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votes
1answer
1k views

GRE: read from PTY failed error when connecting multiple clients to PPTP

I have just installed a pptp server and now I can make it work. The problem is, it can only be connected to by one client. How do I set it up so that it will allow multiple users? Here is the error ...
1
vote
0answers
18 views

Setting up a GRE tunnel on a Cisco ASA 5505 [duplicate]

Possible Duplicate: Set up a GRE tunnel with Cisco PIX-506 v6.3 I'm trying to establish one half of a GRE tunnel, the other being configured by my service provider. I have a Cisco ASA 5505 ...
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2answers
336 views

Set up a GRE tunnel with Cisco PIX-506 v6.3

I'm trying to establish one half of a GRE tunnel, the other being configured by my service provider. I have a Cisco PIX-506-E running Firewall version 6.3(5). Provider Router Public IP: 8.8.8.8 My ...
1
vote
1answer
362 views

how to forward all traffic over a GRE over IPsec VPN on cisco routers?

i have 2 cisco ISR 2821 and 2811 and they are connected over a site to site GRE over IPsec vpn. my question is that, how can i forward all traffic or web traffic to the other router? thanks
0
votes
1answer
159 views

GRE Encapsulation and Multicast

How does GRE Encapsulation actually send multicast traffic? My CISCO textbook tells me that the multicast packet is carried inside a unicast packet. My understanding is: Multicast packet, say for ...
1
vote
2answers
3k views

GRE Tunnel over IPsec with Loopback

I'm having a really hard time trying to estabilish a VPN connection using a GRE over IPsec tunnel. The problem is that it involves some sort of "loopback" connection which I don't understand -- let ...
1
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2answers
596 views

Multiple GRE NAT router

Does there exist a router that supports multiple GRE connections over NAT? Im currently running pfSense, and it only supports 1 at a time. I understand why, its just a drag as there are multiple ...