From 996c5469f3b7b309c6194f6eb06a21a6708e80e3 Mon Sep 17 00:00:00 2001
From: LMS235 <lms23@web.de>
Date: Mon, 24 Dec 2018 15:49:44 +0100
Subject: [PATCH] Telekom Hybrid Check

Small check whether Telekom Hybrid will be used to give helpful tips.
---
 scripts/pivpnDebug.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/scripts/pivpnDebug.sh b/scripts/pivpnDebug.sh
index a5d4f77..b850032 100644
--- a/scripts/pivpnDebug.sh
+++ b/scripts/pivpnDebug.sh
@@ -20,4 +20,16 @@ if [[ ${noUFW} -eq 1 ]]; then
     printf ":::\t\t\t\t\t:::\n::\tOutput of iptables\t\t ::\n:::\t\t\t\t\t:::\n"
     iptables -t nat -L -n -v
 fi
+# Telekom Hybrid Check
+wget -O /tmp/hybcheck http://speedport.ip &>/dev/null
+if grep -Fq "Speedport Pro" /tmp/hybcheck || grep -Fq "Speedport Hybrid" /tmp/hybcheck
+then
+    printf ":::\t\t\t\t\t:::\n::\tTelekom Hybrid Check\t\t ::\n:::\t\t\t\t\t:::\n"
+    echo "Are you using Telekom Hybrid (found a hybrid compatible router)?"
+    echo "If yes and you have problems with the connections you can test the following:"
+    echo "Add 'tun-mtu 1316' in /etc/openvpn/easy-rsa/pki/Default.txt to set a hybrid compatible MTU size (new .ovpn files)."
+    echo "For already existing .ovpn files 'tun-mtu 1316' can also be inserted there manually."
+    echo "With Telekom hybrid connections, you may have to experiment a little with MTU (tun-mtu, link-mtu and mssfix)."
+fi
+rm /tmp/hybcheck
 printf ":::\t\t\t\t\t:::\n::\tDebug Output Complete\t\t ::\n:::\t\t\t\t\t:::\n"