arthurking

If your router (the linksys) does not have any ports open, you are safe..
assuming the router is doing PAT and not NAT..
and your inside addresses are RFC1918 addresses.
(which they're most likely are)
With PAT, connctions are initiated from the inside
and with NAT, connections can be initiated from outside.

Also, for the price of a Linksys router, you can buy yourself
a Really good Firewall which acts as a router but is more
robust than Linksys.

You can gut yourself "checkpoint" firewall (501 series) a used one off ebay
that acts as a router (just cant turn on routing protocols)
It supports VPN (IPSEC)
Statefull inspection firewall
and protects you from most types of DoS attacks.

see white paper: http://www.clearview.co.uk/docs/nets...irewall_wp.pdf

Just an opinion....