Yeah, im really sure that i need AH+ESP. AH provides another level of integrity check, at least it does not not let to change IP src,dst or some ip header values.

I did manage to make it work but only with IKEv1. When i prompt ikev2=insist, then it stucks in this messages:


000 #1: "test-conf":500 STATE_PARENT_I1 (sent v2I1, expected v2R1); EVENT_v2_RETRANSMIT in 22s; idle; import:local rekey
000 #1: pending Phase 2 for "test-conf" replacing #0

In tcpdump i see:
18:23:19.498595 IP remote-host.isakmp > local-host.isakmp: isakmp: phase 1 I ident 18:23:22.076667 IP remote-host.isakmp > local-host.isakmp: isakmp: phase 1 I ident 18:23:22.426342 IP local-host.isakmp > remote-host.isakmp: isakmp: parent_sa ikev2_init[I] 18:23:22.498534 IP remote-host.isakmp > local-host.isakmp: isakmp: phase 1 I ident 18:23:25.076666 IP remote-host.isakmp > local-host.isakmp: isakmp: phase 1 I ident 18:23:28.076644 IP remote-host.isakmp > local-host.isakmp: isakmp: phase 1 I ident


------
WBR
Kuznetsov Konstantin, Engineer
e-mail: kkuznet...@web.1tv.ru
mobile: +7 905 7111332

01.12.2016 16:46, Paul Wouters пишет:
On Thu, 1 Dec 2016, Кузнецов Константин wrote:

Sorry, forget to mention that transport mode is using.

Hi! I have a Centos 6 and i REALLY NEED to make AH+ESP on libreswan-3.15-5.3.el6.x86_64

Is there any way to do it? I m trying to make 2 conf files one fpr ah and one for esp and in this way only AH works, if i delete ah.conf, then esp conf works perfectly. But both AH and ESP does not work.

If you provide two configurations with the only difference being
type=esp versus type=ah, then you are creating two conflicting
configurations and the result is undefined.

People often mistakenly think they need AH+ESP. Libreswan does not
support ESP without authentication, so it is always authenticated
but it is not via AH+ESP. Only some very old racoon daemons are
still known to use AH+ESP.

So the important question is, are you really really sure you mean
AH+ESP?

Paul



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