If you se lect a con fi gu ra ti on in which some PC re cei ve their IP ad dres ses via DHCP, whi le ot hers use set (ma nu al ly
con fi gu red) IP ad dres ses, the fol lo wing cri te ria must be ful fil led:
·
All IP ad dres ses must be long to the same IP net work. mea ning that the net work part of the IP ad -
dress (and with it, the net mask) must be iden ti cal. Ex am ple:
·
IP ad dress for the PABX>192.168.1.250
·
Ip-net mask of the PABX>255.255.255.0
·
Net work part of the IP ad dres ses:
192.168.1.xxx
·
First usa ble IP ad dress:192.168.1.1
·
(net mask: 255.255.255.0)
·
Last usa ble IP ad dress>192.168.1.254
·
(net mask:
255.255.255.0)
·
First IP-ad dress via DHCP:192.168.1.50 (as per con fi gu ra ti on)
·
Last IP ad dress through DHCP: 192.168.1.69 (ge mäss Con fi gu ra ti on)
·
Num ber of IP ad dres ses by DHCP:
20
·
IP ad dres ses for RAS per DHCP (4 re ser ved)
first IP ad dress:
:
192.168.1.70
last IP-ad dress:
192.168.1.80
·
One IP ad dress may not be used by more than one client at any one time; with re gard to the ex am -
ple gi ven abo ve this me ans that the IP ad dres ses 192.168.1.2 to 192.168.1.49 and 192.168.1.81 to
192.169.1.249 and 192.168.1.251 to 192.169.1.254 can be used for PCs which have ma nu al ly con -
fi gu red IP addresses.
The con fi gu ra ble pa ra me ters for the DHCP ser ver that you can se lect using the but ton »Ad van ced« al low you the op -
ti on of also using the DHCP ser ver in the exi sting LAN en vi ron ment.
Con fi gu ra ti on of the In ter net Ser vi ce pro vi ders (ISP)
An In ter net Ser vi ce Pro vi der pro vi des you with an »en tran ce por tal« to the In ter net. A dis tincti on is made bet ween
ISPs with whom you have a con tract (for ex am ple T-On li ne) and In ter net-by-call pro vi ders that bill you through
your pho ne bill (for ex am ple Free net).
The type of ac cess is in de pen dent of the ta riff char ges; this can be ba sed on ac tu al time, vo lu me or be a flat rate.
Dial-up con nec tions via ISDN (using PPP pro to col, with one or two ISDN B chan nels, i. e. at 64 kBit/s or 128 kBit/s).
The se ty pes of con nec tions re qui re ac cess data with the num ber to be di aled, the user name and pass word and, in
some ca ses, ot her in for ma ti on such as the IP ad dress of the name ser ver and any in for ma ti on about the data com -
pres si on me thod that is used (VJH).
In ter net-by-Call
The Pro fes sio nal Con fi gu ra tor of the PABX sys tem con tains a list of In ter net-by-call ISPs from which you can se lect a
pro vi der. The ad van ta ge here is that you can set up an In ter net con nec ti on im me di ate ly wit hout first ha ving to agree
to a con tract. (The re qui si te ac cess data are al rea dy con tai ned in the con fi gu ra ti on soft wa re for the In ter net-by-call
ISPs that are lis ted). You can chan ge this con fi gu ra ti on when you de ci de to con clu de a con tract with a pro vi der for
ex am ple (at pre sent re qui red for all DSL pro vi ders).
·
Fall back con fi gu ra ti on for se ve ral ISPs »In ter net al ways works«
Des crip ti on of the rou ter functions
In iti al Com mis sio ning and Mi ni mum Con fi gu ra ti on
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