Hello,
thanks for your reply
linux-os wrote: >
When they 'disappear', use `arp -d hostname` to delete the entry from the ARP tables. Then see if you can ping it. It is possible that the destination machine got re-routed and the new router's HW address wasn't updated in the ARP tables. If this is the case, I don't know hot to 'fix' it, but it's a new data-point. When you have dynamic routing, there needs to be some way to update the ARP tables even though they eventually expire.
There is no router between sender and destination host, they are on the same subnet and connected on the same switch.
The fact that `ping -r` works seems to show that the ARP table has stale entries in it.
Even directly after reboot when the arp table is empty?
Peter
-- Peter Kruse <[EMAIL PROTECTED]>, Chief Software Architect Q-Leap Networks GmbH phone: +497071-703171, mobile: +49172-6340044 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

