Cisco VPN :: PPTP Between Windows Clients And 2921 Router
Oct 23, 2011
I have a trouble with PPTP VPN between Windows clients and Cisco 2921 router with RADIUS (IAS) authorization. When I try to connect to Cisco 2921 from Windows 7 using MS-CHAP v2 I receive error 778: it was not possible to verify the identity of server . Then I use PAP - everythig is OK. On Windows XP the same situation.
Cisco config:
version 15.0
service timestamps debug datetime msec
I need to establish PPTP VPN to 877 modem/router from Internet.The VPN client is a Windows XP standard VPN client.I configured the router basing on the document: "Configuring the Cisco Router and VPN Clients Using PPTP and MPPE". url...And... It works quite nice BUT only when I use PAP protocol to authenticate the user.When I try to use 'MS-CHAP' or 'MS-CHAP v2' I get error 691 on the client side("Access was denied because the username an/or password was invalid on the doman.") [code]
I am struggling to have my PPTP traffic to get routed through NAT to reach other Server LAN segment. I am using Cisco 2921 router as a PPTP server.This Cisco 2921 router is working as PPTP server and doing NAT also to reach Server LAN segment (LAN-B).My problem is after PPTP connection establishes I cannot reach any of the LAN segment, but after connecting PPTP I can browse Internet without any issue, but none of the LAN element is reachable. Please have a look on the configuration I am posting 2921 router configuration to suggest something, I have also attached the network setup for better understanding…Just to update Clients in LAN-A can access Internet as well as servers (LAN-B). [code]
We have a Cisco 891 with this configuration belowI got several computer on my lan that needs to connect to an external Windows server with pptp. The windows server is not mine but it works. The clients are using the windows connection manager. We can connect to the windows pptp server for hours sometimes.But, sometimes we can just connect about 3-4-5 minutes, and it auto-disconnects. Is there something wrong in my configuration ? I heard the cisco router is messing with the keepalive or the connection state.It seems to happens when i have more than 5-6 clients connected at the same time on the same server. I got theses mesages : Link to VPN failed. OR ERROR 619 OR ERROR 651Before, I had a RV042 and it worked like a charm. We were 10 on the vpn server and it was working. I dont see why Its not working now.
version 15.0no service padservice tcp-keepalives-inservice tcp-keepalives-outservice timestamps debug datetime msec localtime show-timezoneservice timestamps log datetime msec localtime show-timezoneservice password-encryptionservice sequence-numbers!hostname Quantis891!boot-start-markerboot-end-marker!!aaa new-model!!aaa authentication login local_authen localaaa authorization exec local_author local !!!!!aaa session-id common!!!clock timezone PCTime -5clock summer-time PCTime date Apr 6 2003 2:00 Oct 26 2003 2:00!!!no ip source-route!!ip dhcp excluded-address 10.10.10.1ip dhcp excluded-address 10.1.1.201 10.1.1.254! [Code] .....
We are deploying softphones for remote employees in our company. We currently are using Cisco 2921's with VPN enabled.
All of the clients who connect with the Cisco VPN x86 client are getting 00:00:00:00:00:00 for their MAC Addresses, and all of the Cisco VPN x64 bit clients are all getting the same MAC Address, although it is different than the x86 clients.
This is causing the softphones to not work, as they all need to be sending independant MAC addresses.
don't steer the topic from PPTP to IPsec and other types of VPN which is more secure than PPTP,,,,etc have got this scenario windows 7 is acting as vpn client at home and windows XP is acting as vpn server at workAt home (LAN address is 192.168.10.x/24)And I configured windows 7 as VPN client same as here [CODE]
Can I configure a PIX (515), as PPTP client to establish a tunnel with non-Cisco PPTP server ? Can my PIX initiate this type of connection ?Today, I use a PC with PPTP client to establish this and I want replace this with a PIX and I don´t want depends of a PC.
