can't ping dmz zone ip through checkpoint firewall

Posted on 2001-09-18
Last Modified: 2013-11-16
we have a  checkpoint firewall 4.0 running in nt 4.0 ,

and we divid three zone in firewall so dmz , internal ,

and internet external zone . From internet , people can

ping the real ip and access the web server which in dmz ,

but in internal zone , we can't . we have check our

internal zone 's ip have all permission to access anywhere

through the firewall .HOw can we ping and access the real

ip which is in dmz zone .

Question by:adragon218
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
LVL 55

Expert Comment

ID: 6490103
Are you trying to ping the servers in the DMZ by name or by IP address? If it works OK by address then probably you will have to put hosts files on all the local PCs or have an internal DNS server.

Expert Comment

ID: 6490226
Can you give us a detailed IP map?

You say that you can't ping, but can you do anything else? Could it be that you need routes set up on the firewall?

Expert Comment

ID: 6490266
you should list a map here of how things are layed out and also post the rule base.  That would make it very easy.  Without them everyone will just be making guesses.
Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.


Expert Comment

ID: 6490929
Check your rules, and make sure that ICMP packets are passed from the DMZ BACK to your internal network.
LVL 17

Accepted Solution

mikecr earned 30 total points
ID: 6492145
You should have a rule on your filewall with the source being your network and the destination being either the box in the DMZ that your trying to reach or that whole address range of whatever is in the DMZ. Review your rules carefully and make sure your cleanup rule is not dropping everything.

Expert Comment

ID: 6872502
ADMINISTRATION WILL BE CONTACTING YOU SHORTLY.  Moderators Computer101 or Netminder will return to finalize these if still open in seven days.  Please post closing recommendations before that time.

Question(s) below appears to have been abandoned. Your options are:
1. Accept a Comment As Answer (use the button next to the Expert's name).
2. Close the question if the information was not useful to you. You must tell the participants why you wish to do this, and allow for Expert response.
3. Ask Community Support to help split points between participating experts, or just comment here with details and we'll respond with the process.
4. Delete the question. Again, please comment to advise the other participants why you wish to do this.

For special handling needs, please post a zero point question in the link below and include the question QID/link(s) that it regards.
Please click the Help Desk link on the left for Member Guidelines, Member Agreement and the Question/Answer process.

Please click you Member Profile to view your question history and keep them all current with updates as the collaboration effort continues, to track all your open and locked questions at this site.  If you are an EE Pro user, use the Power Search option to find them.

To view your open questions, please click the following link(s) and keep them all current with updates.

To view your locked questions, please click the following link(s) and evaluate the proposed answer.

------------>  EXPERTS:  Please leave any comments regarding your closing recommendations if this item remains inactive another seven (7) days.  Also, if you are interested in the cleanup effort, please click this link
Thank you everyone.
Moderator @ Experts Exchange

P.S.  For any year 2000 questions, special attention is needed to ensure the first correct response is awarded, since they are not in the comment date order, but rather in Member ID order.

Expert Comment

ID: 6967589
Admin notified of User neglect. Force-accepted by
CS Moderator

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

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

Meet the world's only “Transparent Cloud™” from Superb Internet Corporation. Now, you can experience firsthand a cloud platform that consistently outperforms Amazon Web Services (AWS), IBM’s Softlayer, and Microsoft’s Azure when it comes to CPU and …
When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor ( If you're looking for how to monitor bandwidth using netflow or packet s…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …

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