Networking :: Source Routed Packages - IP Rules?

I am building a router and I wonder if I have some rules like this and
/proc/sys/net/ipv4/conf/all/accept_source_route is 0 will it work.

Code:
echo 1000 TEST >> /etc/iproute2/rt_tables
iptables -A PREROUTING -s 192.168.2.0/24 -t mangle -j MARK --set-mark 1
ip rule add fwmark 1 table TEST
ip route add default via 192.168.3.5 dev eth2 table TEST

I am not quite sure is it source routed packages at all. And also even if it works with my router will next firewall drop such packages. I have mentioned before that some things like:

Code:
ip route add default via 192.168.3.5 dev eth2 src 192.168.2.0/24
do not work