Add a Site-to-Site connection to a VNet with an existing VPN gateway connection (classic)

Introduction to Multipoint GRE and NHRP

Dynamic Multipoint Virtual Private Network
By joining you are opting in to receive e-mail. I'd say even split between first three commenters, all of whom provided workable solutions to fit the question. I wear a lot of hats Note that all sites have access to Internet via satellite, so basically public IP's are available on each end. Solutions Learn More Through Courses.

Point to Multipoint VPN

point to multipoint vpn

By default, the holdtime of a NHRP entry is 2 hours; Cisco recommends that this be changed to 10 minutes seconds. If neither of these settings is changed and something happens to the mappings on the hub router, the spokes will not attempt to re-register for 40 minutes leaving the connection unidirectional for that amount of time mapping works from the spoke to the hub, but not from the hub to the spoke.

This allows for some interesting forwarding options which are not possible with the other configurations shown, including the ability to forward traffic directly from spoke-to-spoke without having to route traffic through the hub.

With all of the configurations shown up to this point the only available way for spokes to send traffic to other spokes was to forward traffic through the hub.

This is fine but does require an extra hop that may not be required when forwarding traffic. In the sample configurations and topology used in this article, all of the routers are configured to connect through an Ethernet Cloud Ethernet switch.

This could however be the same as being configured using an Ethernet Internet connection through any ISP. The point here is that each of the spokes has the ability to forward traffic directly to each other on the underling IP network.

When this is possible it would typically be more efficient for spoke-to-spoke traffic to be routed directly between the spokes without having to jump through the hub router. With the other configuration options shown above this is not possible and all tunneled traffic regardless of destination must be forwarded through the hub.

However, if both the hub and the spokes were configured to use mGRE then the ability to set up dynamic spoke-to-spoke tunnels is permitted. The configurations shown in Figure 4 show how to do this.

This information can then be used for each of the spokes to dynamically set up mGRE tunnels between each of the other spokes as the need is required. Both the disabling of split horizon and the disabling of next hop marking is required. The reason behind the latter is because, by default, an EIGRP router will advertise routes with a destination of self i.

Without this all of the spokes would still forward traffic through the hub router. Hopefully the content in this article will get the reader interested and allow them the ability to play around with these features on their own equipment or labs. Ready to test your skills in Computer Networking? See how they stack up with this assessment from Smarterer. If this message remains, it may be due to cookies being disabled or to an ad blocker.

Sean Wilkins is an accomplished networking consultant who has been in the IT field for more than 20 years, working with several large enterprises. We use cookies to make interactions with our websites and services easy and meaningful. Get every solution instantly with Premium. Start your 7-day free trial. I wear a lot of hats PPTP is built into almost every version of windows so extra software client does not need to be installed on the PC. The server and client are very easy to setup and would probably take 1hr tops to setup.

You can find more info at http: Experts Exchange Solution brought to you by Your issues matter to us. I use and very strongly recommend OpenVPN, which is extremely fast, reliable, flexible, easy to configure, multiplatform, and uses OpenSSL based encryption.

This is usually how I test out a new tunnel; just run the command right there at the prompt, and if it works, I kill the process and write the command up in an rc. When you do so, you'll need to pass arguments to. Sorry Ivan, None of those are a good choice. And I quote from the site: Ivan, you need to cut to the chase and buy a hardware VPN endpoint.

Linksys DIHV is a good choice. That is the protocol you want. Also look for the number of tunnels. But 8 concurrent users will melt your DSL line anyway. Sorry I don't have better news but that's the way life works sometimes. If you want your average Windows user trying to figure out how to configure a VPN from their laptop then you have a solution If you want a solution that your end users will not destroy, and -you know- can actually use, then you have another problem.

There are "solutions" and then there are "solutions. L2TP is a tunneling protocol that offers no encryption. For staff members using notebooks, PPTP is definitely the best way to go

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Hello, Is it possible and how would this be done to have a point to multipoint vpn on FreeBSD. If I have an ADSL connection with a static IP I would like to be able to connect this box to more than Reviews: 9. Jan 11,  · I am working with Site to Site Vpn connection. I have four site to site vpn tunnel on my cisco RVW. Now my question is how to confirm that each traffic from my local lan will only use its vpn tunnel from 4 site to site ipsec vpn tunnel. how to. If i am looking for exact point to multipoint configuration example where can i find? can u paste the exact link because i have been searching all along but i find vpn examples but not point to mulitpoint related (if the configuration includes .