Instruction/ maintenance manual of the product OfficeConnect 3CRWDR100B-72 3Com
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http://www.3com.com/ Part No. DU A100 A-72AAA01 Rev . 01 Publ ished Se ptemb er 2004 Of fi ceConnect ADSL W ire l ess 1 1g Fir ew all Route r User Gui d e 3CRWDR100A -72 3CRWDR100B-72 3CRWDR100U -72.
3C om Corporatio n 35 0 Campu s Drive, Mar lboro ugh, MA USA 0175 2-3064 Copy right © 20 04, 3C om C orpor ation. Al l right s reserved. N o pa rt of thi s docu mentat ion may be reproduced in any f .
C ONTEN TS A BOU T T HIS G UIDE Naming C onve ntion 7 Conventions 8 Feedback about this User Gui d e 8 Related Doc umentation 9 1 I NTR O DUC ING THE R OUTER Of ficeConnect A DSL W ireless 11g F ir ew.
4 R UNNIN G THE S ETUP W IZARD Accessing the Setup W izard 27 Setup W i zar d - Conn ection T ype 2 9 5 R OUT E R C ONF IGUR ATION Navigating T hr oug h the Router Confi guration Pages 39 Main Menu 39.
Upgrade 7 4 Admi n Passw ord 75 T ime and Ti me Zone 76 Status a nd Log s 77 ADSL Status 7 7 Log s 7 7 6 T ROUBLESHOO TING Basic C onnection Che cks 79 Browsing to t h e Router C on figuration Scr een.
C S AFETY I NFORMA TION D E ND U SER S OFTWA R E L ICENSE A G R EEMEN T E O BTAINI NG S U PPORT FOR YOUR P RODUCT Register Y our Product 99 Purc h ase V alue-Adde d S erv ic e s 99 T r oubl eshoot Onl.
A BOUT T HI S G UIDE This guid e descr ibes ho w to i nstall and co nf igure the OfficeC onne ct ADS L W ireless 1 1g Fi r ew all Router ( 3CR WD 100x-7 2).
8 A BO UT T HIS G UI D E Con ventions Ta b l e 1 and Ta b l e 2 list conventi o ns that ar e used thr oughout this guid e. F e edba ck abou t this User Gu ide Y our suggest ions ar e ver y impor tant t o us. They will h el p make our docum en tati on m ore usef ul to yo u.
Convent ions 9 Exampl e: ■ OfficeC onne ct ADS L W ireless 11 g Firewal l Rou ter U s er Gui de ■ Part Number DUA 100A-72AAA01 ■ Page 24 Do not u se this e- m ai l addr ess fo r te chnical support q u est ion s. For info rma tion a bout c onta ctin g T echni cal S upp ort, please r efer to Ap pe ndix C .
10 A BO UT T HIS G UI D E.
1 I NTR OD UCING THE R OUTE R W elcome to th e world of netwo rking with 3Com ® . I n the m ode r n business en vironme nt, co mm unica tion a n d shar ing in forma tion i s c rucia l.
12 C HAPTER 1: I NTRODUCING THE R OUTER Figure 1 Example Net work Without a Router When you use the Router in your network ( Fi gu r e 2 ), it bec omes you r co nnecti on to the In tern et.
Rou ter Ad vantage s 13 Rou ter Ad vant ages The adva n t ages of the Ro uter i n clu de: ■ Shared I nter net con necti on for both wired and wi reless c om pute rs ■ High sp ee d 802.
14 C HAPTER 1: I NTRODUCING THE R OUTER Min imu m System and Co mp onent Requirement s Y o ur Rou ter requires that t he c omput er(s) and c ompone n ts in you r net work b e co nfig ured w ith a t le.
Rear P anel 15 3 On line L ED Green If this LED is on, y ou r u ser name/p assw ord ha s been a uthe ntica te d successfully with your ISP . 4 Wir eless LAN (WLAN) St atus LED Green I f the LED is on it indicates that wir eless networking is enable d.
16 C HAPTER 1: I NTRODUCING THE R OUTER 7A D S L P o r t Us in g t he RJ 11 ca ble pro vi ded, you sh oul d co nne ct yo ur Ro ut er t o the telep ho ne so c ket vi a a spli tter . 8 Pow er Ad apter So cket On ly use t he p ower ada pter t hat is su pplie d wi th t his Rou ter .
