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- DNS over PPTP
- I recently updated the PIX Firewall version on two PIX515E's from 6.3(2) to 6.3(5). After the upgrade, a limited number of PPTP clients were no longer able to resolve internal DNS. On these hosts, all DNS queries while connected to the VPN use external DNS; despite IPCONFIG /ALL indicating otherwise....
- Tags: VPNs, Domain names, Network security, NETWORKING, Network technology, mjfera@..., PPTP-VPDN-GROUP ppp authentication, PPTP, DNS, PPTP client, IP
- Discussion threads 2007-08-03
- Cisco 506e PPTP Problem
- Hello everyone. I successfully configured a Cisco 506e to allow me access to the internet as well as VPN clients to logon and use the tunnel to touch local clients.The problem, however, is that the client that opens the tunnel CANNOT surf the internet or do anything in his...
- Tags: VPNs, NETWORKING, Network security, Network technology, TELECOMMUNICATIONS, Cisco Systems Inc., leo.negron@..., PPTP, IP, VPN, ip audit, PPTP-VPDN-GROUP ppp authentication, VPN 255.255.255.0, audit
- Discussion threads 2007-07-09
Additional Resources
- PIX PPTP VPN
- HiI have configured pptp on a PIX 506E ver 6.2(2)The PPTP terminates ok on the PIX but vpn clients can't access any resources on the LAN no icmp ping reply either. I have remove use default-gateway on remote from PPTP client and still doesn't workAny ideas?Here is the config.Building configuration...:...
- Tags: TCP/IP, NETWORKING, VPNs, Network security, Network technology, roppong@..., VPN, X.X.X.X, TCP, PPTP, IP
- Discussion threads 2007-11-08
- Problems with NAT on Cisco PIX 501
- I am having problems keeping my users on the Internet. The NAT seems to work fine after rebooting the PIX, but after a period of inactivity like overnight the user cannot get back on the Internet. A quick look at the "show xlate" command shows that their address is not...
- Tags: authentication, Cisco PIX Firewall, Cisco Systems Inc., H323, IP, Network Address Translation, networking, novatec1@..., PPP, ppp authentication, TACACS+, TCP
- Discussion threads 2007-01-23
- PowerRadius (zip)
- PowerRadius is a standard radius server for network authentication, accounting. It's easy to use, and can be used for telecommunication accounting platform, PPP authentication, accounting server. It supports PPP, PPPoE, PPTP, VPN, VoIP, ADSL, Cable Modem, CDMA, GSM, GPRS, and WLAN.
- Tags: Accounting, Authentication, PowerRadius, Operational Accounting, Financial Services, Networking, Finance
- Software downloads 2006-04-12
- WinRadius (zip)
- WinRadius is a standard RADIUS server for network authentication, accounting. It's easy to use, and can be used for telecommunication accounting platform, PPP authentication, accounting server. It supports PPP, PPPoE, PPTP, VPN, VoIP, ADSL, Cable Modem, CDMA, GSM, GPRS, WLAN (802.1x) It's a perfect authentication, accounting solution for wide-band, VoIP,...
- Tags: Accounting, Authentication, WinRadius, Operational Accounting, Financial Services, Finance
- Software downloads 2003-11-10
- Help with Pix 501 config
- I am taking over the management of a Pix 501 first cisco product for me that was used only for VPN and remote access. Now the box needs to be used for web access (internet surf & email) and VPN/remote access. When the pix was hooked up to...
- Tags: Network technology, NETWORKING, TCP/IP, Network security, jszabo@..., IP, dedicatedworkstation, pix
- Discussion threads 2007-07-19
- Remote Access VPN on Pix
- Hi there!I have Pix 6.3.3 and run PDM 3.0 and start VPN wizard to configure remote users enable to connect my network, But unfortunately they are unable to connect .I configured VPN connection on windows 2003 and set PPTP and PAP protocol...but I get Error 678.I don't know what to...
- Tags: Network technology, NETWORKING, VPNs, Network security, remote access, max_2000i@..., failover, failover ip address, IP, IP address
- Discussion threads 2007-07-25
- Changing from PPPoA to PPPoE on Cisco 837
- I was recently informed by the new AT&T that they are changing my DSL service from PPPoA to PPPoE and I will need to make changes to all of my routers (we use Bellsouth's VPN Service over their DSL). I am not that familiar with configuring DSL Routers as I...
- Tags: NETWORKING, Network technology, john@..., Cisco Systems Inc., PPP, IP, dialer, PPPoE, IP address
- Discussion threads 2007-04-11
- Cryptanalysis of Microsoft's Point-to-Point Tunneling Protocol (PPTP)
- The Point-to-Point Tunneling Protocol PPTP is used to secure PPP connections over TCP/IP links. In this paper we analyze Microsoft's Windows NT implementation of PPTP. We show how to break both the challenge/response authentication protocol Microsoft CHAP and the RC4 encryption protocol MPPE, as well...
