performance with 20000 classes; release a lease manually

stefan novak lms.brubaker at gmail.com
Thu May 28 12:19:17 UTC 2009


thx for the replies..

i found out that i can set the end lease time of a lease to the start
time via omapi to get the lease free for the new client.
the problem is now that i don't know which client, modem mac or
something else i can query is not getting an ip.
for me its unpossible to see the remote-client.id on discover packages
when no more free leases are available :(

Full DHCP Request with request-id logged:
May 28 13:48:30 dhcp-test dhcpd: Brulog MODEMMAC: 0:1e:69:ef:8e:b5
May 28 13:48:30 dhcp-test dhcpd: DHCPDISCOVER from 00:0f:b0:bb:dd:c2
via 10.62.31.1
May 28 13:48:31 dhcp-test dhcpd: DHCPOFFER on xx.62.31.16 to
00:0f:b0:bb:dd:c2 (novak_hp) via 10.62.31.1
May 28 13:48:31 dhcp-test dhcpd: Brulog MODEMMAC: 0:1e:69:ef:8e:b5
May 28 13:48:31 dhcp-test dhcpd: DHCPREQUEST forxx.62.31.16
(172.55.55.55) from 00:0f:b0:bb:dd:c2 (novak_hp) via 10.62.31.1
May 28 13:48:31 dhcp-test dhcpd: DHCPACK on xx.62.31.16 to
00:0f:b0:bb:dd:c2 (novak_hp) via 10.62.31.1

Only DHCPDISCOVER with no free leases: (no option 82 is logged)
May 28 13:55:30 dhcp-test dhcpd: DHCPDISCOVER from 00:16:d4:3a:d8:d8
via 10.62.31.1: network test: no free leases


@performance:

i think i found the thread about performance:
https://lists.isc.org/pipermail/dhcp-users/2009-May/008905.html
but there is no solution in the thread :/
also
 match if binary-to-ascii(16, 8, ":",  option agent.remote-id) =
"0:1e:69:ef:8e:b5";

is equivalent to :
 match if option agent.remote-id = \00\1e\69\ef\8e\b5

is not working for me...

thx for your help
Stefan



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