Avaya 9608 Administration page 52

Administering DHCP and HTTP servers
support values with lengths up to 255 octets when set in a configuration file, shorter
values must be used when setting them in DHCP.
The codes supported and the corresponding parameters are as follows.
- Option 51 - DHCP lease time.
If this option is not received, the DHCPOFFER is not be accepted. Avaya
recommends a lease time of six weeks or greater. If this option has a value of
FFFFFFFF hex, the IP Address lease is assumed to be infinite as per RFC 2131,
Section 3.3, so that renewal and rebinding procedures are not necessary even if
Options 58 and 59 are received. Expired leases cause Avaya IP Telephones to reboot.
48 Administering Avaya 9601/9608/9608G/9611G/9621G/9641G IP Deskphones SIP
Code Parameter
1 No parameter is set, but the value must be
6889.
2 HTTPSRVR
3 HTTPDIR
4 HTTPPORT
5 TLSSRVR
6 TLSDIR
7 TLSPORT
8 TLSSRVRID
9 L2Q
10 L2QVLAN
11 PHY1STAT
12 PHY2STAT
13 PROCSTAT
14 SIG
15 SIP_CONTROLLER_LIST
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