BTNet Leased Line wires-only

miro_ivanovic

I have a new wires-only leased line from BTnet that I need to setup. This is a 100Mbps leased line fibre product via an ADVA with fibre LC interface, it is not Broadband FTTP/FTTC. BTnet have provided me a usable IP range with /29 subnet and a 'next hop' address which is off subnet.

Information for your subnets that are directly connected to your BTnet connection:

IPv4 Directly Connected Section:
IPV4 Network Address :
IPV4 Network Mask :
IPV4 BTnet NTE Router LAN Address :
The ???IPV4 BTnet NTE Router LAN Address??? is your default gateway. The ???IPV4 BTnet NTE Router LAN Address??? + 1 is your first useable address and should be configured on your equipment. The same format should be followed for IPV6 if you are using those addresses.

DHCP Required?:
Number of IPs for DHCP:

IPv6 Directly Connected Section:
IPV6 Network Address :
IPV6 Network Mask :
IPV6 BTnet NTE Router LAN Address :

Information for your subnets that are not directly connected to your BTnet connection:

IPv4 Non-Directly Connected Section
IPV4 Network Address: 217.x.x.112
IPV4 Network Mask: 255.255.255.248
IPV4 Next Hop Address: 81.x.x.114

For DNS look up use the following DNS servers:
ns3.bt.net - 194.72.6.57
ns4.bt.net - 194.73.82.242

Any idea how to configure Netgate 2100 with this information?

heper

@miro_ivanovic https://docs.netgate.com/pfsense/en/latest/recipes/route-public-ip-addresses.html

miro_ivanovic

@heper - thanks for the link - will try and will let you know about result

stephenw10

Have you omitted the data from the above BT supplied info? Or are those really all empty?

I expect to see a smaller subnet use to route the /29 to you. It could be DHCP. Something that can see 81.x.x.114 in the same subnet.

Connecting to those ADVA boxes can be painful. Are you able to get a link to the 2100 WAN dircetly?

Steve

miro_ivanovic

@stephenw10 - I'm planning to go to the site in next couple of days and will test it.
81.x.x.114 is /29 subnet, @heper already provided me with good URL so will try that solution first.

ADVA is set to SFP output so I'm waiting for to transcoder or SFP cable [whatever comes first] to test it.

Cheers,
Miro

miro_ivanovic

@miro_ivanovic - correction - 81.x.x.114 is /31 subnet

stephenw10

@miro_ivanovic said in BTNet Leased Line wires-only:

81.x.x.114 is /31 subnet

Ah so that could be the two IPs they route the /29 across.

miro_ivanovic

@heper - I have set up the pfSense router [only two physical NICs assigned as WAN and LAN]
From the documentation, I did WAN setup but was not sure how to create an OPT1 interface, see Configure OPT1 [as I said have only two physical NICs].

How to setup and use public addresses:
IPV4 Network Address: 217.x.x.112
IPV4 Network Mask: 255.255.255.248

Want to use them for my internal servers on LAN interface [NAT, port forwarding, ...].

Can pfSense do that or do I need two of them [one to have WAN set for 81.x.x.114, LAN set for public IP subnet 217.x.x.112/29, second one WAN to be 217.x.x.113/29 and LAN with 192.168.x.x/24?

stephenw10

I expect to see the WAN set as 81.x.x.115 with gateway 81.x.x.114.

Then you can use 217.x.x.112/29 on an internal interface directly. That could be the LAN but if you want to use one of those public IPs on a server directly you would need to use the /29 on the interface the server is on. If you only have two NICs that could be a VLAN interface.

Steve