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OpenVPN server on RT-AX55, client connects but no internet

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xpro6000

New Around Here
Hello everyone

I setup an OpenVPN server on my Asus RT-AX55 router. I exported the client config and loaded it into my Android OpenVPN client, the client successfully connects to the server, but I can not access the internet. I tried this on my WiFi network and on mobile data.


Below is a screenshot of my configs for the OpenVPN server

1681346049901.png



Below are the relavant logs when my phone connects to the OpenVPN server. No new logs appear when I try to load a webpage.


Code:
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 TLS: Initial packet from [AF_INET6]2607:fb90:25de:dd5:411c:245d:f8fd:ece6:48183 (via 2001:558:6043:23:d196:7d91:808c:819a%eth0), sid=9ee5de7d fc46fd9b
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 VERIFY OK: depth=1, C=TW, ST=TW, L=Taipei, O=ASUS, CN=RT-AX55, emailAddress=me@myhost.mydomain
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 VERIFY OK: depth=0, C=TW, ST=TW, L=Taipei, O=ASUS, CN=client, emailAddress=me@myhost.mydomain
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_VER=3.git::d3f8b18b:Release
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_PLAT=android
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_NCP=2
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_TCPNL=1
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_PROTO=30
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_CIPHERS=AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305:AES-128-CBC
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_LZO_STUB=1
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_COMP_STUB=1
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_COMP_STUBv2=1
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_GUI_VER=net.openvpn.connect.android_3.3.1-9079
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 peer info: IV_SSO=webauth,openurl
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 PLUGIN_CALL: POST /usr/lib/openvpn-plugin-auth-pam.so/PLUGIN_AUTH_USER_PASS_VERIFY status=0
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 TLS: Username/Password authentication succeeded for username 'MYUSERNAME'
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 Control Channel: TLSv1.3, cipher TLSv1.3 TLS_AES_256_GCM_SHA384, 1024 bit RSA
Apr 13 00:34:35 vpnserver1[22963]: 2607:fb90:25de:dd5:411c:245d:f8fd:ece6 [client] Peer Connection Initiated with [AF_INET6]2607:fb90:25de:dd5:411c:245d:f8fd:ece6:48183 (via 2001:558:6043:23:d196:7d91:808c:819a%eth0)
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 MULTI_sva: pool returned IPv4=192.168.100.6, IPv6=(Not enabled)
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 MULTI: Learn: 192.168.100.6 -> client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 MULTI: primary virtual IP for client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6: 192.168.100.6
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 PUSH: Received control message: 'PUSH_REQUEST'
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 SENT CONTROL [client]: 'PUSH_REPLY,route 192.168.50.0 255.255.255.0 vpn_gateway 500,redirect-gateway def1,dhcp-option DNS 192.168.50.1,route 192.168.50.1,block-outside-dns,route 192.168.100.1,topology net30,ping 10,ping-restart 30,ifconfig 192.168.100.6 192.168.100.5,peer-id 0,cipher AES-256-GCM' (status=1)
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 Data Channel: using negotiated cipher 'AES-256-GCM'
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
Apr 13 00:34:35 vpnserver1[22963]: client/2607:fb90:25de:dd5:411c:245d:f8fd:ece6 Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key



Any idea what the problem could be?
 
Last edited:
Try disabling IPv6 and connecting using only IPv4 (on both client and router). I'm not sure how well the VPN server on the router supports IPv6.
 

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