We have a 1941 router configured with LAN/WAN access. Additionally, we need to allow outside Microsoft RRAS connections to an inside Windows 2003 R2 Server. What commands are required to enable this?
WAN IP: 211.XXX.XXX.XXX Server IP: 10.XXX.XXX.XXX
We've configured the 1941 router to allow outside RDC/RDP to the server at 10.XXX.XXX.XXX
Region : Hongkong Model : TL-WDR4300 Hardware Version : V1 Firmware Version : TL-WDR4300_V1_121225
Even I have upgraded to the newest firmware for WDR-4300, it still not allowed me to connect to a windows PPTP VPN. It worked when I changed to use my old router. On the other hand, when I turned the hardware NAT, I found that the Cisco VPN connection would be dropped after I used for a few minutes. Similarly, it worked when I changed to use my previous old router.
We have a working configuration for L2TP-IPSec connection from a native Windows XP client to the ASA 5510. When trying to set up a connection from a Windows 7 client, the connection fails with the message that all SA proposals are unacceptable? Is this coexistence possible, and what parameters would I have to change to get this working. I have understood that the Windows 7 client requires som higher security proposals, but have not found what these are. And at the sam time we are concerned about not destroying the VPN connection for our existing XP clients.
I have a ASA5505 and it has a vpn set up. The VPN user connects using the Cisco VPN client. They can connect fine (the get an ip address from the ASA), but they can't ping the asa or any clients on the network. Here is the running config:
I have 4 desktops cat5 to Dlink DIR 615 router. All work fine. Any wireless clients, laptop or netbooks, see the desktop computers for a while then disconnect somehow. All machines can see the Internet through the router at all times. The desktops disappear from the laptop/netbooks but the wireless machines can be seen from the desktop computers but clicking on them gets 'Access Denied' message after a wait.3 desktops = XP, 1 98SE. All laptop/netbooks = XP
I've just discovered this thing in Windows Event log. The DHCP-Client log is full with this: the client received a NAK from the DHCP Server. Strangely, they still get the desired IP address. (Which are reserved adresses for the MAC adresses.)So I've looked at the logs in the DIR-615 (rev.D, FW: 4.13), and found this:
Working on Windows desktops and cannot map drives to unix servers without undoing a particular windows update. network policy pushes this update out again. Cannot change that policy....Active Directory Bridge solution needed to map drive letters from windows users to Unix (SUN) systems?
We've got 5 remote offices with cisco 881 routers, Win Clients behind them and all routers connected via vpn site-to-site to central software router.
Mostly all clients recieve ip addresses from routers in their subnets 192.168.x.024 We have Win DHCP Server in subnet 192.168.181.024
The problem is that some of clients,physically sutuated in 192.168.10.024 subnet, recieve ip addresses from Win DHCP server from 192.168.181.024 subnet.
Here's part of cisco cfg:
interface FastEthernet0 no ip address ! interface FastEthernet1
I am trying to make an application sharing software which shares multiple applications in windows to various clients. My idea is to modify VNC code and use it to share applications on different ports to different clients.
We are deploying BYOD with Cisco ISE 1.1.2 and WLC (5508) using 802.1x authentication.Windows clients cannot connect to 802.1x SSID with the following error on ISE:Authentication failed : 12321 PEAP failed SSL/TLS handshake because the client rejected the ISE local-certificate
The client doesn't have preconfigured wifi profile or root certificate installed.The concept of BYOD suppose that you can connect your device without any installed certificates and preconfigured wifi-profiles.
