IPv6 transition mechanism: Difference between revisions

Revision as of 23:56, 27 June 2024

Revision as of 00:21, 28 June 2024

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==Transport Relay Translation==

RFC 3142 defines the '''Transport Relay Translation''' ('''TRT''') method. TRT employsacts DNSas translationan intermediate device between AAAAtwo andhosts. AThe recordsfunction knownof asthe ''[[DNS-ALG]]''translator asis definedto inconvert RFCIPV6 2694into IPV4 addresses and vice versa. TRT accomplishes this translation through IP address mapping and a custom IP address<ref>{{cite web |last1=Hagino |first1=J. |last2=Yamamoto |first2=K. |title=An IPv6-to-IPv4 Transport Relay Translator |url=https://www.rfc-editor.org/rfc/rfc3142 |website=https://www.rfc-editor.org |publisher=rfcRequest for Comments Editor |access-editor.orgdate=28 June 2024}}</ref>.

The address, for example, if packets are to be transmitted from an IPv6 address (fec0:0:0:1::/64) to and IPV4 address (10.1.1.1) would read as fec0:0:0:1::10.1.1.1. The packets are routed towards the translator firstly through an IPv6/TCP protocol and then from the translator to the IPv4 host through an IPv4/TCP protocol<ref>{{cite web |last1=Shanmugaraja |first1=P. |title=Design and Implementation of Transport Relay Translator and its security Mitigations |url=https://www.researchgate.net/publication/290350020_Design_and_Implementation_of_Transport_Relay_Translator_and_its_security_Mitigations |website=https://www.researchgate.net |publisher=Research Gate |access-date=28 June 2024}}</ref>.

TRT employs a similar operation to DNS translation between AAAA and A records known as ''[[DNS-ALG]]'' as defined in RFC 2694.<ref>{{cite web |last1=Srisuresh |url=https://www.rfc-editor.org/rfc/rfc2694 |website=https://www.rfc-editor.org |publisher=Request for Comments Editor |access-date=28/06/2024}}</ref>

==NAT64==