Telefonaktiebolaget Lm Ericsson (publ)

Göran Eneroth

Henrik Basilier

Michael Liljenstam

Linus Andersson

Björn Bodén

Kyösti Toivanen

A node in a first network domain and a method performed thereby for transmitting a data packet to a VPN client in a second network domain, the node and the VPN client being part of a VPN, wherein the first and second network domain are connected by means of a third network domain are provided. The method comprises receiving, from an application server, a first packet comprising a first IP header and a payload; and determining a DCSP. The method further comprises adding a second header comprising the determined DCSP and an IP address of a VPN client resulting in a second packet and encrypting the second packet. Further the method comprises adding a third header to the encrypted second packet resulting in a third packet, the third header comprising a destination address of a node in the second network domain, and transmitting the third packet in an IP tunnel terminating at the node in the second network domain.

Growing community of inventors

Tyresö, Sweden

Göran Eneroth