- Tags: PPTP, Microsoft Corp., VPNs, Network Security, Networking
- White papers
- Cisco PIX 501 Remote VPN Problem
- I've been searching for days for the solution to this problem. A lot of people seem to have the problem, but no one has posted a solution, i.e., exact commands to solve the problem.I have a Cisco PIX 501 and am trying to create a VPN that would allow employees...
- Tags: TCP/IP, NETWORKING, Network technology, brady711@..., Cisco Systems Inc., Cisco PIX Firewall, VPN, TCP, IP, access-list
- Discussion threads 2007-06-14
- Cisco PIX 501 VPN Problems
- I've been searching for days for the solution to this problem. A lot of people seem to have the problem, but no one has posted a solution, i.e., exact commands to solve the problem.I have a Cisco PIX 501 and am trying to create a VPN that would allow employees...
- Tags: TCP/IP, NETWORKING, Network technology, brady711@..., VPN, Cisco Systems Inc., Cisco PIX Firewall, TCP, IP, access-list
- Discussion threads 2007-06-13
- Cisco PIX 501 VPN NATing
- I've been searching for days for the solution to this problem. A lot of people seem to have the problem, but no one has posted a solution, i.e., exact commands to solve the problem. I have a Cisco PIX 501 and am trying to create a VPN that would allow...
- Tags: TCP/IP, NETWORKING, Network technology, Cisco Systems Inc., brady711@..., Cisco PIX Firewall, TCP, IP, access-list
- Discussion threads 2007-06-13
- VPN PPP negotiation problem
- Win2K DC using RRAS as a RAS server. Linksys VOIP router, VPN enabled, ports 1723 & 47 forwarded to server, server is the DMZ. When attempting the connection the TCP session is established, PPTP connection established, but the PPP LC config request is not responded to. Packet trace info Any...
- Tags: it management, jdeleo@..., negotiation, PPTP, router, RRAS, server, VPN
- Q&A 2005-07-01
- PPTP VPN port 4545 access
- We have a high end D-Link VPN router. We want some equipment within the internal network to send a TCP message on port 4545 to a workstation connected through PPTP VPN. Unfortunately we cannot even ping the outside workstation from the inside. Is this a PPTP thing...
- Tags: VPNs, Network security, TCP/IP, curtisf@..., PPTP connection, PPTP, GRE, PPTP VPN
- Discussion threads 2007-06-27
- xp vpn authentication failing on repeated ppp lc configuration requests
- I have an xp vpn client connecting to an xp vpn server both workstations running xp professional. I get up to the user authentication step and WireShark shows me repeated ppp lc configuration requests and then it dies. What could be the problem?
- Tags: networking, vpn, software, windows, xp, dovidf@..., PPP
- Discussion threads 2006-11-24
- Step-by-Step Guide: Deploying SSTP Remote Access
- Secure Socket Tunneling Protocol SSTP is a new form of VPN tunnel with features that allow traffic to pass through firewalls that block PPTP and L2TP/IPsec traffic. SSTP provides a mechanism to encapsulate PPP traffic over the SSL channel of the HTTPS protocol. The use of PPP allows support for...
- Tags: PPP, Traffic, Secure Socket Tunneling Protocol, Microsoft Windows, VPNs, Networking, Network Security, Microsoft Windows Server 2008, Security, Telecommunications, Operating Systems, Software
- White papers 2007-12-01
- VPN
- I CONNECTED VPN THROUGH PPTP, AFTER SUCCESSFULLY LOGON VPN BY PPTP FIRSTLY MY INTERNET WAS NOT WORKING AFTER CHANGE SETTING IN PPTP PROPERTIES I CAN ACCESS INTERNET. AFTER THAT BUT NOW I CANNOT PING PPTP PROXY.PLS SUGGEST
- Tags: VPNs, Network security, INTERNET, harishmanju08@..., PPTP, VPN
- Discussion threads 2007-10-10
- PPTP Update
- After those technical hiccups you can now find the entirePPTP series in one place: Learn to install and configure a PPTP VPN connection with open source Poptop
- Tags: PPTP
- Blog posts 2006-01-26
- How to Tell if the VPN is Encrypted?
- I have a router with VPN capability. How to tell if the VPN connecter is encrypted? Which command I should look for? Does "encapsulation ppp" or "ppp authorization vpn" commands means the VPN connection is encrypted?Encapsulation ppp is hinting at e
- Tags: VPNs, NETWORKING, Network security, SECURITY, Working IT, VPN, PPP
- Discussion threads 2006-10-30
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