configuring Cisco PIX 506 for RDC

Posted on 2004-08-13
Last Modified: 2010-03-18
We recently purchased and installed a cisco 506e pix firewall, but I am having problems configuring the firewall to allow RDC for windows xp users who want to work from home. I have setup rules so many times now I am utterly confused! :)~ moo? If someone could point me to a source that can walk me throu setting this bad boy up I would sure appreciate it!
Question by:digitalslavery
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LVL 15

Expert Comment

ID: 11800113
First, open up port 3389

Author Comment

ID: 11800403
right, I think I ve done that! On the configuration menu I set up an access rule for the computer on my network I want access to.

The rule is setup to allow any outside connection with a mask of port 3389 to inside ip address mask of port = any.

I also added the Translation Rule for inside to one of the ip addresses our ISP provides.(we have a block of addresses).

Nothing is configured under the VPN tab.

Hosts/Networks tab has the compuers ip address that I want to connect to configured with the Basic Info tab setup for the computer on the network that I want to connect to.
IP Address :
Mask         :
Interface    : inside

The Routing Tab is setup as >
Define Static Route  : checked
Gateway IP Address :
Metric                     : 1

The NAT tab is setup as >
Outside     : Static
IP Address :

But still not working.
LVL 79

Assisted Solution

lrmoore earned 250 total points
ID: 11802934
Can you post your complete config?
File, Show running config in new window. Cut/Paste then edit out your password hashes and any other private info..
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Author Comment

ID: 11803138
this config may have some strange entries since i have been trying to setup access for RDC:

PIX Version 6.3(1)
interface ethernet0 auto
interface ethernet1 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password **************** encrypted
passwd *************** encrypted
hostname LGMortgagePix
clock timezone MST -7
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
name Mail
name Web
name DaveValdez
name SanSalvidor
name Corporate
name RDC_jason
name jason
name ExcServer
access-list outside_access_in permit icmp any any
access-list outside_access_in permit tcp any host ExcServer eq smtp
access-list outside_access_in permit tcp any host eq www
access-list outside_access_in remark Remote Desktop Connection for Jason Lasby
access-list outside_access_in permit tcp any eq 3389 host jason
access-list inside_outbound_nat0_acl permit ip any
access-list inside_outbound_nat0_acl permit ip host RDC_jason
pager lines 24
logging on
logging console alerts
logging monitor alerts
logging buffered alerts
logging trap informational
logging device-id hostname
mtu outside 1500
mtu inside 1500
ip address outside
ip address inside
ip verify reverse-path interface outside
ip verify reverse-path interface inside
ip audit info action alarm drop
ip audit attack action alarm drop
ip local pool CorporateRDC
pdm location inside
pdm location Mail inside
pdm location Web inside
pdm location outside
pdm location SanSalvidor inside
pdm location inside
pdm location outside
pdm location ExcServer outside
pdm location DaveValdez outside
pdm location outside
pdm location outside
pdm location RDC_jason inside
pdm location jason outside
pdm location outside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 10
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 10 0 0
static (inside,outside) ExcServer Mail netmask 0 0
static (inside,outside) Web netmask 0 0
static (inside,outside) jason RDC_jason netmask 0 0
access-group outside_access_in in interface outside
route outside 1
route outside 1
route inside Mail 1
route inside RDC_jason 1
route inside Web 1
route inside SanSalvidor 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
http server enable
http outside
http ExcServer outside
http DaveValdez outside
http Corporate inside
http SanSalvidor inside
http inside
snmp-server location Corporate
snmp-server contact Jason Lasby
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-pptp
telnet timeout 5
ssh timeout 5
console timeout 20
vpdn group 1 ppp authentication pap
vpdn group 1 ppp authentication chap
vpdn group 1 ppp authentication mschap
vpdn group 1 ppp encryption mppe 40
vpdn username dvaldez password *********
vpdn username jlasby password *********
vpdn enable outside
terminal width 80
: end
LVL 79

Expert Comment

ID: 11803146
>access-list outside_access_in permit tcp any eq 3389 host jason
Change that to:
access-list outside_access_in permit tcp any host jason eq 3389
LVL 104

Accepted Solution

Sembee earned 250 total points
ID: 11809690
If you only have one IP address then only one machine can be configured to use port 3389. Never mind the security risks of having 3389 exposed to the Internet.
If you want more than one user to have access to Remote Desktop at any one time then your best option would be to use a VPN. The users would connect on the VPN, then connect to their own machine using its internal IP address. Secure and allows mutiple users to connect.


Author Comment

ID: 11812361
We have about 5-8 users who need to have access. and since we have a block of address I usually setup the users with one of the address from the block so they can connect directly to their desktops from home or where ever. When I tried to setup a VPN all these options that I have never dealt with before were being presented and so I bypassed trying to figure it out for right now. So I am spending the day reading the docs on ciscos site before posting any more quesitons.

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