server ftp netmask 255.255.255.255 
access-group inside_access_in in interface inside
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 63.231.10.199 1
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 uauth 0:05:00 absolute
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 192.168.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-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 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac 
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs 
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 companyname request dialout pppoe
vpdn group companyname localname <snip> 
vpdn group companyname ppp authentication pap
vpdn username cmimaging@qwest.net password ********* store-local
dhcpd auto_config outside
!
dhcpd address 192.168.0.2-192.168.0.254 inside
!
 
no threat-detection basic-threat
threat-detection statistics
group-policy companyname_ipsec internal
group-policy companyname_ipsec attributes
 dns-server value 192.168.0.1 4.2.2.2
 vpn-tunnel-protocol IPSec 
 split-tunnel-policy tunnelspecified
 split-tunnel-network-list value companyname_ipsec_splitTunnelAcl_1
username dderegt password <snip> encrypted
username dderegt attributes
 vpn-group-policy companyname_ipsec
tunnel-group companyname_ipsec type remote-access
tunnel-group companyname_ipsec general-attributes
 address-pool vpnpool
 default-group-policy companyname_ipsec
tunnel-group companyname_ipsec 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 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 
!
service-policy global_policy global
prompt hostname context 
Cryptochecksum:84f3cfb7c0fdc57b6a11c2f880f6d7d8
: end
[+][-]05/06/09 12:08 PM, ID: 24318408Accepted Solution

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About this solution

Zones: Cisco PIX Firewall, Virtual Private Networking (VPN), IPSec Security Protocol
Tags: Cisco ASA 5505, firewall, VPN
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Solution Provided By: spillsbury
Participating Experts: 1
Solution Grade: A
 
[+][-]03/06/09 03:40 PM, ID: 23822242Expert Comment

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[+][-]03/06/09 03:45 PM, ID: 23822272Author Comment

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[+][-]03/06/09 04:39 PM, ID: 23822522Expert Comment

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[+][-]03/10/09 09:04 AM, ID: 23848238Author Comment

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