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hwdsl2 avatar hwdsl2 commented on June 24, 2024

@ENEN-YIN 你好！感谢你提供详细的错误报告。VPN_ANDROID_MTU_FIX=yes的解决方案有其局限性，主要适用于 IPsec/XAuth ("Cisco IPsec") 和 IKEv2 模式。对于 IPsec/L2TP 模式，目前该问题并没有较好的解决方案。你可以编辑容器内的 /opt/src/run.sh 并尝试调整 mtu 和 mru 的值（当前为 1280），然后重启容器以生效。该方法不一定有效，你可以试一下。

请参见：

docker-ipsec-vpn-server/run.sh

Lines 594 to 606 in b8c056a

case $VPN_ANDROID_MTU_FIX in
[yY][eE][sS])
echo
echo "Applying fix for Android MTU/MSS issues..."
iptables -t mangle -A FORWARD -m policy --pol ipsec --dir in \
-p tcp -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1361:1536 \
-j TCPMSS --set-mss 1360
iptables -t mangle -A FORWARD -m policy --pol ipsec --dir out \
-p tcp -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1361:1536 \
-j TCPMSS --set-mss 1360
echo 1 > /proc/sys/net/ipv4/ip_no_pmtu_disc
;;
esac

docker-ipsec-vpn-server/run.sh

Lines 479 to 480 in b8c056a

mtu 1280
mru 1280

from docker-ipsec-vpn-server.

ENEN-YIN avatar ENEN-YIN commented on June 24, 2024

好的，感谢解答

from docker-ipsec-vpn-server.

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