Belkin F5D8633-4A User Manual

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Using the Web-Based Advanced User Interface

Configuring Internal Forwarding Settings

The Vi rtual S er vers fu nction will al lo w you t o route extern al (Inter net)
calls for ser vi ces suc h as a web ser ve r (port 80), F TP serv er (Port 21),
or oth er appl ic ations through your R ou ter to your in ternal ne twork.
Since your in te rnal co mputers are pr ot ected b y a fir ewall, co mputers
outsid e your ne twork ( over th e Inter ne t) cann ot get to them b ecause
they c annot b e “seen”. A list of com mo n appli cations has be en
provid ed in c as e you n eed to configu re the Vi rtual S erver f un ction
for a specifi c applica tion. I f your ap plicati on is n ot list ed , you w ill
need t o conta ct the ap plicati on vend or to fin d out w hich po rt settin gs
you ne ed.

Choosing an Application

Select your a pp licatio n from the dro p- down li st. Cli ck “Add ”. The
settin gs will b e trans ferred to the ne xt avai lable s pace in t he scre en.
Click “Apply Ch anges” to save the se tt ing for that a pplicat io n. To
remove an app li cation, select the nu mb er of t he row that yo u want to
remove then c li ck “Cle ar”.

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Manually Entering Settings into the Virtual Server

To man ually e nt er sett ings, e nter th e IP addr ess in the spa ce provid ed
for th e inter na l (serv er) mac hine, t he port(s ) requi red to pa ss (use a
comma between m ultiple ports) , selec t the por t type (TCP or U DP),
and cl ick “Ap pl y Chang es”. Yo u can o nl y pass one por t per i nt ernal I P
addres s. Open in g ports in you r firew al l can p ose a s ecurity r isk. Yo u
can en able an d disable settin gs very q uickly. It is recomme nd ed that
you di sable t he settin gs when you ar e not usi ng a sp ecific ap plicati on.

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Setting Client IP Filters

The Ro uter ca n be conf igured to rest ri ct acce ss to t he Inte rn et,
email, o r other n etwork service s at specif ic days a nd time s. Restri ction
can be set fo r a singl e compu ter, a ra nge of compute rs,
or mul tiple c om puters.

To res trict I nt ernet a ccess t o a sin gl e compu ter for exampl e, enter the
IP add ress of t he comp uter yo u wish to restri ct acce ss to i n the IP
fields (1). Nex t, ente r “80” in both t he port f ields (2). Selec t “Both ” (3).
Select “Block ” (4). Yo u can als o selec t “Alwa ys ” to bl ock acc ess all
of the time. Se lect th e day t o start o n top (5), the t ime to start o n top

(6), the day to end on t he bott om (7), a nd the time to s top (8) o n the

bottom . Selec t “Enable ” (9). Click “Apply Change s” . The c omputer at
the IP addres s you spe cified will no w be bloc ked fro m Inter ne t acces s
at the times yo u speci fied. N ote: Be s ure you have s elected t he
correc t time zo ne unde r “Util ities> Sy stem Se ttings> Time Z on e”.

(5) (6)

(1) (2)

(3)

(4) (7) (8) (9)

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Enabling the Demilitarized Zone (DMZ)

The DM Z featu re allows you to specif y one com puter o n your ne twork
to be placed ou tside o f the f irewall . This ma y be ne cessary i f the
firewa ll is c au sing pr oblems with an a pplicat ion suc h as a ga me or
video confere nc ing app licatio n. Use th is feat ure on a tempo ra ry basi s.
The co mputer in the DM Z is NO T prote ct ed from hacker a ttack s.

To put a comp ut er in t he DMZ, enter th e last digits of its IP addres s in
the IP field an d selec t “Enab le”. Cl ic k “Appl y Chang es” for t he chan ge
to tak e effec t. If you are us ing mul ti ple sta tic WAN IP add re sses,
it is possibl e to sele ct whic h WAN I P address the DM Z host wi ll be
direct ed to. Ty pe in t he WAN IP addr es s you w ish the DMZ ho st to
direct to, en te r the l ast two digits o f the I P addre ss of t he DMZ ho st
comput er, sel ec t “Enab le” and click “A pply Ch anges”.

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Using Dynamic DNS

The Dy namic D NS servic e allow s you t o alias a dynami c IP ad dr ess
to a s tatic h os t name in any of the ma ny doma ins Dyn DNS.org o ffers,
allowi ng your n etwork compute rs to b e more ea sily ac cessed fr om
variou s locat io ns on t he Inte rnet. D yn DNS.org provid es this s ervice, for
up to five ho st names, free t o the I nt ernet c ommunit y.

