subnet routing problem

[Ronnie Pettersson <ronnie68 yahoo com>]

I have a strange (to me) problem with my home network consisting of a
Linksys DSL router, a Linux server/router and two Linux end points (one
laptop and an embedded linux device). My current topology is:

Internet/DSL modem
|
Linksys 
(192.168.1.1 w/ static route to 192.168.0.0/24 via 192.168.1.17)
|
wifi--(192.168.1.101 DHCP) Redhat 9 Laptop
|
(192.168.1.17/24 default gw 192.168.1.1)
Redhat 7.2 Linux Server/Router (kernel 2.4.21)
(192.168.0.1/24 )
|
Ethernet
|
(192.168.0.90/24 gw 192.168.0.1)
embedded linux (kernel 2.4.19)


The laptop and the embedded device can ping the internet and resolve
addresses.

ifconfig shows all interfaces are up and with ip-addresses and
netmasks, etc.

The router/servers ip_tables is flushed with ACCEPT policies.

The router/server  /proc/sys/net/ipv4/ip_forward is 1.

I can not make the server/router route traffic between the laptop and
the embedded device. I know that it's not the optimal topology but at
this point it's the possible way. Optimally I want to have the
server/router on a Linksys ethernet port rather than on the wifi side. 

I've been trying all kinds of configurations for the routing tables
(using route and/or iproute2) but nothing seems to work. Am I missing
something fundamental here?

Thanks
Ronnie Pettersson

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