The problem is that Windows 7 supplicant does not send TLS alert in pop up window, when connecting to 802.1x SSID.If this alert is seen, than you can accept it and proceed the connection. After that you will be asked to install ROOT-cert, get your own cert and etc.So, the question is: how to make the windows supplicant to show the pop-up window with TLS alert?
p.s. the attached file shows the example of pop up TLS-alert window
I'm trying to configure 1700 K9 router to act as PPTP client and connect to Microsoft VPN server (in order to enable all clients on LAN to seamlessly access host on remote location). [URL]
I'm using GMS3 to test everything in lab environment. I managed to connect to Microsoft VPN server but the connection drops immediately. Below is debug info from router R1 (router R2 just simulates host on LAN) and configurations for both routers. The only clue I got from debug is that immediately before closing connection there's a message "CCP: Failed to negotiate with peer"...
R1#sh debug PPP: PPP detailed event debugging is on MPPE Packet Details debugging is on
Region : UnitedStates Model : TL-MR3020 Hardware Version : V1 Firmware Version : latest ISP :
I have problem to get pptp working. I setup pptp VPN server on my home router and configured pptp dialup on my laptop. If my laptop connect to internet directly, I am able to connect to home router via PPTP VPN. However, if I connect TL-MR3020 to internet(wired) and then connect my laptop to TL-MR3020 wirelessly, I can browse internet without problem. The problem is I cannot connect to home router via PPTP VPN any more. I believe the problem is on TL-MR3020.
I need a router to connect to our ISP by BGP and in a future to a second ISP. Our ISP is going to provide us about 300.000 route entries by BGP. So router 2921 would be enough??? or should i go to a higher model?We are going to have 100Mbps with this ISP and probably in 3 months we'll have to double it. Also we'll need IPv6 support.I saw router performance [URL]f and it's has 480.000 PPS and 245 Mbps but for 64 bytes lenght packages. If the packets are bigger the throughput should be best I suppose... 1500 bytes about 5,5 Gbps. In the case you consider the model is sufficient, the flash or RAM should be increased?
I have a remote location that has a Linksys/Cisco RV042 router [URL] that allows PPTP connections based on username and password combinations. There are no intermediary routers between this device and the internet - only a DSL modem. A secondary WAN connection is not present.
I am able to dial into this VPN using the Windows XP and Windows 7 dialers from any of my local free-wifi locations(e.g. Starbucks). I WAS able to connect to this VPN connection from my house when my home router was a Buffalo brand router.
I have replaced the Buffalo router with a 2620(non-XM) that is connected in ROaS fashion to a 2950 switch. I need some guidance on what in my config is not allowing me to connect to this remote site.
Home network info: Local subnets : 192.168.x.x
Remote network info: Local subnet : 10.214.x.x
The Windows XP dialer client indicates that the username and password challenge is where the connection fails. It ultimately gives me the error code 619. I have performed a Wireshark packet capture of an attempt to connect from ip 192.168.10.11. This packet capture shows multiple "Configuration Request" packets being exchanged between the two endpoints, but does not ever show an exchange of authentication.
My nat translation table shows an entry for both a GRE tunnel as well as port 1723 between 192.168.10.11 and the WAN port of the RV042 when attempting to establish this VPN.
I have attached my 2620 configuration for your review.
I've got a problem with my new Linksys E1200 (v1) router. It cuts the bandwidth of my PPTP connection with ISP (which is 50 Mbps) down to about 12 Mpbs. My firmware is the latest one (v1.0.03 build 4). I've done some reading and found out that it's pretty common problem between Linksys E-Series routers and ISPs that use PPTP/L2TP.
I setup my Windows 8 desktop for a PPTP VPN server so I can connect my iPhone 5 to it.Using the Cisco Connect Firmware, as I was having internet speed issues with the Smart Wi-Fi Firmware and I wasn't loving the interface of the Smart Wifi Firmware anyway.According to the router the firmware is up to date. All three VPN settings are enabled.PC is set to a static IP internally. 192.168.1.116 to be precise.PPTP port forwarding (1723) is set to the PC's static IP, though I have tried without port forwarding and it didn't work either.If I have my iPhone connected to the wireless network and point it to the internal IP address of the PC, I can connect to the VPN.If I bypass my router and hook my desktop directly to the modem (and point my iPhone to the IP that gets assigned to my desktop from my ISP) I can connect to the VPN.But if I have everything hooked up normally and try to connect to the VPN from my iPhone (using the IP address my ISP assigned to the router), I get a PPTP server not responding error.