2 H A R DWAR E I NSTALLAT ION Introduction Thi s ch apter will g uide yo u throu gh a b asic i nstalla tion of the Rou ter , in cl u d in g: ■ Connec ting th e Router to the Intern et. ■ Connec ting the Rou ter to you r n etwo rk. ■ Sett ing up yo ur co mpu ters fo r n etwo rking w ith t he Ro ut er .
18 C HAPTER 2: H ARDWARE I NSTALLATION When posit ioni ng you r R oute r , ensure: ■ It is ou t of direct sunl ight a nd aw ay fr o m sources of hea t. ■ Cabl ing is away f ro m power l ines, fluor escent l i ghti ng fi xture s, and sources of electr ical noise such a s ra dios, tr ansmit ters a nd broadba nd amplif iers.
Co nnecti ng the Ro uter 19 Figure 5 Connecting the Rout er 1 Run the provide d teleph one ca ble fr om the wa ll jack p rovidi ng ADSL servic e to th e AD SL port on your ADS L Ro uter . W hen i nser ting a n ADSL RJ-1 1 plug, be sure th e tab on t he plug cl icks into position to ensure tha t i t is pr o per ly seated .
20 C HAPTER 2: H ARDWARE I NSTALLATION Figure 6 Installing wi t h a spli tter.
Co nnecti ng the Ro uter 21 Figure 7 Installing wi t hout a spli tter Y o u h ave now co mpleted th e ha rdware instal lation of you r Rout er . Next you n eed to se t up your comp uters so that they ca n make us e of the Rou ter to c o mm uni ca t e w i th th e In te r n e t.
22 C HAPTER 2: H ARDWARE I NSTALLATION.
3 S E TTI NG U P Y OUR C OM PUTE RS The Ro ut er has the ab ility to dyna mical ly all ocat e net wor k addresse s to the compu ter s on you r networ k, us in g DHC P . Ho wever , you r com put ers need to be conf igu r ed corr ectly fo r thi s to t ake plac e.
24 C HAPTER 3: S ETTING U P Y OUR C O MPUTERS Figure 8 Local Ar ea Pr operti es Sc reen 6 Ensu re that the op tions Obtai n an IP Addres s automatic ally , an d Ob ta in DNS s erver ad dress auto matic all y a re both se lected as shown in Fi gure 9 .
Ob tain i ng an IP Add ress Aut o mati ca lly 25 Win dows XP 1 From th e W i ndow s Start menu , select Contro l Panel . 2 Click on Net work and Int ernet Connect ion s . 3 Click on the Network Connec tions icon. 4 Dou ble click on LAN or High Sp eed C onn ection icon.
26 C HAPTER 3: S ETTING U P Y OUR C O MPUTERS Dis abl ing PP PoE and P PTP Client So ft wa re I f you have PPPoE c lient softwar e insta lled on your c omputer , you will n ee d t o di sa ble it. T o do t his : 1 From th e W i ndow s Start menu , select Sett ings > Cont rol Panel .
4 R U NNING THE S ETUP W IZ ARD Ac cessin g the S etup Wi zar d The R out er se tup program i s Web- based, w hich mean s t hat i t is a cce ssed through yo ur Web browser (Netsca pe Na vig ator 4. 7 or hi ghe r , I nter n et Explorer 5.0 or highe r , or M ozi lla 1.
28 C HAPTER 4: R UNNING THE S ETUP W IZA RD Figure 12 Rout e r Login Scr een 5 When you hav e l o gged in ei the r: ■ The Statu s scre en will appea r ( Fi gur e 13 ). Select Setup Wiza rd fr om th e me nu . or ■ If y ou r Rou te r has not bee n c o nf igur ed bef or e, the W iz ar d w il l la un ch auto mati cally (r efer t o Figu re 14 ).
Acces sing t h e Set up Wizar d 29 Setup Wiz ard - Conn ecti on T ype Figure 14 Connection T ype Scre en The Co nnec ti on T ype scr een all o ws y ou to set u p the Rout er f or the ty p e of Inte rne t con nect ion you have . Befo re set ting up y our con necti on type, have your ac cou nt in form ati on from yo ur ISP ready .
