My fault, you are correct, I thought about that at a lower level, just
ping and see if it works, didn`t thought about getting an ARP back even
without getting a reply. I`ll keep my nose out of things it doesn`t
belong in from now.
Frimmel, Ivan (ISS South Africa) wrote:
From what I can recall from IP 101 I did years ago .. Pinging a host
will still resolve an IP to MAC (ARP), the host may not echo the ICMP
back.. But you should still get an ARP table entry on the requestor.. Am
I wrong?
-----Original Message-----
From: Stefan Ivascu [mailto:[EMAIL PROTECTED]
Sent: Monday, October 24, 2005 10:55 AM
To: [email protected]
Subject: Re: [pfSense Support] Diagnostics: DHCP leases v0.88
I think it would be better to combine those 2, only using ping can be a
little obscure, what if a user drops icmp packages, and the machine
apears to be down when it is actualy alive?.
What about trying to do a sniff of some sort on the network, to see if
the machine has any kind of trafic ?
Frimmel, Ivan (ISS South Africa) wrote:
What about doing a ping back to the device rather than using ARP ? Then
you can use the live/dead terminology instead? i.e. do a ping on a
static lease to determine actual status client status? I would rather
know if the device is up rather than whether it has requested/renewed
its lease?
-----Original Message-----
From: Bill Marquette [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 23, 2005 2:07 AM
To: [email protected]
Subject: Re: [pfSense Support] Diagnostics: DHCP leases v0.88
On 10/22/05, Imre Ispanovits <[EMAIL PROTECTED]> wrote:
Hi,
I noticed that on the "Diagnostics: DHCP leases" page all static
leases (I have only this kind) shows as offline.
I am using v.88 CF image on a PC (Bao's image), but I guess that this
is not Cf dependent.
_all_ of them? Even the one for the machine you are connecting to the
admin interface from? The "online/offline" comes directly from the ARP
cache of the firewall - online really just means it's active, but
active was already taken (and I couldn't come up with a better name for
what active did). If someone can come up with better wording for the
'active' lease, which is just a lease that isn't expired (ie.
someone actually has a valid lease on it), then I'll change the
online/offline text to active/inactive (which really makes more sense
for what it's checking).
--Bill
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