Internet/Modem/4Routers/PC

[Devid00]

Hello!
I have a very important task to do. I did everything, but for some reason it doesn't work.
I need your help! I will be grateful to you.
Task:
LTE interface IP:   87.110.156.22 MASK 255.255.252.0
    Default GATEWAY: 87.110.156.1
    DNS: 8.8.8.8
    NAT: Masquerade
    Local IP: 192.168.100.1 MASK 255.255.255.0
    route add 192.168.100.0 MASK 255.255.252.0 192.168.100.254

Using ONLY static IP address and static routes (IP route), ensure Internet access for the laptop.

setup

Setup

Laptop pinging R1 and pinging HomeWireless router

Laptop pinging Router1 - it's fine and worksHome wireless router1 pinging. No response

Wireless roter                                                                  R1 
Internet:                                 LAN                                     Ethernet 0/0                        Ethernet 0/1
IPv4 87.110.156.22                  IPv4 192.168.100.1           IPv4 192.168.100.2           IPv4 192.168.104.1        
Mask 255.255.252.0                 Mask 255.255.255.0         Mask 255.255.255.0          Mask 255.255.255.0
Gateway 87.110.156.1
DNS 8.8.8.8

It's all only work if i change Wireless Gateway 87.110.156.1 --> 192.168.100.1 . But I need to leave gateway the same as in the task.

work.pkt