Hello,
I have the following setup:
My network at Location A (Juniper SRX5800) advertises IP Pool #1 after which the downlink traffic for IP Pool #1 is routed to my Location B (Mikrotik) via GRE Tunnel between Juniper & Mikrotik. But the network uplink traffic from Location B flows via seperate ISP directtly connected to Mikrotik router and not via Location A(Juniper). So this is an example of Asymmetric routing.
Now the problem is,
When I try to visit some websites, they do not open. But if I manually change MTU from default 1500 to 1460 for windows PC connected to mikrotik router at Location B, the websites opens up just fine.
Please help me where am I going wrong. Thanks a lot. !