Allow network Traffic Access to PC behind the second Firewall

I have configure the second firewall but i facing the problem to allow the 192.168.1.0 traffic to coming in the second firewall I set-up ,please advice what should I do to allow 192.168.1.0 PC to access 192.168.2.0 and also allow behind firewall PC able to access internet.

First firewall Configuration
--------------------------------
WAN Interface:206.123.123.555         Default Gateway:206.123.123.500
LAN Interface:192.168.1.1(hide NAT)
default Route:0.0.0.0 0.0.0.0 206.123.123.300

Second firewall
-------------------
WAN Interface:192.168.1.100         Default Gateway:192.168.1.1
LAN Interface:192.168.100.1(hide NAT)
default Route:0.0.0.0 0.0.0.0 192.168.2.1
YaYangTeahAsked:
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bbaoIT ConsultantCommented:
> default Route:0.0.0.0 0.0.0.0 192.168.2.1

the last line looks unusual.

normally, the interface to default gateway should be a host on the internal LAN subnet looked like 192.168.100.x.

where is the 192.168.2.1 from??
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YaYangTeahAuthor Commented:
Sorry , the default route is correct ,but the second firewall LAN IP is 192.168.2.1
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bbaoIT ConsultantCommented:
> what should I do to allow 192.168.1.0 PC to access 192.168.2.0

if you want any computer on the 192.168.1.0 subnet to access any host on the 192.168.2.0 subnet, you should not use NAT on the second firewall. instead, routing is required, hence you need to configure the firewall to act as normal router.
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YaYangTeahAuthor Commented:
Please advice how should I configure to my Second firewall interface and how to do the routing.


First firewall Configuration
--------------------------------
WAN Interface:206.123.123.555         Default Gateway:206.123.123.500
LAN Interface:192.168.1.1(hide NAT)
default Route:0.0.0.0 0.0.0.0 206.123.123.300

Second firewall
-------------------
WAN Interface:192.168.1.100         Default Gateway:192.168.1.1
LAN Interface:192.168.2.1
default Route:0.0.0.0 0.0.0.0 192.168.2.1
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bbaoIT ConsultantCommented:
on the 1st firewall, add one more static routing item to send all network traffic targeting 192.168.2.0 subnet to 192.168.100.1.

on the 2nd firewall, change the work mode from NAT to router. nothing else needs to be changed.
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