Re: ip protocol 89

From: Alan J. Flavell (flavell@mail.cern.ch)
Date: 03/28/03 

From: "Alan J. Flavell" <flavell@mail.cern.ch>
Date: Fri, 28 Mar 2003 18:42:12 +0100

On Thu, Mar 27, lightfoots inscribed on the eternal scroll:

> I keep getting this alert on zone alarm--
> The firewall has blocked routed traffic from 195.14.134.164 to 224.0.0.5 (IP
> Protocol 89).

224.* are IP multicast addresses (class D).
224.0.0.5 is OSPF-ALL.MCAST.NET

Either your network is multicast-enabled, or someone on the same
network is running the relevant protocol.

Try google for some of the above terms.

If you're not using OSPF yourself (GateD server etc.) then you can
basically ignore this.

Can you tell zone alarm to ignore packets without reporting them?
That's what I do on my firewall recipes for IP multicast packets,
if I have no other use for them.

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