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ネットワーク・ルーター GREAT ARBOR GAC-300のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。GREAT ARBOR GAC-300 4 ページ。 Wifi dial up router

Automatic Mode

Access t he l ast f ield i n t he D ial U p C onfiguration p age t o c onfigure t he r outer t o d ial u p o n d emand a t p ower u p I n t his m ode, w henever y our P C i s c onnected t o t he r outer ( via W iFi

or L AN) a nd y ou a ttempt t o a ccess t he I nternet, t he r outer w ill m ake t he d ial u p c onnection. E nter t he t ime a fter w hich t he r outer s hould a utomatically d isconnect t he c onnection i n

case o f n o a ctivity ( 180 s econds i s r ecommended). S etting t he t ime t o 0 c hanges t he r outer f rom A utomatic M ode t o F orced C onnect a t p ower-‐ u p. P ress S ave & A pply t o s ave t he

new c onfiguration. I n A utomatic m ode v arious p rograms o n y our l aptop ( Virus u pdate, W indows U pdate, e tc.) m ay a ttempt t o a ccess t he I nternet w ithout y our k nowledge a nd w ill

trigger a d ial u p c onnection. O nce y ou a re c onnected t o t he I nternet, y ou w ill n ot b e a ble t o r eceive a ny c alls o n y our p hone l ine. T he d ial u p c onnection c an b e d isconnected b y

disconnecting t he W iFi c onnection o n y our l aptop/device. T he d ial u p c onnection w ill b e a utomatically d ropped i n 3 m inutes o r l ess ( Automatic D isconnect P arameter i n t he D ial U p

Configuration w ebpage). A s a f urther p recaution, y ou c an u se a p ower s trip t o s witch t he p ower o ff t o t he r outer w hen i t i s n ot b eing u sed.

Optional: WiFi Security (Recommended)

Your W iFi c onnection c an o ptionally b e m ade s ecure i f y ou w ant t o b e s ure t hat n o o ne e lse a ccesses t he I nternet u sing y our d ial u p c onnection o r a ccesses y our P C o ver W iFi. C lick

the W ifi t ab ( located n ext t o t he I nterfaces t ab) u nder t he N etwork s ection. I n t he W ireless O verview s ection, t here a re c lickable o ptions o n t he e xtreme r ight. C lick t he " pencil"

image t o e dit t he W iFi c onfiguration ( Figure 5 ). C lick t he W ireless S ecurity t ab i n t he l ower s ection t o s et e ncryption. T he m ost s ecure f orm o f e ncryption i s W PA2-‐ P SK a nd t he k ey

can b e a m ixture o f c haracters a nd l etters. I f y our d evice d oes n ot s upport W PA2-‐ P SK, y ou c an s et t he e ncryption t o W EP. H owever, i n t he c ase o f W EP, t he k ey h as t o b e e xactly 1 0

characters. A fter m aking t he e ntries, c lick S ave & A pply.

Figure 5 WiFi Configuration Page

Optional: Router Password Change

F or i ncreased s ecurity, y ou c an c hange t he p assword f or t he r outer. S elect S ystem a nd t hen A dministration. P ut i n t he n ew p assword, c onfirm i t a nd c lick S ave & A pply.

Optional: Scheduled Dial Up

The r outer c an b e c onfigured t o m ake a d ial u p c onnection a t p articular t imes o f t he d ay, w eek, o r m onth a nd t he d uration o f t he c onnection c an a lso b e s pecified. I n o rder t o c reate

a s chedule, f irst s et t he T imeZone b y c licking o n t he S ystem T ab, s electing t he c ity i n t he s ame t ime z one a s y ou d esire a nd t hen c licking S ave & A pply. N ext, c lick o n t he S ervices T ab

and t hen o n S cheduled T asks. T ype i n t he s cheduled d ialup c ommand ( crontab) i n t he b ox ( see e xamples b elow) a nd t hen c lick S ubmit. A fter t hat t urn t he p ower o ff a nd t hen o n t o

the r outer t o e nable t he s chedule. N ote t hat t he r outer d oes n ot h ave a r eal-‐ t ime c lock a nd g ets s et w ith t he c orrect t ime o nly a fter i t c onnects t o t he I nternet a fter p ower o n. S o i f

power i s l ost t hen t he r outer w ill r eset t o t he f actory s et t ime a nd t he c onfigured s chedule w ill b e a ffected t ill t he r outer d ials u p f or t he f irst t ime.

A c rontab f ile h as f ive f ields f or s pecifying t he s chedule:

* * *

command to be executed

- - -

| | |

| | +----- day of week (0 - 6) (Sunday=0)

| +------- month (1 - 12)

+--------- day of

month (1 - 31)

+----------- hour (0 - 23)

+------------- min (0 - 59)

T o s tart t he s ession a t 1 :00 A M a nd e nd i t a t 1 :05 A M e very d ay e nter t he f ollowing 2 l ines i n t he S cheduled T asks b ox a nd S ubmit:

0 1 * * * ifup dialup

5 1 * * * ifdown dialup

To start the session at 5:30 AM every Sunday and end it 5 minutes later, use the following commands:

30 5 ? * 0 ifup dialup

35 5 ? * 0 ifdown dialup

Port Forwarding (Redirection)

Port F orwarding c an b e u sed t o r edirect i ncoming c onnections t o s ervers o n t he L AN s ide o f t he G AC r outer. P ort F orwarding i s u seful i f v ideo c ameras a nd o ther d evices o n t he L AN

need t o b e a ccessed f rom t he I nternet, s ay t hrough a s cheduled d ial u p c onnection. T ypically, a d ynamic D NS c lient o n t he c ontent s erver i s u sed t o a ssociate a h ostname w ith t he

current I P a ddress o f t he G AC r outer s ite. T he p ort f orwarding c onfiguration o n t he r outer t hen e nsures t hat t hose i ncoming c onnections a re r edirected t o t he c ontent s erver. T o

configure p ort f orwarding, c lick t he N etwork/Firewall t ab a nd t hen s elect t he P ort F orwards s ection o f t he f irewall p age. T he p ort f orwarding p age s hown i n F igure 6 w ill b e d isplayed.

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Figure 6 Port Forwarding (Traffic Redirection Page)

* m eans a ll v alues ( i.e a ll d ays o r a ll m onths, e tc.); ? m eans o mit t he s pecification

For s cheduled d ial u p, t he c ommand i s " ifup d ialup" t o s tart t he c onnection a nd " ifdown d ialup" t o

end t he c onnection.