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rules
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Location: Cape Town, South Africa

L2TP/IPSec VLAN no HTTP (port 80)

Fri Sep 13, 2019 7:02 pm

Hi All

Yet another L2TP snag on my list 😅 On one of our Mikrotik routers I have 4 incoming L2TP/IPSec connections and although at first glance all looks good (I can ping all devices) I can't seem to HTTP into any devices on 2 of those connections. If I VPN from my PC to one of those 2 Routers I have no such issue?

How/where does one fault find something like this?

Thanks,
R
 
nostromog
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Re: L2TP/IPSec VLAN no HTTP (port 80)

Fri Sep 13, 2019 10:11 pm

Looks like a MTU issue. You can measure the mtu using ping ... size=<n> do-not-fragment , changing n until you doing the maximum that answers, and adjust the MTU of the interface, etc


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User avatar
rules
just joined
Topic Author
Posts: 21
Joined: Tue Feb 19, 2019 12:10 pm
Location: Cape Town, South Africa

Re: L2TP/IPSec VLAN no HTTP (port 80)

Mon Sep 16, 2019 11:09 am

Awesome, thanks nostromog, had to lower the MTU to 1350 😉👍

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