Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Need help opening ports over Cisco site-to-site VPN

Posted on 2013-01-10
7
Medium Priority
?
564 Views
Last Modified: 2013-01-10
I've got a site-to-site VPN running on a pair of Cisco 5510 firewalls.  One end is with me at my primary site and the other several miles away at a datacenter.  I'd like to find out which ports are open across the VPN and which are not prior to attempting some installs at the datacenter.  Is there an easy way to tell using the ASDM interface?  I would also need to know how to open specific ports if I find that they are closed.  Thanks in advance for any help!
0
Comment
Question by:First Last
  • 3
  • 3
7 Comments
 
LVL 22

Expert Comment

by:mcsween
ID: 38763776
Log into the CLI on your firewall and post the result from the show run command issued from enable mode.  Remember to remove any sensitive information before posting.
0
 
LVL 18

Expert Comment

by:fgasimzade
ID: 38763846
Ports open depend on the access-lists with interesting traffic configured. Usually all tcp/ip ports are open from local subnet to remote subnet
0
 
LVL 1

Author Comment

by:First Last
ID: 38764327
Ok, that took some serious time to clean out the sensitive info but here we go, its attached here.  Thank you for helping me out!
ASA.txt
0
Become an IT Security Management Expert

In today’s fast-paced, digitally transformed world of business, the need to protect network data and ensure cloud privacy has never been greater. With a B.S. in Network Operations and Security, you can get the credentials it takes to become an IT security management expert.

 
LVL 18

Accepted Solution

by:
fgasimzade earned 2000 total points
ID: 38764368
Do  sh run all, see if you have sysopt connectipn permit-vpn enabled. if yes then all ports are open for ipsec traffic. if no then take a look at your fios access in access lists, everything that is permitted there is permittedfor vpn
0
 
LVL 1

Author Comment

by:First Last
ID: 38764403
Ok, I ran that and did find this entry:  sysopt connection permit-vpn

So I'm assuming that all the ports are open for ipsec.  Last question to bug you with...the install is for another Exchange 2010 server for redundancy.  Do you happen to know if exchange would use any ports or protocols that could be blocked even though I'm seeing that line in the config?  I ask because at one point I had some major problems with the two server communicating and wound up having to shut down the instance at the datacenter.
0
 
LVL 18

Assisted Solution

by:fgasimzade
fgasimzade earned 2000 total points
ID: 38764433
I remember I had problems with inspect smtp, make sure you disable it with no inspect smtp under global policy (in the end of the config)
0
 
LVL 1

Author Comment

by:First Last
ID: 38764441
Thanks fgasimzade, I will give that a shot now.
0

Featured Post

Restore individual SQL databases with ease

Veeam Explorer for Microsoft SQL Server delivers an easy-to-use, wizard-driven interface for restoring your databases from a backup. No expert SQL background required. Web interface provides a complete view of all available SQL databases to simplify the recovery of lost database

Question has a verified solution.

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

In this article, the configuration steps in Zabbix to monitor devices via SNMP will be discussed with some real examples on Cisco Router/Switch, Catalyst Switch, NAS Synology device.
As a matter of fact, Outlook OST files are of much importance in relation to Exchange mailbox. OST files are independent as they are simply copy of data of a user’s mailbox on Exchange Server. Though, if the server’s status is changed or it is dama…
This Experts Exchange video Micro Tutorial shows how to tell Microsoft Office that a word is NOT spelled correctly. Microsoft Office has a built-in, main dictionary that is shared by Office apps, including Excel, Outlook, PowerPoint, and Word. When …
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…
Suggested Courses

578 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