Vitaliy Ovsyannikov wrote:
Hello, freebsd-net.I've noticed what it is possible to make incomplete+permanent entries in kernel arp table. xx# arp -s 1.2.3.4 pub arp: invalid Ethernet address 'pub' # arp 1.2.3.4 1.2.3.4 (1.2.3.4) at (incomplete) on vlan1 permanent [vlan] In result of it's permanent entry, kernel doesn't listening for arp-replies for this host. My question is simple: is it bug or feature?
I think i understand why you ask though, the answer could easily go both ways.
But my conclussion was that, to me, the man page and the error message indicates it is a bug. By that i mean that arp reports the ethernet address to be invalid but it still performs the task as if the ethernet address was valid and no synopsis written for this case. I'd go with bug and say that the same application can be done with 'route -blackhole -host 1.2.3.4 127.0.0.1' or something similar.
If it turns out to be the right thing to do then perhaps you would be so kind as to sendbug(1) it?
-- Sten Daniel Sørsdal
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