When my ea4500 is connected to other router with internet connection I can access CCC. But if ea4500 connected via pptp to internet by itself, i cannot use CCC because router tells 'no internet connection', even if I have this connection. How to fix it?
We currently have an ASA 5520 communicating with 10 ASA 5510's, all on static outside addresses. I was asked to add 5 additional 5510's on dynamic address. All worked well in testing until it was decided that some of the dynamic clients needed to talk to each other.
I have a 2821 ciso router and i want to setup a vpn for my windows domain users , they must to reach the domain from outside. There is posibile to intregrate Active directory auth with pptp running on 2821 router? kind of dialin via radius server(IAS running on windows server 2003).
I cannot connect to a PPTP on the outside of my network.We have a RV082, port 1723.It says verifying username and password but then disconnects.The error log says Blocked IP Spoofing.
My University has free Internet at student homes, but we need to login by PPTP to get an official, public IPv4 and be able to reach the outside world. The network people at the University says that when the PPTP is up, everything should be open (no firewall of any kind).
have my WRT160NL that gets a 10.10.73.0/23 address from DHCP on WAN port. Currently I have 10.10.74.21. My internal network uses 172.17.17.0/24.My PPTP-server is located at 10.192.1.1 and when I connect, I usually get an IP in the 158.37.73.0/24-range. Currently I have 158.37.73.28. I use DynDNS to make sure I always know the public IP by the host binders.dyndns.info ...
So, I have Remote management enabled with HTTP and HTTPS, any IP and default port 8080. But no response from the outside world seems to go through.If I turn of the "filter ICMP" but keep the SPI Firewall on, I get ping reply from external sources towards my router, but still no HTTP or HTTPS response.I also have a Torrent I try to port forward to to be active, this is 23277, and this is the only thing that keeps coming up in the incoming log on my router.
It's not possible to connect to the routers management over the PPTP-tunnel?And why can't I get the port forward to work .. Same reason? PPTP 158.37.73.28 -> 172.17.17.100 (LAN) won't work?
I am trying to allow PPTP traffic through my Linksys WRT320n to a PPTP VPN server on my home network.The Linksys WRT320n is running firmware 1.0.05 build 002Mar 31, 2011.I have created a Port Forwarding rule on the Linksys to allow TCP & UDP port 1723 through to my internal IP of the PPTP VPN server,but everytime I try to connect with a PPTP client from outside of my network I get a connection error on the client.Checking the PPTP VPN servers logs I see the following errors (Please note all IP's have been masked) Mar 2 11:15:07 ap-01 pptpd[5300]: CTRL: Client x.x.x.x control connection startedMar 2 11:15:07 ap-01 pptpd[5300]: CTRL: Starting call (launching pppd, opening GRE)Mar 2 11:15:07 ap-01 pppd[5301]: pppd 2.4.4 started by root, uid 0Mar 2 11:15:37 ap-01 pppd[5301]: Exit.Mar 2 11:15:37 ap-01 pptpd[5300]: GRE: read(fd=8,buffer=41fe30,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logsMar 2 11:15:37 ap-01 pptpd[5300]: CTRL: PTY read or GRE write failed (pty,gre)=(8,9)Mar 2 11:15:37 ap-01 pptpd[5300]: CTRL: Reaping child PPP[5301]Mar 2 11:15:37 ap-01 pptpd[5300]: CTRL: Client x.x.x.x control connection finished
From looking at the above errors, it seems as if the Linksys isn't forwarding GRE through to my PPTP server.I have tried various settings, including enabling and disabling the PPTP Passthrough option on the Linksysbut still can't get PPTP to work.What is the correct way to get GRE traffic forwarded through the Linksys?