Arp tries on various *nix based systems.

Posted by salparadise on Server Fault See other posts from Server Fault or by salparadise
Published on 2010-11-23T16:08:02Z Indexed on 2011/01/04 7:55 UTC
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linux

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router

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icmp

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junos

Does anyone know what determines the amount of arp tries a router will make? I have different behaviors with two devices, if I try to traceroute to a non-existent host on a subnet that belongs to an interface on the router, a Linux box will try to arp 3 times and then return a host un-reacheable icmp message. Junos will continuosly try to arp and not return anything. Is there a sysctl value that determines this or anything at all.

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