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08.15.2007 at 07:46AM PDT, ID: 22764274
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8.0

Port 3389 forwarding in ASA 5505 router

Asked by citnetworks in Cisco PIX Firewall, Networking Hardware Firewalls

Tags: , , ,

I am trying to forward the terminal services port from outside the network to a particular machine inside. It appears I have missed something in my configuration. It appears that it is making the connection but then it times out and I get a SYN timeout entry in the log. If anyone could help out I would appreciate it. Here is the config in the router right now. I am attaching the two log entries I am getting at the end.

ciscoasa# sh run
: Saved
:
ASA Version 7.2(2)
!
hostname ciscoasa
domain-name default.domain.invalid
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 10.0.0.1 255.255.255.0
 ospf cost 10
!
interface Vlan2
 nameif outside
 security-level 0
 ip address x.x.x.145 255.255.255.0
 ospf cost 10
!
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 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
dns domain-lookup inside
dns server-group DefaultDNS
 domain-name default.domain.invalid
access-list outside_20_cryptomap extended permit ip 10.0.0.0 255.255.255.0 10.0.1.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.0.0.0 255.255.255.0 10.0.1.0 255.255.255.0
access-list inbound extended permit tcp any interface outside eq 3389
access-list mss_acl extended permit tcp any 10.0.1.0 255.255.255.0
!
tcp-map mss-tcp-map
  exceed-mss allow
!
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
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
static (inside,outside) tcp interface 3389 10.0.0.201 3389 netmask 255.255.255.255
access-group inbound in interface outside
route outside 0.0.0.0 0.0.0.0 x.x.x.150 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
group-policy DfltGrpPolicy attributes
 banner none
 wins-server none
 dns-server none
 dhcp-network-scope none
 vpn-access-hours none
 vpn-simultaneous-logins 3
 vpn-idle-timeout none
 vpn-session-timeout none
 vpn-filter none
 vpn-tunnel-protocol IPSec l2tp-ipsec
 password-storage disable
 ip-comp disable
 re-xauth disable
 group-lock none
 pfs enable
 ipsec-udp disable
 ipsec-udp-port 10000
 split-tunnel-policy tunnelall
 split-tunnel-network-list none
 default-domain none
 split-dns none
 intercept-dhcp 255.255.255.255 disable
 secure-unit-authentication disable
 user-authentication disable
 user-authentication-idle-timeout none
 ip-phone-bypass disable
 leap-bypass disable
 nem disable
 backup-servers keep-client-config
 msie-proxy server none
 msie-proxy method no-modify
 msie-proxy except-list none
 msie-proxy local-bypass disable
 nac disable
 nac-sq-period 300
 nac-reval-period 36000
 nac-default-acl none
 address-pools none
 client-firewall none
 client-access-rule none
 webvpn
  functions url-entry
  html-content-filter none
  homepage none
  keep-alive-ignore 4
  http-comp gzip
  filter none
  url-list none
  customization value DfltCustomization
  port-forward none
  port-forward-name value Application Access
  sso-server none
  deny-message value Login was successful, but because certain criteria have not been met or due to some specific group policy, you do not have permission to use any of the VPN features. Contact your IT administrator for more information
  svc none
  svc keep-installer installed
  svc keepalive none
  svc rekey time none
  svc rekey method none
  svc dpd-interval client none
  svc dpd-interval gateway none
  svc compression deflate
http server enable
http 10.0.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 20 match address outside_20_cryptomap
crypto map outside_map 20 set pfs
crypto map outside_map 20 set peer Y.Y.Y.54
crypto map outside_map 20 set transform-set ESP-3DES-SHA
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
tunnel-group Y.Y.Y.54 type ipsec-l2l
tunnel-group Y.Y.Y.54 ipsec-attributes
 pre-shared-key *
 isakmp keepalive threshold infinite
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
!
class-map inspection_default
 match default-inspection-traffic
class-map mss-class-map
 match access-list mss_acl
!
!
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
 class mss-class-map
  set connection advanced-options mss-tcp-map
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:f490bd3bb972fd7c0327a7747edf8980
: end
ciscoasa#


LOG:

6      Aug 15 2007      07:06:41      302013      Y.Y.Y.54      10.0.0.201       Built inbound TCP connection 743 for outside:Y.Y.Y.54/1859 (Y.Y.Y.54/1859) to inside:10.0.0.201/3389 (X.X.X.145/3389)

6      Aug 15 2007      07:07:11      302014      Y.Y.Y.54      10.0.0.201       Teardown TCP connection 743 for outside:Y.Y.Y.54/1859 to inside:10.0.0.201/3389 duration 0:00:30 bytes 0 SYN Timeout


Sean
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[+][-]08.15.2007 at 07:51AM PDT, ID: 19700126

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About this solution

Zones: Cisco PIX Firewall, Networking Hardware Firewalls
Tags: asa, 5505, port, 3389
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Solution Provided By: bdeterding
Participating Experts: 1
Solution Grade: A
 
 
[+][-]08.15.2007 at 09:17AM PDT, ID: 19701054

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