Penguin
Blame: NatTraversal
EditPageHistoryDiffInfoLikePages
Annotated edit history of NatTraversal version 6, including all changes. View license author blame.
Rev Author # Line
1 CraigBox 1 An Internet draft prepared initially by [Cisco], to allow [IPSec] to work over [NAT].
2
3 In [AH] mode, IPSec headers are signed; any changes to them (like a NAT rewrite for example) will invalidate the header. NAT Traversal lets you tunnel all the [ESP] and [AH] data in packets over [UDP] port 4500, which can have ''their'' headers rewritten all you like.
4
4 CraigBox 5 There is a [NAT Traversal patch for FreeS/WAN|http://open-source.arkoon.net/] which has been fully integrated into OpenSwan and StrongSwan.
1 CraigBox 6
4 CraigBox 7 See also:
6 AndreasSteffen 8 * RFC:3947 Negotiation of NAT-Traversal in the IKE
9 * RFC:3948 UDP Encapsulation of IPsec ESP Packets