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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!
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__NOTOC__<indicator name="L2TP">[[File:
An L2TP tunnel is established using the pre-agreed IP addresses, hostname and shared secret. Note that if your LNS rejects the tunnel connection, or fails to respond to the SCCRQ or a subsequent HELLO, then it will be
Once the tunnel is established, a session is established for each connecting data SIM.
*User-Name passed is what is provided by the mobile which is usually blank. Do not use the password 'password' as this will not be passed through.
*IPv6 is not available yet, but is planned for the future if possible.
==Connect Speed==
We've seen various devices give odd Connect Speed settings when they connect. EG, OSX sends:
Connect Speed: 1000000
And a Pfsense has been seen to send 10Mbit/s and even the source code had it hard coded to 10Mbit/s.
[[File:L2TP OS X speed weirdness.png|thumbnail|TCP Dump of OSX L2TP highlighting the 'Connect Speed']]
This means that it is asking for a 1Mbit/s connection. This does not looks like it's configurable either.
From May 2016 we ignore the Connect Speed, and simply limit the speed to 100Mbit/s at our side.
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