Messages in this thread | | | Date | Wed, 23 Jul 1997 19:00:36 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Strange netmasks. |
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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 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- 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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