30 C HAPTER 4: R UNNING THE S ETUP W IZA RD PP Po E Mode Figure 15 PPPoE Scr een T o setu p th e router fo r us e with a PPP over Et h ernet (PPPo E) connect ion, u se the fol low ing pr oc edur e: 1 Ente r your PPP ov er Ethernet u ser name in t he Username tex t box .
Acces sing t h e Set up Wizar d 31 Figure 16 W ireless Setti ngs Screen 7 Set th e W ir eles s Chan nel you want to use fr o m the Chan nel drop-down li st .
32 C HAPTER 4: R UNNING THE S ETUP W IZA RD 3 Re-t y pe y o ur PP P o ver A TM p asswo rd i n the Re type Pa sswo rd text bo x. 4 Ente r y ou r VPI and VCI in format ion in t h e VP I/VCI tex t b oxe s. 5 Sel ect the en c apsu lation typ e (LLC or V C M UX) in the Encapsulat ion drop-do wn l ist.
Acces sing t h e Set up Wizar d 33 Figure 19 Br i dged Mode Conf i guration Scr een 1 Ente r y ou r VPI and VCI in format ion in t h e VP I/VCI tex t b oxe s. 2 Sel ect the en c apsu lation typ e (LLC or V C M UX) in the E nca psulation drop-do wn l ist.
34 C HAPTER 4: R UNNING THE S ETUP W IZA RD Ro uti ng Mode ov er A TM (RFC 1483 Ro uted Mode ) T o set up the R outer for u se w ith an RFC 148 3 routed c onn ect ion: Figure 21 Rout i ng M ode Scr een 1 Ente r your Inte r net I P ad dr ess in the WAN I P text bo x.
Acces sing t h e Set up Wizar d 35 Figure 22 W ireless Setti ngs Screen 8 Set th e W ir eles s Chan nel you want to use fr o m the Chan nel drop-down li st .
36 C HAPTER 4: R UNNING THE S ETUP W IZA RD 4 Ente r the defau lt rout er in the De f a ul t G ate w a y tex t b ox. 5 Ente r the DNS addres s in th e DNS te xt bo x. 6 Ente r y ou r VPI and VCI in format ion in t h e VP I/VCI tex t b oxe s. 7 Sel ect the en c apsu lation typ e (LLC or V C M UX) in the Encapsulat ion drop-do wn l ist.
Acces sing t h e Set up Wizar d 37 Co nfi gura ti on Summa ry Figure 25 C onfigur ation S ummary Scre en When you comp lete the Setup Wizard , a con f igurat io n su mmary will displa y . Verify the co nfigur ation i nfor mat ion o f the R out er an d the n c lick Apply to sa ve y our se ttings.
38 C HAPTER 4: R UNNING THE S ETUP W IZA RD.
5 R OUTER C ON FIGU RATION Nav igating Thr o ugh the Router Con fi g uration Pa ge s Th i s ch ap te r d e sc ri be s al l th e sc ree n s a va i la bl e thro ugh th e Rou ter conf igurati o n pages, and is pr ovid ed as a ref erenc e.
40 C HAPTER 5: R OUTER C O N FI GU RA TI ON Stat us Figure 26 Stat us Scr een Ther e ar e two b utt o ns o n thi s scr een - Conne ct and Di sconne ct . T hese butt ons all ow y ou to m a nuall y conn ect or di sconne ct y our router fr om your I SP’ s service.
LAN Setup 41 The Route r will also pr ovide you wi th a list o f all cl ient computers conn ected to the net work. LAN Se ttings Figure 27 LAN Setti ngs Scre en The L A N Set tings s cre en is used to specify t he LAN IP addres s of y our Rou ter , a nd to co nfi gu re the D H CP se r ve r .
42 C HAPTER 5: R OUTER C O N FI GU RA TI ON DH CP C lie nts List The D HCP Clien ts List p ro vid es deta ils on t he device s that have r eceiv ed I P addr esses fr o m the Rou ter . The lis t is onl y creat ed when the Router is set up as a DHCP server .
Wire less S e tt in gs 43 Wir ele ss Setti ngs From t hese pag es yo u c an c onfigure t he se tting s for wireless co nne ction s. Figure 29 W ireless Setti ngs Screen This scree n all ows y ou to e n able or disa ble the w ireless sectio n of y our LAN.
