Firewall Wizards mailing list archives
Re: stealth firewalls
From: Dave Mitchell <dave () jnsnet com>
Date: Thu, 17 Jan 2002 16:43:39 -0700
Irwin, Netscreen's line of firewalls allow you to run in bridged or routing mode and provide stateful inspection inbound/outbound and more. I've used these for quite a while, and they work well in bridging mode. They have a loopback IP "system-ip" that *can* be configured for management. Using the "sys-ip" allows one to configure a VPN using this as the tunnel endpoint. It's a hardware based appliance, and gets very good throughput. Throughput obviously depends on the model. The NS5-XP has two 10mb/fd interfaces and the more expensive models have 3 or more 100mb/fd. Obviously performance will degrade based on the type and number of IPSec tunnels. -dave On Wed, Jan 16, 2002 at 02:00:53PM -0700, Irwin Lazar wrote:
I'm reading up a bit on stealth mode firewalls and was wondering what the industry view is toward these types of boxes. From my research, stealth mode firewalls act as LAN switches or bridges, and do not actively modify the packets they process (such as decrementing TTL). Is this correct? It seems there are some obvious advantages to stealth mode firewalls since they are completely hidden at the IP layer, but I'm wondering if there are any significant drawbacks. It seems that products are limited, only Sun's SunScreen & BSD Linux support this functionality. Any thoughts? Irwin _______________________________________________ firewall-wizards mailing list firewall-wizards () nfr com http://list.nfr.com/mailman/listinfo/firewall-wizards
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Current thread:
- stealth firewalls Irwin Lazar (Jan 16)
- Re: stealth firewalls Nate Campi (Jan 17)
- RE: stealth firewalls Ofir Arkin (Jan 18)
- Re: stealth firewalls ark (Jan 18)
- RE: stealth firewalls Don Flanagan (Jan 19)
- Re: stealth firewalls Volker Tanger (Jan 17)
- Re: stealth firewalls ark (Jan 18)
- Re: stealth firewalls Volker Tanger (Jan 18)
- Re: stealth firewalls ark (Jan 18)
- Re: stealth firewalls Peter Lukas (Jan 17)
- Re: stealth firewalls Dave Mitchell (Jan 18)
- Re: stealth firewalls Roelof JT Jonkman (Jan 18)
- <Possible follow-ups>
- Re: stealth firewalls ark (Jan 17)
- Re: stealth firewalls ark (Jan 18)
- Re: stealth firewalls Volker Tanger (Jan 18)
- Re: stealth firewalls Valerie Anne Bubb (Jan 19)
- Re: stealth firewalls Valerie Anne Bubb (Jan 19)
- Re: stealth firewalls Nate Campi (Jan 17)