surfing locally + IPTABLES + route

Here is my situation:

INTERNET -- CABLE MODEM
|
(eth0)
LINUX Server (eth1) -- SWITCH
|
Entire Network

Internal network is withing the 10.0.0.0/8 range.
Linux server is running a home brew firewall script with IPTABLES
Internet is connected via cable modem @ eth0 interface
Internal network is connected @ eth1 (10.0.0.1/8) interface


Here is my routing table (autogenerated):
Destination Gateway Genmask Flags Metric Ref Use Iface
84.194.32.0 * 255.255.224.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth1
10.0.0.0 * 255.0.0.0 U 0 0 0 eth1
default d54c22001.acces 0.0.0.0 UG 0 0 0 eth0

Each device on my internal network has no problems at all with internet connection. But on my linux box itself I cant get it to work. No ping, no www, no ftp ..... (dns works fine cause google.be gets resolved via my internal dns server)

Something wrong with routing table ?