44 C HAPTER 5: R OUTER C O N FI GU RA TI ON A fea ture o f many wir eless network ad ap ters is tha t a computer's SSID can be se t to ANY , w hich means i t look s ra ndom ly for any existing wir eless netwo rk. The av ailable net works ar e then di sp l ayed in a sit e survey , a nd your comp ut er can select a netwo rk.
Wire less S e tt in gs 45 Di sabled In thi s mo de, wireless t ransmi ssions wil l not be enc rypte d, an d will b e visibl e to e veryon e. How ev er , when se tting up o r de bug ging wirel ess net works it is of ten use ful to use t his se curity mode .
46 C HAPTER 5: R OUTER C O N FI GU RA TI ON 128 -bit WEP Figure 33 128- bi t WEP Scr een WEP is t he basic mechani sm to t ransmit your d ata secu rely o ver the wireless net wor k. M atchi ng en crypt ion ke ys mu st b e setup on you r Rou ter and w ir ele ss clien t de vices t o u se W EP .
Wire less S e tt in gs 47 64-b it WEP Figure 34 64- bi t WEP Scr een WEP is t he basic mechani sm to t ransmit your d ata secu rely o ver the wireless net wor k. M atching e n crypti on key s mu st be setup on you r Rou ter and w ir ele ss clien t de vices t o u se W EP .
48 C HAPTER 5: R OUTER C O N FI GU RA TI ON WP A (w ith R ADIU S Se rver) Figure 35 W P A (wit h RADIUS Server) S c r een WP A (W iFi Pr otected Access) pro vides dynamic key changes and co n sti t ut es th e b es t s ec ur it y s ol uti o n.
Wire less S e tt in gs 49 W ir ele ss WD S Settin gs Figure 36 W irele s s WDS S ettings Scr een The Route r supports WDS (W i reless Dist ribution Sy st em). WDS enables one o r more A cce ss Point s to rebroadc as t r ec eived signal s to e xtend ran ge and reach, t hou gh thi s ca n affect t he o verall through put of d ata.
50 C HAPTER 5: R OUTER C O N FI GU RA TI ON In ternet Sett ings From th ese pages y ou c an co nf igure th e settin gs for you r DS L co nnec tion . Conn ecti on T ype Figure 37 C onnect ion T ype Scre en The C onne ction T ype scree n is use d to c onfi gure the pa ram eter s for y our DSL con n ecti o n.
Inte rn et S etti ng s 51 PPP oE Figure 38 PPPoE Set tings Scr een 1 Ente r the User Name assi gne d to yo u b y y our IS P in th e User Name fiel d. 2 Enter t he P assword assi gne d to y ou b y your ISP in the Passwor d fi eld. Re- enter yo ur passw ord in th e Re type P asswor d fiel d .
52 C HAPTER 5: R OUTER C O N FI GU RA TI ON 8 If you w an t your R oute r to au tom atical ly d isconn ect from the Inter ne t auto mati c al ly after a perio d of inac ti vity , spec ify a time in the Idle Ti m e (Mi nute s) fi eld. Ente r a valu e of 0 to d isab le this time o ut.
Inte rn et S etti ng s 53 6 I f you wa n t you r R outer to connec t to th e Int er net every ti m e a PC needs to acce ss i t , chec k the Dial on Demand ch ec kbox . If this b ox is n ot ch ecke d, then you w ill hav e to manu ally con nect a nd discon nect using the bu ttons on the Home Sc reen (see p age 39 ).
54 C HAPTER 5: R OUTER C O N FI GU RA TI ON Ro uti ng Mode ov er A TM (RFC 1483 Ro uted Mode ) Figure 41 Rout i ng M ode over A TM Scr een 1 Ente r the IP add ress, Su bnet Mas k and Defau lt Gateway in for mation provid ed by yo ur ISP i nto t he IP address , Subne t Ma sk an d ISP D efa ult Gat ew ay field s.
Inte rn et S etti ng s 55 Dy nam ic/Fix ed IP i n 1 483 B rid ge Mo d e (For M ult iple PC s) Figure 42 D ynamic /Fixed IP for Bridge Mode S creen 1 Check t he Get WAN IP B y DC HP fi eld if your I SP allocates IP addr esses using DHCP . 2 Ente r your Inte r net I P ad dr ess i n the WAN I P t ext bo x.
