Kerio Tech KERIO WINROUTE FIREWALL 6 User Manual download pdf (Page 132)

Chapter 9 Bandwidth Limiter

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services if too much big data volumes are transferred). If they are lower, full line capacity is

often not employed.

Warning

For optimal conﬁguration, it is necessary to operate with real capacity of the line. This value

may diﬀer from the information provided by ISP. One method of how to ﬁnd out the real value

of the line capacity is to monitor traﬃc charts (see chapter 20.2) when you can be almost sure

that the line is fully employed.

At the bottom of the dialog box, download and upload speed limits for users with exceeded

traﬃc quota can be set. The bandwidth deﬁned will be shared by all users with their quota

exceeded. This implies that the total traﬃc volume of these users is limited by the bandwidth

value set here.

No optimal values are known for these speed limits. WinRoute administrators decide them-

selves what part of the bandwidth will be reserved for these users. It is recommended to set

the values so that activities of these users do not aﬀect other users and services.

Note: It is also possible to block any traﬃc for a particular users who exceed their quota.

The restriction described above are applied only if the Don’t block further traﬃc (Only limit

bandwidth...) action is set in conﬁguration of the particular user account. For details, see

chapter

15.1.

Advanced Options

Click on Advanced to deﬁne advanced Bandwidth Limiter parameters. These parameters ap-

ply only to large data volume transfers. They do not apply to users with exceeded quota

(bandwidth values set for these users are applied without exception).

Services

Certain services may seem to perform large data volume transfers, although, in fact, they

don’t. Internet telephony (Voice over IP — VoIP) is a typical example. It is possible to

deﬁne exceptions for such services so that the bandwidth limiter does not apply to them.

It may also be desired to apply bandwidth limiter only to certain network services (e.g.

when it is helpful to limit transfers via FTP and HTTP).

The Services tab enables deﬁnition of services to which bandwidth limiter will be applied:

• Apply to all services — the limits will be applied to all traﬃc between the local

network and the Internet.

• Apply to the selected services only — the limits will apply only to the selected

network services. Traﬃc performed by other services is not limited.

• Apply to all except the selected services — services speciﬁed in this section will be

excluded from the bandwidth limiter restrictions, whereas the limiter will apply

to any other services.

Click on Select services to open a dialog box where network services can be selected. Hold

the Ctrl or the Shift key to select multiple services. All services deﬁned in Conﬁguration

→ Deﬁnitions → Services are available (for details, refer to chapter sect-services"/>).

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Kerio Tech KERIO WINROUTE FIREWALL 6 User Manual Page 132