fix for Android MTU/MSS issues 错误信息

Checklist

[ ] I read the README
[ ] I read the Important notes
[ ] I followed instructions to configure VPN clients
[ ] I checked IKEv1 troubleshooting, IKEv2 troubleshooting, enabled logs and checked VPN status
[ ] I searched existing Issues
[ ] This bug is about the IPsec VPN server Docker image, and not IPsec VPN itself

Describe the issue 所有默认选项没有改变，只是在[你的 env 文件]()中添加 VPN_ANDROID_MTU_FIX=yes 出现如下报错log

To Reproduce Steps to reproduce the behavior:

Expected behavior A clear and concise description of what you expected to happen.

Logs Enable logs, check VPN status, and add error logs to help explain the problem, if applicable.

~ docker run \
--name ipsec-vpn-server \ --env-file /root/docker-ipsec-vpn-server/vpn.env\ --restart=always \ -v ikev2-vpn-data:/etc/ipsec.d \ -v /lib/modules:/lib/modules:ro \ -p 500:500/udp \ -p 4500:4500/udp \ -d --privileged \ hwdsl2/ipsec-vpn-server 776f1da4e253016da2ad6f019e70f771af5a60d3df78dc00f066aa655023f25d ➜ ~ docker logs ipsec-vpn-server

Retrieving previously generated VPN credentials...

Trying to auto discover IP of this server... iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablefilter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables table nat': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablenat': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded.

Applying fix for Android MTU/MSS issues... iptables v1.8.8 (legacy): can't initialize iptables table mangle': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. iptables v1.8.8 (legacy): can't initialize iptables tablemangle': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded.

Starting IPsec service...

Server (please complete the following information)

Docker host OS: [e.g. Ubuntu 20.04]
Hosting provider (if applicable): [e.g. GCP, AWS]

Client (please complete the following information)

Device: [e.g. iPhone 12]
OS: [e.g. iOS 15]
VPN mode: [IPsec/L2TP, IPsec/XAuth ("Cisco IPsec") or IKEv2]

Additional context Add any other context about the problem here.

hwdsl2 / docker-ipsec-vpn-server

fix for Android MTU/MSS issues 错误信息 #347