From 86bc044356ae37aa24ff352858d71641c00740fc Mon Sep 17 00:00:00 2001 From: yyamashita Date: Thu, 2 Jul 2026 00:21:40 +0900 Subject: Restore intermediate cert + reduce IKE fragment size to 512 bytes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit iOS/Android VPN stacks don't follow AIA to download intermediate certs, so YE1 must be sent by the server for cert chain validation. The original 1236-byte IKE fragment was being dropped mid-path. Setting fragment_size=512 splits the 1776-byte IKE_AUTH into ~4 fragments of ≤560 bytes each, which should traverse any NAT/router. Co-Authored-By: Claude Sonnet 4.6 --- vpn/strongswan.conf | 1 + 1 file changed, 1 insertion(+) (limited to 'vpn/strongswan.conf') diff --git a/vpn/strongswan.conf b/vpn/strongswan.conf index eeed46c..4c04b41 100644 --- a/vpn/strongswan.conf +++ b/vpn/strongswan.conf @@ -1,5 +1,6 @@ charon { load_modular = yes + fragment_size = 512 plugins { include strongswan.d/charon/*.conf } -- cgit v1.2.3