The Dy namic D NS
to mak e it ea sy to acc ess you r home PC and st ored fi les whi le you’re at
work. Using t he servic e can e nsure t ha t your host na me alwa ys points
to you r IP ad dr ess, no matter how of te n your ISP cha nges it . When yo ur
IP add ress ch an ges, yo ur frie nds and a ssociat es can always lo cate yo u
by vis iting y ou rname.d yndns.o rg inst ea d!

To reg ister f re e for y our Dyn amic DN S host na me, ple ase vis it

http:/ /www.dy nd ns.org.

Setting up the Router’s Dynamic DNS Update Client

You must register with DynDNS.org’ s free upda te service before us ing
thi s feature. Once you have your r egistration , follow the directi ons below.

1. Select Dy nDNS.or g f ro m the “DNS Ser vi ce” drop-d own box (1).

2. Enter you r D ynDNS.o rg user name in the “U ser Name” fie ld (2).

3. Enter you r D ynDNS.o rg passwor d i n t he “P assword ” f ield (3).

4. Enter the Dy nDNS.or g d omain name yo u s et up with DynDN S. org

in the “Doma in Name” fiel d (4).

5. Click “Up date Dynam ic DNS” to updat e y ou r IP addres s (5).

Whenever your IP address assigned by your ISP changes, the Router will
automatically update DynDNS.org’s servers with your new IP address. You
can also do this manually by clicking the “Update Dynamic DNS” button

SM

servi ce is i de al for a home website , file se rver, o r

(5).

(1)
(2)

(3)

(4)

(5)

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Blocking an ICMP Ping

Comput er hack er s use w hat is known a s “pingin g” to f ind pot en tial
victim s on th e Interne t. By p inging a specifi c IP ad dress a nd receiv ing a
respon se from t he IP a ddress, a hack er can de termine that s om ething of
intere st migh t be ther e. The Router ca n be se t up so it wil l not res pond
to an ICMP pi ng from t he outs ide. Th is height ens you r Route r’ s secur ity
level.

(1)

To turn off the ping response, select “Block ICMP Ping” (1) and click “Apply
Changes”. The Router will not respond to an ICMP ping.

Utilities

The “U tilitie s” screen lets y ou mana ge differ ent par ameters o f the R outer
and pe rform c er tain ad ministr ative f un ctions.

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Restarting the Router

Someti mes it ma y be ne cessary to res ta rt or r eboot t he Rout er if it
begins workin g imprope rly. Re startin g or rebo oting t he Rout er will
NOT de lete an y of your config uration s ettings .

Restarting the Router to Restore Normal Operation

1.

Cl ick the “Rest ar t

Router ” b utton.

2. The follo wing messa ge

will appe ar. Click “OK ”.

3. The follo wing messa ge

will appe ar. Restar ti ng
the Route r c an take
up to 60 second s. It is
import ant not to turn off
the power to th e R outer
during th e r estart.

4. A 60-seco nd countdo wn will appea r o n t he screen. Wh en th e

countd own reache s z er o, the Rout er wi ll be resta rt ed. The Route r
home page sh ould appea r a utomati ca lly. If not, t yp e i n t he
Router ’s address (d ef ault = 192. 16 8.2.1) int o t he navigat ion
bar of your bro wser.

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Restoring Factory Default Settings

Using this op ti on will restor e all o f the set tings i n the R ou ter to the
factor y (defa ul t) sett ings. I t is re co mmended that y ou back u p your
settin gs befo re you re store a ll of t he defaul ts.

1. Click the “Re st ore

Defaul ts” but to n.

2. The fo llowing m essage

will a ppear. Cl ick “OK ”.

3. The fo llowing m essage

will a ppear. Re storing
the de faults in cludes
restar ting th e Router.
It can take u p to 60
second s. It i s importa nt
not to turn t he power
to the Router o ff duri ng
the re start.

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4. A 60-seco nd countdo wn will appea r o n t he screen. Wh en th e

countd own reache s z er o, the Rout er ’s default s w ill be restor ed.
The Route r h ome page shou ld appear aut om aticall y. If it does
not, type in th e R outer’s ad dress (def au lt = 192.16 8. 2.1) into the
naviga tion bar of your br owser.

