GRE RFC 2784 PDF

Canonical URL: ; File formats: Plain Text PDF; Status: PROPOSED STANDARD; Updated by: RFC ; Authors: D. Generic Routing Encapsulation (GRE) is a tunneling protocol developed by Cisco Systems that can encapsulate a wide variety of network layer protocols inside. If the de-encapsulating router has a route for the un-encapsulated destination address going back to the encapsulating router, you will get a.

Author: Kigazragore Gubar
Country: Yemen
Language: English (Spanish)
Genre: Environment
Published (Last): 8 December 2014
Pages: 179
PDF File Size: 18.5 Mb
ePub File Size: 9.37 Mb
ISBN: 715-5-90274-517-2
Downloads: 21609
Price: Free* [*Free Regsitration Required]
Uploader: Vijind

This must be set to 0. There is nothing to say that the two routing tables are in sync.

Retrieved May 14, The Reserved1 field is present only when the Checksum field is present that is, Checksum Present bit is set to one. The tunnel destination is going to the address of the remote router you are terminating the tunnel gde.

If router B does send rrfc back, Router A is supposed to discard them, too, based on the rule. Offset 16 bits The offset field indicates the octet ger from the start of the Routing field to the first octet of the active Source Route Entry to be examined.

  ADELAIDE BRY VISUALIZATION PDF

Then, the IP protocol is responsible for forwarding the packet. Post as a guest Name. This field is used to prevent the packet from being encapsulated all the time. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Generic Routing Encapsulation

Bits are reserved for future use. Indicates the Key field. Sign up using Email and Password.

Such as allowing multicast traffic to traverse the tunnel providing us scalability with the use of a routing protocol. Cisco’s documentation seems to demostrate that they use this exact behavior to make a keepalive work. Thanks for the answer.

RFC – Generic Routing Encapsulation (GRE)

Each SRE has the form: By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. This field contains the number of encapsulations grd GRE packets.

The Reserved1 field is reserved for future use, and if present, must be transmitted as zero. This article needs additional citations for verification. October Learn how and when to remove this template message. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of servicegrd policy and cookie policyand that your continued use of the website is subject to these policies.

  JAYADRATH VADH PDF

By using this site, you agree to the Terms of Use and Privacy Policy. Email Required, but never shown. In this case, the packet MUST be discarded. Pages using RFC magic links Articles needing additional references from October All articles needing additional references. Not set Fragment offset: This is an entirely plausible scenario if the rule is not followed.

Information on RFC ยป RFC Editor

This page was last edited on 28 Novemberat The tunnel source can be a physical interface or an IP address just keep in mind the tunnel source needs to be local on the router.

These bits must be sent as zero and must be ignored on receipt. Sorry, your ge cannot share posts by email. Post was not sent – check your email addresses!