Merge "Change default IP protocol preference from AUTO to IPV4" into udc-dev

This commit is contained in:
Chiachang Wang
2023-05-11 14:00:49 +00:00
committed by Android (Google) Code Review

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@@ -3677,8 +3677,11 @@ public class Vpn {
encapType = IkeSessionParams.ESP_ENCAP_TYPE_NONE;
break;
default:
ipVersion = IkeSessionParams.ESP_IP_VERSION_AUTO;
encapType = IkeSessionParams.ESP_ENCAP_TYPE_AUTO;
// By default, PREFERRED_IKE_PROTOCOL_IPV4_UDP is used for safety. This is
// because some carriers' networks do not support IPv6 very well, and using
// IPv4 can help to prevent problems.
ipVersion = IkeSessionParams.ESP_IP_VERSION_IPV4;
encapType = IkeSessionParams.ESP_ENCAP_TYPE_UDP;
break;
}
return new CarrierConfigInfo(mccMnc, natKeepalive, encapType, ipVersion);