PPTP client MTU value problem

Installing and Using OpenWrt
41

do I have to install all kernel modules?

42

Run this: opkg install iptables-mod-ipopt

43

No working

traceroute google.com
 1?: [LOCALHOST]                      pmtu 1500
 1:  no reply
 2:  no reply
 3:  no reply
 4:  no reply
^C
44

Is this from a host or from OpenWrt?

45

wireless client

46

Is it connected? The first hop should be the OpenWrt like here.

47

I do not understand. you better try it for yourself the guide on the current wiki. wifi no internet access

48

I am asking whether is the wireless client connected to the OpenWrt. Tracepath stopping at localhost is a sign that it's not connected.

49

connected to the OpenWrt

Tracepath not connected

50

Can you ping 192.168.1.1 ?

52

Screenshot_2020-11-12_213307
Screenshot_2020-11-12_213307540×960 94.3 KB

53

Alright, install tcpdump in OpenWrt, if you don't have it already, and run this command: tcpdump -i any -vn icmp
Then run a ping from the phone to 1.1.1.1 or 8.8.8.8
Then post here the output.

1 Like
54

No internet wifi

Screenshot_2020-11-12_215938
Screenshot_2020-11-12_215938540×960 111 KB

55

How come? You got replies from 8.8.8.8 !
Try to ping google.com

56
2 Likes
57

where should I change the MTU

58

Logically, on the VPN interface, try 1400, 1350, 1300.

59

Thanks work my friend

60

Thanks my friend

2 Likes
61

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