I use 'static' (Last digit of TTL indicates which server issued the
lease):
on commit {
if static {
set is-static = " --> STATIC";
option dhcp-renewal-time =
encode-int(43200 / 2, 32); # 43200 = 12 hours
option dhcp-rebinding-time =
encode-int(43200 * 7 / 8, 32);
ddns-ttl =
encode-int((43200 / 2) + 1, 32); # server1
#ddns-ttl =
encode-int((43200 / 2) + 2, 32);
# server2
} else {
set is-static = "";
option dhcp-renewal-time =
encode-int(lease-time / 2, 32);
option dhcp-rebinding-time =
encode-int(lease-time * 7 / 8, 32);
ddns-ttl =
encode-int((lease-time / 2) + 1, 32); # server1
#ddns-ttl =
encode-int((lease-time / 2) + 2, 32); # server2
}
log (
info,
"Host:", pick-first-value(option
fqdn.hostname, option host-name, "(none)")
.
.
, is-static
)
}
host bigbird { hardware ethernet 1c:87:2c:5c:68:72;
fixed-address 192.168.4.2; }
bigbird is static.
Bill
On 2/23/2017 4:45 PM, Craig Huckabee
wrote:
The dhcp-eval man page mentions two boolean expressions - ‘known’ and ‘static’. Does anyone have an example of either from a working configuration ?
I’m running version 4.3.5 and I’ve tried to setup some logging in an ‘if known’ block and ‘if static’ block with no results, so I’m obviously missing something.
Thanks,
Craig
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