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Cisco 670 as firewall

Do the Cisco 670 series DSL routers provide an effective business class firewall against intrusion and DOS attacks? (Assuming they've been upgraded to latest software versions).

I realize these routers do not provide firewall features for implementing security policies or managing VPN access. But I am interested in the question of blocking intrusion.

Thanks,

Dave

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New Member

Re: Cisco 670 as firewall

I don't consider it a "business class" firewall at all. However, the final question about blocking intrusion: yes, you can set up pretty comprehensive access-lists to restrict and control access to a point. However, the other things which makes a box a firewall will always be missing.

As far as DoS attacks, I think it would crack with almost no effort at all. Such a small box will be pretty busy with legitimate traffic, let alone trying to fend of a DoS attack.

Unless you can upgrade this device with the Cisco IOS Firewall feature set (and I don't think it can), I wouldn't use it as a firewall for anything above SOHO or small office use. Even then, I'd be darned sure the customer understands the position he will be in.

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