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RFC 4459
MTU and Fragmentation Issues with In-the-Network Tunneling,April 2006
- File formats:
- Status:
- INFORMATIONAL
- Author:
- P. Savola
- Stream:
- IETF
- Source:
- NON WORKING GROUP
Cite this RFC:TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC4459
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Abstract
Tunneling techniques such as IP-in-IP when deployed in the middle ofthe network, typically between routers, have certain issues regardinghow large packets can be handled: whether such packets would befragmented and reassembled (and how), whether Path MTU Discoverywould be used, or how this scenario could be operationally avoided.This memo justifies why this is a common, non-trivial problem, andgoes on to describe the different solutions and their characteristicsat some length. This memo provides information for the Internet community.
For the definition ofStatus,seeRFC 2026.
For the definition ofStream, seeRFC 8729.