Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

hx2
New Member

New to PIX, I Need Help

I have 2 problems, the first is, I need to set up a ACL that will enable only certain IP addresses access to my internal W2K Terminal Server. My second issue is my PIX seems to just stop working.... meaning, I don't change anything, just all of a sudden, I can't get to the internet... I can't ping my internet router. But when I reload my configuration, everything starts to work again... I am not exactly sure how to trouble shoot this problem. CAN ANYONE HELP ME?

2 ACCEPTED SOLUTIONS

Accepted Solutions
Gold

Re: New to PIX, I Need Help

to access an internal server with terminal session,

if you've got only one public ip,

static (inside,outside) tcp 3389 3389 netmask 255.255.255.255 0 0

if you've got more than one public ip,

static (inside,outside) netmask 255.255.255.255 0 0

regardless which static command you use, you still need to apply the following:

access-list 100 permit tcp eq 3389; or

access-list 100 permit tcp eq 3389

access-group 100 in interface outside

clear xlate

may i suggest that allowing terminal session directly from internet is not very secured. you may configure remote vpn client access or alternatively, manipulate the standard port number so that hacker will not discover the port as easy.

e.g.

static (inside,outside) tcp 10000 3389 netmask 255.255.255.255 0 0

access-list 100 permit tcp eq 10000

access-group 100 in interface outside

with the commands above, the trusted remote user needs to point to tcp port 10000 instead of default port 3389 when connecting to the server.

to establish a terminal session with a specific port:

:10000

regarding the connectivity issue, are you using pix501? if so, do a "sh ver" to verify the internal user licence. you may have a 10 or 50 internal user licence.

Gold

Re: New to PIX, I Need Help

just wondering if the internet issue still bothering you.

6 REPLIES
Gold

Re: New to PIX, I Need Help

to access an internal server with terminal session,

if you've got only one public ip,

static (inside,outside) tcp 3389 3389 netmask 255.255.255.255 0 0

if you've got more than one public ip,

static (inside,outside) netmask 255.255.255.255 0 0

regardless which static command you use, you still need to apply the following:

access-list 100 permit tcp eq 3389; or

access-list 100 permit tcp eq 3389

access-group 100 in interface outside

clear xlate

may i suggest that allowing terminal session directly from internet is not very secured. you may configure remote vpn client access or alternatively, manipulate the standard port number so that hacker will not discover the port as easy.

e.g.

static (inside,outside) tcp 10000 3389 netmask 255.255.255.255 0 0

access-list 100 permit tcp eq 10000

access-group 100 in interface outside

with the commands above, the trusted remote user needs to point to tcp port 10000 instead of default port 3389 when connecting to the server.

to establish a terminal session with a specific port:

:10000

regarding the connectivity issue, are you using pix501? if so, do a "sh ver" to verify the internal user licence. you may have a 10 or 50 internal user licence.

hx2
New Member

Re: New to PIX, I Need Help

I am using a PIX515E... I was wondering if it has anything to do with the timeout settings.

My settings are...

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

Would it help you help me if I posted my entire configuration?

Thanks

Gold

Re: New to PIX, I Need Help

these settings are default and it shouldn't cause any issue, as i have never manipulate the settings.

hx2
New Member

Re: New to PIX, I Need Help

ok, I will not change any of these settings. Yet, it seems like when there is no activity my connection to the internet goes down. For example, over night my connection to the internet goes down, but like now when I am at the office and all of my users are doing things on the internet, the connection stays up. What would you suggest for troubleshooting? Oh, yeah, by the way, the RDP ACL works fine... thanks a million

Gold

Re: New to PIX, I Need Help

it's good to learn that the rdp is working fine.

according to cisco:

Why should I rate posts?

If you see a post that you think deserves recognition, please take a moment to rate it.

You'll be helping yourself and others to quickly identify useful content -- as determined by members. And you'll be ensuring that people who generously share their expertise are properly acknowledged. As posts are rated, the value of those ratings are accumulated as "points" and summarized on the Member Profile page and on each member's Preferences page.

Gold

Re: New to PIX, I Need Help

just wondering if the internet issue still bothering you.

112
Views
0
Helpful
6
Replies
CreatePlease login to create content