Nmap. Nmap stands for "Network Mapper", it is the most popular network discovery and port …
IPSec may also need ESP (Encapsulated security Protocol, IP protocol 50), and AH (Authentication Header, IP protocol 51) SSTP (Secure Socket Tunneling Protocol) VPN, a.k.a. SSL VPN - uses private key to encrypt data over a SSL connection port 443 TCP Note: may also use ports 465 (Secure SMTP), 993 (Secure IMAP), and 995 (Secure POP) OpenVPN Similarly, IPSec-based VPN that provides a higher level of security utilizes several ports for security, such as IP port numbers 50 and 51 for Encapsulated Security Protocol (ESP) and Authentication Header (AH), respectively. It also utilizes UDP port 500 and 4500 for phase 1 and 2 negotiations. If you mean strictly VPN then these ports should be opened: TCP/47 GRE, TCP/1723 for PPTP, TCP/1701 for L2TP and TCP-UDP/500 for ISAKMP, CISCO etc (only in case of People that know about vpn, is this serious concern the port scan, also any other vpns to consider. mike70sk, Jun 21, 2013 #3. mirimir Registered Member. Joined: Pscan is a utility that can: scan a list of ports, a range of ports of a combination of both, it will do a simple tcp-connect and shows if the port is open or closed. The TCP and UDP ports used by eMule are displayed. Note down the port information, and then close eMule. Open the ports in Personal Firewall. Open your McAfee security software. Click Web and Email Protection, then click Firewall. Click Ports and System Services, then click Add. Type in eMule (or the application that you are using) in the In this article i will explain how to stay anonymous during port scanning with Nmap (utility for network discovery and security auditing). I’ll show how to perform an anonymous port scanning through the Tor network, using ProxyChains utility. I’ll also show how to get round a situation where scan fails, because Tor endpoints are blocked. […]
TCP Port Scanner. As the name indicates – it is capable of scanning only TCP ports. TCP Port …
3. Make sure that the ports are opened on the WinGate firewall. When you create a VPN host in WinGate you are asked if you want it to open the firewall ports. If these ports are not opened, or are subsequently closed WinGate VPN will not accept incoming connections. You can open these ports by going to Extended Networking-->Port Security 4. As for the port scan, check to see if you have any malware, trojans, worms etc.. w/e make sure you do not have routing services running as well as ICS. Also elaborate on the port scan, was this scan done on an internal ip address 10.x.x.x by a 192.168.1.x ? To scan individually, select 'individual', input a valid port number, and select 'Scan'. The tool will display the status of the chosen port below the scan button. To scan by package type, select 'package' and choose a package from the drop down menu. Ports contained in the package will then be displayed below the drop down.
In order to fix a "no open ports" scan result, you should rescan with Nmap's option Don't ping host (-Pn) enabled or OpenVAS "Check if host is alive before scanning" option disabled.
VPN Port Scan - October 2016 - Forums - CNET Oct 04, 2016