osmo-ggsn - OsmoGGSN repository

Age	Commit message (Collapse)	Author	Files	Lines
2017-09-24	ICMPv6: Send router advertisement from own link-local address	Harald Welte	1	-8/+4
	I'm not quite sure how I ended up doing this, but for some strange reason the code before this commit is sending the ICMPv6 Router Advertisements from some weird non-standard source address. This is a violation of RFC4861 which clearly states that the source address of router advertisements "MUST be the link-local address assigned to the interface from which this message is sent." Change-Id: Ib444af70fc8f0b433d371281601fd5a37b29039e
2017-08-11	IPv6: Implement IPv6 prefix assignment via ICMPv6 router advertisement	Harald Welte	1	-0/+238
	The 3GPP specs are quite strange when it comes to how an IPv6 address or rather prefix is assigned to an IPv6 PDP context. The designated method for allocating the IPv6 address via the PDP EUA (End User Address) Information Element in the GTP signalling plane is not used to allocate the address/prefix. Instead, the EUA is used to allocate an "interface identifier" to the MS, which it the uses to derive its link-local source address to send a router solicitation. The GGSN subsequently answers witha router advertisement, advertising a single/64 prefix, whihcthe MS then uses to generate it's real IPv6 source address for subsequent communication. Change-Id: Icddf7d30e01d76a4784bcef5787b36f52f703a9f