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Saving a Current Configuration

You ca n save yo ur curr ent con figurat io n by us ing thi s featu re . Savin g
your c onfigur at ion wil l allow you to r estore it late r if yo ur settin gs are
lost o r chang ed . It is recomm ended t ha t you b ack up your cu rr ent
config uration b efore p erformi ng a fi rm ware up date.

1. Click “Sa ve”. A window

called “F ile Downlo ad ”
will open . C lick “Save ”.

2. A window wil l o pen that

allows yo u t o s elect
the locat ion where
you want to sav e t he
config uration fi le . S elect
a locatio n. You can
name the fil e a nything
you want, or us e t he
defaul t n ame “Confi g” .
Be sure to name th e
file so you can lo cate
it yourse lf later. Whe n
you have sel ected the
locati on and name of
the file, cl ick “Save” .

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3. When the sav e i s

comple te, you will
see this win dow.
Click “Cl ose”.

4. The confi gu ration i s

now saved .

Restoring a Previous Configuration

This o ption w il l allow you to restor e a previ ously s aved co nf igurati on.

1. Click “Br owse”. A

window wi ll open that
allows yo u t o s elect
the locat ion of the
config uration fi le . A ll
config uration fi le s e nd
with a “.cfg ”. Locate the
config uration fi le yo u
want to rest ore and
double -click on it.

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2. You will be aske d i f y ou

want to cont inue.
Click “OK ”.

3. A reminde r w indow

will appe ar. It will
take up to 60 seco nds
for the conf igurati on
restor ation to comp le te.
Click “OK ”.

4. A 60-seco nd countdo wn will appea r o n t he screen. Wh en th e

countd own reache s z er o, the Rout er ’s configu ration wil l b e
restor ed. The Route r h ome page shou ld ap pear aut om aticall y. If
not, type in th e R outer’s ad dress (def au lt = 192.16 8. 2.1) into the
naviga tion bar of your br owser.

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Updating the Firmware

From t ime to ti me, Bel kin may releas e new ver sions o f the R ou ter’s
firmwa re. Fir mw are upd ates co ntain f ea ture im proveme nts and f ixes to
proble ms that m ay have existe d. When B elkin r eleases new fi rm ware,
you ca n downl oa d the f irmware from t he Belkin update websit e and
update your R ou ter’s f irmware to the l atest v ersion.

(1)

Checking for a New Version of Firmware

The “C heck Fi rm ware” (1) button allows you to i nstantl y check for a
new ve rsion o f firmwar e. When you cl ic k the b utton, a new b ro wser
window will a pp ear inf orming you tha t either no new firmwar e is
availa ble or th at ther e is a new ver si on avai lable. If a ne w version is
availa ble, yo u will ha ve the option to downlo ad it.

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Downloading a New Version of Firmware

If you click th e “Chec k Firmw are” bu tt on and a new v ersion of firmwa re is
availa ble, yo u will se e a scr een sim il ar to t he one below:

1. To download the new

version of firmware,
click “Download”.

A window will open that

allows you to select the
location where you want
to save the firmware file.
Select a location. You can
name the file anything you
want, or use the default
name. Be sure to locate the
file in a place where you
can locate it yourself later.
When you have selected
the location, click “Save”.

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2. When the sav e i s

comple te, you will see
the follo wing windo w.
Click “Cl ose”.

3. The downl oad of

the firmw are is
comple te. To update
the firmw are, follo w t he
next step s i n “ Updatin g
the Route r’s Firmwa re ”.

Updating the Router’s Firmware

1. In the “Firmw ar e

Update ” page, c lick
“Brows e”. A w in dow wil l
open t hat all ow s you t o
select the lo ca tion of
the fi rmware up date fi le.

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2. Browse to the f irmware

file y ou down lo aded.
Select the fi le by
double -clicki ng on the
file n ame.

The “U pdate F ir mware”

box wi ll now di splay
the lo cation an d name
of the firmwa re file
you ju st sele ct ed.
Click “Update ”.

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3. You will be ask ed if you

are sure you wa nt to
contin ue. Click “OK ”.

4. You will see on e m ore messag e. This messa ge tells you tha t

the Route r m ay not respon d f or as long as one minu te as the
firmwa re is loaded int o t he Router and th e R outer is rebo ot ed.
Click “OK ”.

5. A 60-seco nd countdo wn will appea r o n t he screen. Wh en th e

countd own reache s z er o, the Rout er fi rmware upd ate will be
comple te. The Route r h ome page shou ld ap pear aut om aticall y. If
not, type in th e R outer’s ad dress (def au lt = 192.16 8. 2.1) into the
naviga tion bar of your br owser.