Error De Ras 721
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INFOACCESO Normativa Acceso Inalámbrico Windows 10 Windows 8 y 8.1 Windows 7 Windows Vista Windows XP Linux Mac OS X Leopard Wifi en smartphones Android Windows Phone Windows Mobile iphone/itouch Ubuntu Touch Blackberry Symbian Acceso VPN Windows 10 Windows 8 y 8.1 Windows 7 Windows Vista Windows XP Linux Mac OS X Leopard Clientes Cisco Cliente Cisco para Windows Cliente Cisco para Mac OS X VPN en smartphones Windows Mobile ipad / iphone Android Acceso desde Biblioteca Preguntas Frecuentes Problemas wifi Errores VPN Acceso a unidades de red Acceso al correo UPV Antivirus Ahorro energía Encendido remoto Expandir Contraer Errores VPN y RAS Infoacceso Preguntas frecuentes Errores VPN https://support.microsoft.com/en-us/kb/923944 y RAS ... Errores con los que nos podemos encontrar al intentar conectar por VPN 1. Error 800 o 678.- siempre que se recibe este error es por que hay un cortafuegos que bloquea la conexión VPN. La solución pasa por añadir excepciones a su cortafuegos o antivirus. 2. Error 619.- Éste es un error muy común en las conexiones VPN desde casa. Viene dado porque el router se ha configurado para hacer NAT en https://www.upv.es/contenidos/miw/infoweb/infoacceso/dat/723787normalc.html la red interna de casa, es decir, permite conectar varios ordenadores a Internet simultáneamente. Este error se soluciona configurando correctamente el router para que permita conexiones VPN por PPTP, o bien haciendo una conexión VPN que utilice el protocolo IPsec en lugar del PPTP. Para conectar por VPN utilizando el protocolo IPsec, utilice el cliente VPN de Cisco para conectar. 3. Error 691.- se da cuando se han introducido mal las credenciales, ya sea el nombre de usuario o bien la contraseña. También puede deberse a que el usuario está sancionado sin el 'permiso de marcado', lo cual le inhabilita para conectarse por VPN y a la wifi. En este último caso deberá limpiar su ordenador de virus y, una vez limpio solicitar el reestablecimiento del permiso abriendo una incidencia desde http://www.upv.es/gregal 4. Error 721.- Este error se da cuando se está conectando a VPN con el protocolo PPTP y el cortafuegos de la red, o del ordenador, no permite el tráfico del protocolo GRE, (Generic Routing Encapsulation). GRE es Protocolo IP 47. PPTP utiliza GRE para encapsular los datos del túnel. Para resolver este problema, configure el cortafuegos de la red, o del ordenador, para que permita el protocolo GRE 47. Además, asegúrese de que el cortafuegos permita el tráfico TCP en el puerto 1723. Ambas condiciones se deben cumplir para establec
WindowsWindows 10 Windows Server 2012 Windows Server 2008 Windows Server 2003 Windows 8 Windows 7 Windows Vista Windows XP Exchange ServerExchange Server 2013 Exchange Server 2010 Exchange Server 2007 Exchange Server 2003 Outlook Unified Communications/Lync SharePoint Virtualization Cloud Systems ManagementSystem http://windowsitpro.com/systems-management/15-tips-troubleshooting-vpn-connections Center PowerShell & Scripting Active Directory & Group Policy Mobile Networking Storage TrainingOnline Training IT/Dev Connections Webcasts VIP Library Digital Magazine Archives InfoCentersIT Innovators Mobile Computing Business Now Desktop VDI All About Converged Architecture Advertisement Home > Systems http://jcb.rupress.org/content/209/5/721.long Management > 15 Tips for Troubleshooting VPN Connections 15 Tips for Troubleshooting VPN Connections Mar 8, 2000 Paula Sharick | Windows IT Pro EMAIL Tweet Comments 36 Advertisement A few server tips and a bucketful of client error de techniques You can construct a VPN in a myriad of ways, but constructing your VPN is just your first step. After you construct the VPN, you have to troubleshoot it. A minimal VPN implementation has a RAS PPTP server connected to the Internet, a client connected to the Internet, and a PPTP connection between the server and the client. As long as ISP service or Internet connectivity is available, clients can connect to your error de ras server or LAN from anywhere in the world. However, most VPNs aren't as simple as a connected server and client. More often, the VPN server is on a routed LAN segment, often behind a firewall, and the client connection uses an ISP network, which also employs routers and firewalls. You can build a PPTP server as a standalone server or as a domain controller in a couple of steps: You install RAS and the PPTP protocol and configure PPTP ports the same way you configure dial-up connections. Windows NT client setup is equally straightforward: You load PPTP and configure the PPTP connection to locate the PPTP server over the Internet. With such a simple setup, you might assume that the VPN connection will function properly the first time. However, administrators spend a fair amount of time troubleshooting before they successfully deploy a new VPN. Troubleshooting a VPN, like troubleshooting any WAN connectivity problem, is complex because the data travels through many links before it arrives at its destination. For example, data typically flows from the client to an ISP's router, through a firewall, across the ISP's network, maybe across additional ISPs' networks, to the company's router, to a firewall or proxy server, and finally to the destination PPTP server. When a client connects to an ISP (this connection uses the Point-to-Point Protocol—PPP—port
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