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SubjectStrange netmasks.
I have been routing a subnet through my PPP link, i.e., 204.178.47.0.
We "own" 204.178.40.0 -> 204.178.47.255. This has worked fine for about
a year.

Now some MiCrO$oFt garbage, that I can't control, executes a variation of
SNMP which sends ARP packets to every possible machine on the LAN. This
happens at two-second intervals.

If these packets go into my PPP Link, they use 100% of the bandwidth
continuously so I can't use my PPP Link to route a subnet. If I use
only the first few addresses of the subnet, I should be able to mask
out the rest and therefore only get ARP packets sent to 7, rather than
254 possible nodes. This should make my link usable again.

How do I do this? I don't think the kernel will let me mask out a portion
of a subnet. Should I just brute-force filter the stuff in the PPP link?
Note, I had to do this to get rid of the NETBIOS packets encapsulated
in broadcast packets that MiCrO$oFt calls Netbeui.

This MiCrO$oFt garbage is being executed by powerful "managers" who have
taken over the Network, so I can't control them. As a matter of fact, once
they find out that I have direct access to the Internet, I'm done (gone).

Cheers,
DJ
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Richard B. Johnson
Analogic Corporation
Email : rjohnson@analogic.com, johnson@analogic.com
Penguin : Linux version 2.1.44 on an i586 machine (66.15 BogoMips).
Warning : It's hard to stay on the trailing edge of technology.
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