DHCP ser ver and IP ad dress al lo ca ti on
PCs can be pro vi ded with a ma jor por ti on of the con fi gu ra ti on re qui red for LAN and In ter net ac cess via the DHCP
(Dy na mic Host Con fi gu ra ti on Pro to col). The DHCP ser ver in te gra ted into the PABX is ca pa ble of supp ly ing cor re -
spon ding con fi gu ra tions to up to 100 PCs (clients). IP ad dres ses are dy na mi cal ly al lo ca ted to the clients. The DHCP
ser ver task of the PABX sys tem is ac ti vat ed in the in iti al sta tus of the PABX.
You can con fi gu re the in te gra ted DHCP ser ver un der »Net work ad dress al lo ca ti on«.
You can con fi gu re the first IP ad dress as sig ned by the DHCP ser ver. The re qui red num ber of IP ad dres ses is as sig ned
to the PCs (DHCP clients) in as cen ding or der.
Ele ven ad di tio nal IP ad dres ses for the DHCP ser ver are al ways re ser ved for PCs that are in te gra ted through RAS (re -
mo te ac cess ser ver) into the lo cal net work. If the in te gra ted DHCP ser ver is ac ti vat ed the 11 IP ad dres ses which come
af ter the con fi gu red DHCP ad dress ran ge are used for RAS clients.
When the DHCP ser vers are de-ac ti vat ed the 11 IP ad dres ses that come af ter the set DHCP start ad dress will be used
for RAS clients.
Di rect con nec ti on (DHCP)
This set ting is used to uti li ze a di rect WAN con nec ti on with au to ma tic al lo ca ti on of the IP ad dres ses via DHCP. In
this case the IP ad dress is not as sig ned by your PABX sys tem rou ter, but by the net work in which the rou ter is in te gra -
ted. The rou ter DHCP must be de-ac ti vat ed in the con fi gu ra ti on for this.
De fault set ting of the PABX
De fault IP ad dres ses for the lo cal area net work
In its ba sic set ting you can use your PABX sys tem as a rou ter for In ter net ac cess for your lo cal net work. You have to
de fi ne (when con fi gu ring the PABX) the In ter net ser vi ce pro vi der that you wish to use.
The IP ad dres ses for your lo cal area net work are then dis tri bu ted as fol lows:
192.168.1.1 to
192.168.1.49
Free ly as sig na ble IP ad dres ses as for ex am ple for LAN clients with a fi xed IP ad dress
192. 168. 1. 50 to
192.168.1.69
IP ad dres ses that are al lo ca ted to cor re spon ding LAN clients by the PABX sys tem.
(Num ber of DHCP clients: 20)
192.168.1.70 to
192.168.1.80
Re ser ved IP-ad dres ses (11) RAS. The se ad dres ses must al ways re main re ser ved and
may not be as sig ned as set IP addresses.
192. 168. 1. 81 to
192.168.1.249
Free ly as sig na ble IP ad dres ses as for ex am ple for LAN clients with a fi xed IP ad dress
192.168.1.250 IP ad dress for the PABX
192.168.1.251
to
192.168.1.254
Free ly as sig na ble IP ad dres ses as for ex am ple for LAN clients with a fi xed IP address
Note
Plea se note that each IP ad dress can only be as sig ned once. The first and last IP ad dress for a net work may not be as -
sig ned to LAN clients. In this ex am ple: 192.168.1.0 and 192.168.1.255.
Ex am ple for the hint:
255.255.255.0 Sub net mask for all com po nents on the net work (PABX, LAN clients,.. . )
192.168.1.250 IP ad dress for the gate way (PABX)
192.168.1.250
Di rect con nec ti on (DHCP) In tro duc ti on
3
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