Mechanism for Provisioning Source IP for Tunneled Packets From User Plane
Methods and computer readable medium are disclosed for providing an outer header for a packet. In one embodiment a method includes receiving an outer header creation IE type encoded and containing instructions to create an outer header, an outer header creation description field taking a form of a bitmask, each bit indicating the outer header to be created in the outgoing packet; wherein when the outer header creation packet creation IE requests creation of an IP header, a source IP address is included in an IP header of an outgoing packet; and sending the outgoing packet including a source IP in the newly added outer IP header.
1 . A method for creating an outer header for a packet, comprising:
receiving an outer header creation IE type encoded and containing instructions to create an outer header, an outer header creation description field taking a form of a bitmask, each bit indicating the outer header to be created in the outgoing packet;
wherein when the outer header creation packet creation IE requests creation of an IP header, a source IP address is included in an IP header of an outgoing packet; and
sending the outgoing packet including a source IP in the newly added outer IP header.
2 . The method of claim 1 wherein when the outer header creation packet creation IE requests creation of an IPv4 header, a source IPv4 address is included in an IPv4 header of an outgoing packet.
3 . The method of claim 1 wherein when the outer header creation packet creation IE requests creation of an IPv6 header, a source IPv6 address is included in an IPv6 header of an outgoing packet.
4 . The method of claim 1 wherein the packet is a Serving Gateway (SGW) downlink packet.
5 . The method of claim 1 wherein the packet is a Serving Gateway (SGW) uplink packet.
6 . The method of claim 1 wherein the packet is a Packet Data Network (PDN) Gateway (PGW) uplink packet.
7 . A non-transitory computer-readable medium containing instructions for creating an outer header for a packet which, when executed, cause a system to perform steps comprising:
receiving an outer header creation IE type encoded and containing instructions to create an outer header, an outer header creation description field taking a form of a bitmask, each bit indicating the outer header to be created in the outgoing packet;
wherein when the outer header creation packet creation IE requests creation of an IP header, a source IP address is included in an IP header of an outgoing packet; and
sending the outgoing packet including a source IP in the newly added outer IP header.
8 . The computer-readable medium of claim 7 further comprising instructions wherein when the outer header creation packet creation IE requests creation of an IPv4 header, a source IPv4 address is included in an IPv4 header of an outgoing packet.
9 . The computer-readable medium of claim 7 further comprising instructions wherein when the outer header creation packet creation IE requests creation of an IPv6 header, a source IPv6 address is included in an IPv6 header of an outgoing packet.
10 . The computer-readable medium of claim 7 further comprising instructions wherein the packet is a Serving Gateway (SGW) downlink packet.
11 . The computer-readable medium of claim 7 further comprising instructions wherein the packet is a Serving Gateway (SGW) uplink packet.
12 . The computer-readable medium of claim 7 further comprising instructions wherein the packet is a Packet Data Network (PDN) Gateway (PGW) uplink packet.