So above is my network layout, currently my setup is
lanA uses wanA for internet access under ISP 1
lanB uses wanB for internet access under ISP 2
wanA and wanB both have public wan IPs.
dual wan setup, lanA using wanA and lanB using wanB for internet access is achieved currently by mwan3, which is perfectly working, now my issue is the following...
When I have traffic going from lanA -> wanB IP (85.98.70.56) it doesn't route or masquerade the traffic using wanA ip (85.98.69.55), when using traceroute or mtr, it seems like it's a direct connection instead of routing the packets through wanA's internet
$ mtr 85.98.70.56 -r -n
Start: 2024-12-29T02:45:34+0800
HOST: xxx-MS-7681 Loss% Snt Last Avg Best Wrst StDev
1.|-- 85.98.70.56 0.0% 10 0.1 0.2 0.1 0.2 0.0
my expectation is, it would produce the following route like as if it was masquerading and accessing wanB through wanA internet
$ mtr 85.98.70.56 -r -n
Start: 2024-12-29T02:45:34+0800
HOST: xxx-MS-7681 Loss% Snt Last Avg Best Wrst StDev
1.|-- 172.18.0.1 0.0% 10 0.1 0.2 0.1 0.2 0.0
... ISP routes and hops here inserted ...
xx.|-- 85.98.70.56 0.0% 10 0.1 0.2 0.1 0.2 0.0
note the "ISP routes" meaning it goes out of wanA internet to access wanB. Hope I can have guidance on this matter. Thank you!