Internet 1 : Broadband PPPOE
Internet 2 : USB 4G Mobile Internet
I use internet 1 as primary and internet 2 as fail-over / backup. If internet 1 fall or disconnect then internet 2 auto connected.
Now i want help about about this :
Internet 2 is package base internet with small amount of Data Pack. 2 GB Per Month. I want to disable internet fail-over for specific lan and want to enable for specific lan.
Example. #CCTV (192.168.1.2) #DVR (192.168.1.3) #CPU (192.168.1.4)
will work when primary fail or disconnected then backup internet 2 connected. (I ALREADY DID THAT)
But
*Wifi Router (192.168.1.9)
*Laptop (192.168.1.10)
*TV Youtube (192.168.1.11)
Will disable internet 2 when backup line activated.
I mean secondary line when activated as fail-over then WiFi router, Laptop, TV need no INTERNET.
Only needed for CCTV, DVR, CPU because of watch footage from different location.
Your question is a bit confusing,
It appears all the devices are on the same LAN and what you meant to say is that you only want backup for specific devices on the LAN.
Please clarify.
The first thing I would think of is creating a masquerade rule for both ISPs:
add action=masquerade chain=srcnat comment=“SCR_NAT for LAN Users”
out-interface=ISP1 add action=masquerade chain=srcnat comment=“SCR_NAT FOR LAN USERS”
out-interface=ISP2
Then modify the second rule by creating an address list “USE_BACKUP” for those that you want to only include for fail backup to second ISP:
add action=masquerade chain=srcnat comment=“SCR_NAT FOR SPECIFIC LAN USERS”
out-interface=ISP2 src-address-list=USE_BACKUP
Now I am not sure this will work or is the easiest solution to implement or optimal solution but it is what I would try first.
The LAN devices LEFT OUT and not identified in the SRCNAT rule, should not be able to reach the internet or use up any data (I THINK).
Hopefully someone wiser can chime in to confirm.