One thing you can try if you want to avoid needing super user
privileges is to send a small UDP packet to the given IP, which will
force the kernel to ARP for the address if it is not already present.
Then you can check the routing table through sysctl() by passing in
{CTL_NET, PF_ROUTE, 0, AF
On Wed, 23 Mar 2005, Charlie Schluting wrote:
Olivier Nicole wrote:
? (10.0.0.1) at 00:e0:29:ad:5a:aa on em0 [ethernet]
will do the trick, but it is a bit too heavy for the purpose, I'd
prefer a solution that only send an ARP request.
If you just want to avoid the DNS lookup, you can use arp -an.
I
On Thu, Mar 24, 2005 at 10:58:37AM +0700, Olivier Nicole wrote:
> But what i really want to avoid is sending any IP/ICMP packet when the
> ARP resolution is all I need. (And some people even filter out the
> ICMP echo request packets (Windows XP firewall), so I have to wait for
> the time out).
po
> > ? (10.0.0.1) at 00:e0:29:ad:5a:aa on em0 [ethernet]
> >
> > will do the trick, but it is a bit too heavy for the purpose, I'd
> > prefer a solution that only send an ARP request.
> >
>
> If you just want to avoid the DNS lookup, you can use arp -an.
> Its much faster :)
Thanks. Off course I
Olivier Nicole wrote:
? (10.0.0.1) at 00:e0:29:ad:5a:aa on em0 [ethernet]
will do the trick, but it is a bit too heavy for the purpose, I'd
prefer a solution that only send an ARP request.
If you just want to avoid the DNS lookup, you can use arp -an.
Its much faster :)
-Charlie
___
Hi,
Is there a command, or a short C code that I could use to resolve the
MAC address for a given IP address?
# ping -c 1 10.0.0.1
PING 10.0.0.1 (10.0.0.1): 56 data bytes
64 bytes from 10.0.0.1: icmp_seq=0 ttl=64 time=0.974 ms
--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 packets re