56 C HAPTER 5: R OUTER C O N FI GU RA TI ON If your ISP provid ed yo u with spec ific DNS ad dresses to use, ent er them i nto the appr opriate fiel ds on this s cre en and cli c k App ly . Ma ny ISP s do not requi re yo u to e nte r this i nfor mat ion in to t he Ro ute r .
Rou ting 57 Rou ti n g From th ese pages y ou can c onfi gure routing param e ters. Y our Ro uter supp orts the foll owing ro utin g func tion ality: ■ Stati c Routing ■ R IP ( Rou ti ng I nfo rm .
58 C HAPTER 5: R OUTER C O N FI GU RA TI ON RIP Para meters F igure 46 RIP Param eter Scr een Y o u c an set up R IP in depend en tly on b ot h LA N and W A N interfac es. 1 Sel ect the R IP M ode Enable rad io bu tton. 2 Sel ect th e appr o pri ate radi o button to enable or disa ble Auto Summary .
Fire wall 59 7 In t h e Authen ticati o n Co de fiel d , en ter the passwo rd that is r eq uir ed i f th e Passw ord op tion has bee n sele cted. 8 Cli ck Apply . Ro uti ng T a b le The Ro ut ing T abl e screen d ispl ays det ails for the de fault rou ting use d b y yo ur Router and an y routing crea ted using Sta tic Routing or RIP .
60 C HAPTER 5: R OUTER C O N FI GU RA TI ON your networ k completely v uln erabl e to hacker att ac ks, but 3Com re commends that you tur n leave th e fir ewall enabled when ever possib le. 1 Enable or Disable the Fi rewall a s required by sel ect ing the appro priat e rad io butt on.
Fire wall 61 I f your appl icatio n is not liste d, you will need to chec k with the appli catio n v endor t o det erm ine which por ts ne ed to b e con figured .
62 C HAPTER 5: R OUTER C O N FI GU RA TI ON T o en t er s ett in gs : 1 Cli ck Add , or Edit if you want to ed i t an exi sting r ecord. 2 Ente r the IP addr ess in th e sp a ce pr ovi ded for t he inte r nal machi n e. 3 Ent er the port type (T C P , U DP , or bo th TC P and U D P).
Fire wall 63 T o con tro l acce ss to spec ifi c Inte r net ser v i c es: 1 Click on Add PC. A scr een si m i lar to that shown below wil l app ea r Figure 52 Add PC Scree n 2 Ent er a desc ripti on for t he f ilter y ou are def ining i n the Client PC Descript ion field .
64 C HAPTER 5: R OUTER C O N FI GU RA TI ON URL Bloc king Figure 53 URL Blocking Scr een T o c onfigur e the UR L Block ing feat u re , use the ta b le on t h e URL Blocki n g page t o sp ecify th e w ebsites ( ww w .so mes ite.com ) a nd/or keyw ords you wa nt to filter on you r netwo rk.
Fire wall 65 Sc he du le Ru l e Figure 54 Schedule Rule S creen The Route r c a n be configur ed to r estrict ac c ess t o the Int er net, e-mai l or other net work servic es at speci fic days an d times.
66 C HAPTER 5: R OUTER C O N FI GU RA TI ON 2 Ente r a name and commen t for the sche dule r ule in the Na me a nd Com m ent field s . 3 Spec ify th e schedu le rules f or the r equir ed days and t imes - note th at all times shou ld be i n 24 ho ur form at.
Fire wall 67 ■ Cop y the M AC address by selecting the name o f the comp ute r from th e DHCP C l ients List , and then in th e MAC Add ress Filtering List click Copy T o .
68 C HAPTER 5: R OUTER C O N FI GU RA TI ON Adva nc ed From th e Ad va nced screen, y ou can c onf igure: ■ NA T (Network Ad dre ss T ranslation) ■ Univ ersal P lug and Play ■ W AN P ing Bloc ki.
Fire wall 69 Univ ersa l Plu g an d Pla y Univ ersal Plug and Pl ay i s a tec h nolo gy that o ffe rs seamless operati on of v oic e m ess ag in g, v id eo me ss ag in g, g ame s, a nd othe r a ppl ica ti on s t hat ar e U niv ersa l Plug and Play compli an t.
