Solved

FTP server behind Cisco ASA 5505 NAT public address

Posted on 2008-10-02
5
1,138 Views
Last Modified: 2011-09-20
Hi,
I would like to use a public address for an  FTP server on my LAN. I've added what I thought were the right commands to do this but it is still not working. Here's my config:

Result of the command: "show running-config"

: Saved
:
ASA Version 7.2(4)
!
hostname RI5505
domain-name seaboardbox.com
enable password Dr0KI7S5C7dIwyPV encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.1.50 255.255.0.0
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 69.26.xxx.179 255.255.255.248
!
interface Vlan3
 shutdown
 no forward interface Vlan1
 nameif dmz
 security-level 50
 no ip address
!
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
!
ftp mode passive
dns server-group DefaultDNS
 domain-name domain.com
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
access-list access_outside_in extended permit tcp any host 69.26.xxx.180 eq ftp
access-list outside_access_in extended permit tcp any any eq ftp
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
mtu dmz 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-524.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) tcp 69.26.xxx.180 ftp 192.168.1.80 ftp netmask 255.255.255.255
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 69.26.xxx.177 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 sip-provisional-media 0:02:00 uauth 0:05:00 absolute
http server enable
http 192.168.1.0 255.255.255.0 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
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto isakmp identity address
crypto isakmp enable outside
crypto isakmp policy 10
 authentication pre-share
 encryption 3des
 hash sha
 group 2
 lifetime 86400
crypto isakmp nat-traversal  20
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!

!
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:afb962d4d65c569ac417f9367e4e1728
: end

Thanks
0
Comment
Question by:VNI-Joe
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 26

Expert Comment

by:Soulja
ID: 22626910
I think your nat statement is backwards:

static (real_interface,mapped_interface) mapped_ip real_ip netmask mask

Try

static (outside,inside) tcp 192.168.1.80 ftp 69.26.xxx.180 ftp netmask 255.255.255.255

0
 

Author Comment

by:VNI-Joe
ID: 22627341
What would my access list command be?
0
 
LVL 26

Expert Comment

by:Soulja
ID: 22627399
Your access list command looks fine.
0
 

Author Comment

by:VNI-Joe
ID: 22627489
Which one because it looks like I have two different commands for the same thing. And I still can't connect to the FTP server at the 69.26.xxx.180 address.

access-list access_outside_in extended permit tcp any host 69.26.xxx.180 eq ftp
access-list outside_access_in extended permit tcp any any eq ftp
0
 
LVL 26

Accepted Solution

by:
Soulja earned 250 total points
ID: 22627578
Both are correct on is just more restrictive.

Add

static (outside,inside) tcp 192.168.1.80 ftp-data 69.26.xxx.180 ftp-data netmask 255.255.255.255


access-list access_outside_in extended permit tcp any host 69.26.xxx.180 eq ftp -data

See if that works.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
This past year has been one of great growth and performance for OnPage. We have added many features and integrations to the product, making 2016 an awesome year. We see these steps forward as the basis for future growth.
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
Both in life and business – not all partnerships are created equal. Spend 30 short minutes with us to learn:   • Key questions to ask when considering a partnership to accelerate your business into the cloud • Pitfalls and mistakes other partners…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question