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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!

Category:Incoming L2TP: Difference between revisions

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__NOTOC__<indicator name="L2TP">[[File:Menu-L2TP.svg|link=:Category:L2TP|30px|Back up to the L2TP Category]]</indicator>
= L2TPWhy fromuse Customersout toL2TP AAISPservice? =
 
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.
#* Speed is capped at 200Mb/s (3Mb/s for the low-cost Light service).
#* 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]]
You may have to set a lower MTU to accommodate the host ISP, possibly as low as 1462 (or lower for some ISPs and still lower for mobile networks). In theory fragments will work to allow 1500 MTU on our service, but fragments are inefficient, and if everyone sends fragmented packets that could degrade the service.
 
=== 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 portforwardingport-forwarding can be configured, but this seems to only portforwardport-forward the IP address on the mobile data connection and not the IP address on the L2TP connection. We suggest that customers should report this as a bug to the supplier/manufacturer of the router. This can have an impact on using our L2TP service as these routers will be restirctingrestricting the capabilities (ie portforwardingport forwarding). A work-around is to to a separate ethernetEthernet router on your LAN to establish the tunnel.
 
= 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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