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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:Menu-L2TP.svg|link=:Category:L2TP|30px|Back up to the L2TP Category]]</indicator>
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There are two reasons to use L2TP to connect in to AAISP:
# Connect in to AAISP over a third-party internet connection.
#* This gives you your an AAISP IPv4 address and an IPv6 block. This will then give you unfiltered internet access with public IP addresses etc.
#* There are more reasons for doing this and further information and ordering on [https://www.aa.net.uk/broadband/l2tp-service/ A&A L2TP service].
* Plain L2TP '''without any IPsec'''. This is important as some devices may not support disabling encryption on L2TP, eg iPhones
* Check that your ISP/mobile provider does not have features that will block 'VPN' services - eg Vodafone's 'SecureNet' will block access to our L2TP service but can usually be disabled via the provider's control pages/App/etc
*Please use the DNS name (l2tp.aa.net.uk) instead of hardcoding an IP address; IP addresses can and do change. If you have to use an IP, use 194.4.172.12, but do check the DNS for l2tp.aa.net.uk in case it changes.
*Static routes? Some L2TP client's config needs to have a static route to route traffic to the L2TP server directly rather than through the tunnel(!) - in these cases you may need to add multiple static routes and keep them updated as the IPs that l2tp.aa.net.uk may change and increase over time.
=== Speed/Latency Tweaks ===
=== MTU ===
* see: [[L2TP MTU]]
=== Port forwarding on some 'Mobile Broadband' routers ===
We have reports from a few customers who are using 4G/5G mobile data routers for 'mobile broadband' that whilst they do support L2TP they do not appear to port forward the static IP on the L2TP. The web UI suggests that
= Notes on setting up L2TP IN to AAISP: =
{{AAMenu|img=menu-packet.svg|title=MTU|link=L2TP_MTU|text=Learn about MTU and L2TP}}
{{AAMenu|img=Menu-FireBrick.svg|link=L2TP_Client:_FireBrick|title=L2TP from FireBrick|text=Creating a L2TP connection from a FireBrick to AAISP}}
{{AAMenu|img=Menu-Apple.svg|link=L2TP_Client:_OSX|title=L2TP from OSX|text=Creating a L2TP connection from Apple OSX to AAISP}}
{{AAMenu|img=Menu-Linux.svg|link=L2TP_Client:_Linux|title=L2TP from Linux|text=Creating a L2TP connection from Linux/Ubuntu/Network Manager to AAISP using xl2tpd}}
{{AAMenu|img=Menu-Linux.svg|link=Router:Linux_-_Debian_-_With_L2TP_Fallback|title=L2TP Failover with Debian|text=Creating a L2TP fallback for AAISP using xl2tpd}}
{{AAMenu|img=Menu-router.svg|link=L2TP_Client:_OpenBSD|title=L2TP from OpenBSD|text=Creating a L2TP connection from OpenBSD to AAISP using xl2tpd}}
{{AAMenu|img=Menu-Routerboard.svg|link=L2TP_Client:_Routerboard|title=L2TP from Routerboard|text=Creating a L2TP connection from Routerboard to AAISP}}
{{AAMenu|img=Menu-OpenWRT.svg|link=L2TP_Client:_OpenWRT|title=L2TP from OpenWRT|text=Creating a L2TP connection from OpenWRT to AAISP}}
{{AAMenu|img=Menu-voip.svg|link=L2TP_Client:_SNOM|title=L2TP from a SNOM VoIP Phone|text=Creating a L2TP connection from a SNOM phone to AAISP}}
{{AAMenu|img=Menu-router.svg|link=L2TP_Client:_Mobile_Broadband_Routers|title=L2TP from 4G/5G Huawei/Gigacube|text=Creating a L2TP connection 4G/5G Huawei/Gigacube type mobile broadband routers to AAISP}}
{{AAMenu|img=Menu-router.svg|link=L2TP_Client:_Other_Routers|title=L2TP from Other Routers|text=Generic information for creating a L2TP connection from other routers to AAISP (eg Netgear, TP-Link etc that are not listed here
{{AAMenu|img=Menu-router.svg|link=L2TP_Client:_Ubiquiti_Edgerouter|title=Ubiquiti|text=Problems with Ubiquiti Edgerouter
{{AAMenu|img=Menu-router.svg|link=L2TP_Client:_Routerboard|title=MikroTik|text=Create an L2TP connection from a MikroTik Routerboard}}
{{AAMenu|img=Menu-router.svg|link=L2TP_Client:_OpenWRT_with_Policy_Based_Routing|title=OpenWRT-Policy Based Routing|text=Create an L2TP connection from a OpenWRT with Policy Based Routing}}
[[Category:L2TP]]
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