APC MasterSwitches, lock up on DOS attacks
According to APC Technical support (called them today), if you have a APC master switch and it see more that 200-300 packets per sec on its interface it will lock up the unit. The newer units will exhibit the same condition if you send more than around 2000 to 3000 packets per second. We saw this as our units would drop of the net from time to time. They (APC) have no fix for this issue, nor do they have an upgrade path, other than buying a newer unit, for the older systems. Units are not flashable as they use a 27xxx series EPROM on the micro controller card. YUK
According to APC Technical support (called them today), if you have a APC master switch and it see more that 200-300 packets per sec on its interface it will lock up the unit.
My understanding of conventional wisdom is that APC products are acknowledged to have networking stacks such that they are best placed behind strict packet filters. This topic feels potentially tengential to me, of course. --jhawk
"John M. Brown" writes:
According to APC Technical support (called them today), if you have a APC master switch and it see more that 200-300 packets per sec on its interface it will lock up the unit.
Thank goodness for switches. There are several problems with their units, but few alternatives with the same capabilities for the price.
participants (3)
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John Hawkinson -
John M. Brown -
Mark Milhollan