From 8f0380a933f420320716de61a5838400117dbb8a Mon Sep 17 00:00:00 2001 From: yyamashita Date: Thu, 2 Jul 2026 00:52:41 +0900 Subject: Disable IKE fragmentation, use IP-level fragmentation for iOS iOS may have a bug where it advertises N(FRAG_SUP) but fails to reassemble IKE fragments in IKE_AUTH responses. Switching to fragmentation=no forces the large IKE_AUTH response to be sent as a single UDP packet with IP-level fragmentation, which iOS's standard IP stack handles correctly. Co-Authored-By: Claude Sonnet 4.6 --- vpn/swanctl.conf.tpl | 1 + 1 file changed, 1 insertion(+) (limited to 'vpn/swanctl.conf.tpl') diff --git a/vpn/swanctl.conf.tpl b/vpn/swanctl.conf.tpl index da988e0..1fc84df 100644 --- a/vpn/swanctl.conf.tpl +++ b/vpn/swanctl.conf.tpl @@ -1,6 +1,7 @@ connections { ikev2-eap { version = 2 + fragmentation = no # iOS/macOS/Android 互換の暗号スイート proposals = aes256gcm16-prfsha256-ecp256,aes256-sha256-ecp256,aes256gcm16-prfsha384-ecp384,aes256-sha256-modp2048,aes256-sha1-modp2048 -- cgit v1.2.3