Cisco 678

[Corey Edwards]

I'm trying to learn more about the security and feature set of a
Cisco 678 which I recently became admin of.

My boss tells me that when they got the DSL installed the technician
told him the 678 didn't have a firewall, but I've been hammering
away on it with nmap and can't seem to get through. What sort of
firewall does it have? It's running in NAT mode, but is there
anything else it can do? Would you trust this thing to protect your
network, or would you add another firewall?

It appears that the 678 can do syslog logging? Has anybody used that
and if so, how well does it work? Are the logs useful and
informative?

The box has firmware 2.4.2. Is there anything I'm missing with a
later rev, and is it worth the effort to upgrade?

What about running in bridging mode? Is that something that your
ISP has to support, or can you just pick your favorite mode? What
are the benefits and drawbacks to bridging mode?

How capable is the IP filtering? How does it compare to IPTables?
Is CBOS limited in any way? Is it possible to do TCP port redirection
for say a transparent web proxy?

Additionally, if you know of any good sites to read up on the 678
I'd appreciate that too.

Thanks,

Corey