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Router
19-10-2005, 05:05 PM
Post: #1
Router

Hi there

A router for internet connection has an inbuilt firewall, so you don't need one on the PC. Anyone know if/how the router firewall is kept up to date?

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20-10-2005, 12:16 AM
Post: #2
Router
survivorfan Wrote:A router for internet connection has an inbuilt firewall, so you don't need one on the PC.
This is not quite the case. The firewall on the router may be better or worse than the firewall on your computer. Typically the firewalls built into wireless/ADSL routers are not that clever, and it is sensible to ensure that the individual PCs on your network are all protected by software firewalls.

The additional advantage here is that if you have more than one PC on your network, and one is compromised, that compromised PC has less chance of attacking the other PCs if they are running software firewalls. (The router firewall only protects the internal network from the external network. It does not usually protect PCs on the internal network from each other.)

The thing that is fairly pointless is running two software firewalls on the same PC - that's going to cause conflicts.

Looking at the wider picture, your router firewall has to be more permissive than the software firewalls on your PCs. For example, you may be happy for your own PC to access network gaming, and allow this rule on that PC. You may not be happy to allow it on your children's PCs. You HAVE to allow it on the router firewall. You can then allow it on your PC and disallow it on your children's.

Trying not to bombard you with too much information here.
survivorfan Wrote:Anyone know if/how the router firewall is kept up to date?
It is actually pretty rare for a firewall to need to be updated. There are only a finite number of ways that a firewall can be pierced. This is not like virus detection systems that must continually evolve.

Occasionally you may find that a router manufacturer notices a flaw in the firewall and will release something called a "firmware update" to fix it. This rewrites part of the router's internal programming, and is usually a one-way operation. You can check on the website for your router whether there are any such updates.

Incidentally, if you're wondering why software firewalls seem to be updated so frequently - this is usually not because of an update to the actual firewall "engine" of the program. It's because of updates to the pretty interface, or other "value-added" features of the firewall software, such as pop-up blockers or spam filters.

Final question: why am I up so late? It's because AT LAST, we have both boys at home, and James has spent the last couple of hours coughing off and on, and we're so buzzing, excited and apprehensive that we can't sleep! Smile

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20-10-2005, 11:49 AM
Post: #3
Router
THnaks for the info Blink.

By the way - any ideas on my squished SO?

Oh and great news on having boththe lads at home

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