70 C HAPTER 5: R OUTER C O N FI GU RA TI ON DD NS Th e R oute r p rov id es a li st of dy na mic D NS pr ov ide rs f or you t o c hoo se fr om . Dynamic Doma i n Name Ser ver (DDNS) enables you to map a stati c domain name to a dynamic IP addr ess. The Router support s t wo DDNS pr oviders, TZO .
SNMP 71 3 In t h e P asswor d te xt box , ent er the a c count passw ord. 4 Cli ck Apply to make this ser v ice ac tive. SN MP S NM P (Sim ple Ne tw ork Man ageme nt Prot ocol) allows remot e manag em ent of yo ur rout er by a PC t hat ha s an SN MP ma nagem e nt agent insta lled.
72 C HAPTER 5: R OUTER C O N FI GU RA TI ON SNM P T rap Figure 61 SNMP T r ap Scr een Y o u c an co nfig ure your r o uter t o send status m essa ges t o the SNM P manage m ent agen t if a pr oblem o ccur s on th e network.
Sy stem T ools 73 Sy stem T o ols Thes e page s let s yo u man age different pa rame ters of the router an d per form certai n adm inistr ative f unc tions. Rest art Rou ter Figure 62 Restart Router Scr een Som etimes it may be nec essa ry to re sta rt (or r eboot) the Router .
74 C HAPTER 5: R OUTER C O N FI GU RA TI ON Ba ck up /R est ore Settin gs Figure 64 Backup/Restor e Settings Sc reen Y o u c an sa ve y our c urrent c onfi gura tion by cl ickin g Save in Backup Setti ngs . Saving your conf igurat io n wi ll allow you t o r estore it later if your setti ngs are lost or ch an ged.
Sy stem T ools 75 Pl ease do wnload t h e fir m war e file t o your PC first, and th en c lick Br owse an d s ele c t th e fi r mw a re f ile . C l ic k Up grade to uplo ad the firm ware to the Rou ter . Admin P asswor d F igure 66 A dm i n Pa ss w o rd S cre en The Ro ut er ship s with a defaul t passw ord of admin .
76 C HAPTER 5: R OUTER C O N FI GU RA TI ON Ti me an d Tim e Zone F igure 67 T ime and Time Z one scre en The Rout er keeps ti m e by connecti n g to a Simple Netwo rk Time Pr otocol (SNTP) server . This al lows the Router to syn chro n ize t h e system clock to the I n ternet.
Stat us and Logs 77 Status a nd Lo gs Y ou can use th e Status Scr een to view ver sion numbers f o r your r ou t er’ s softwa re and hardwa re a nd che ck the sta tus of co nnec tions to W A N, LAN and W LAN inter fac es.
78 C HAPTER 5: R OUTER C O N FI GU RA TI ON ■ Cli ck Cle ar to clear the lo g (n ote th at all curr ent entri es will b e erased). ■ Cli ck Save to save the log to disk in a t ext file . Wh en prom pte d for a l ocati o n to s ave the fil e t o, spec ify a filen am e and lo c at ion, and t hen clic k OK .
6 T R OUBLE SHOOTI NG Basic Con nection Check s ■ Check that th e Ro ute r is connect ed to yo u r compu ters and to the telepho ne line , and that a ll th e eq uipm ent is pow ered on . Ch eck that the LAN Stat u s a nd SYNC LEDs o n the R o ute r are il lum i n ated, and that any corres pondi ng L EDs on th e NIC are also illum inated.
80 C HAPTER 6: T ROUBLESHOOTING ■ If you c anno t b rowse to the Ro uter , us e the wini pcfg utility in W indo w s 95 /98/M E to verif y tha t yo ur com pute r has rece ived the co rrect addres s infor mat ion f r o m the R outer . From the St a r t m enu, ch oose Ru n and th en enter win ipcfg .
Wirel ess Ne t wor king 81 4 Pr ess and hold the Reset butto n o n th e rear pa n el (s ee “Rear Pa nel” on page 1 5 ) for 5 sec onds. 5 The Route r will r estart, an d when th e start- up sequence has c o mplet ed , browse t o: ht tp:/ /1 92. 16 8.
82 C HAPTER 6: T ROUBLESHOOTING Add itional ly c onsider mo ving the wirel ess com pute r cl oser to the Rou ter to conf irm tha t t he bu ilding struc tur e o r fitt ings are no t adv ersel y aff ecting t he connecti vity .
Recove ring from C or rupt ed Softwar e 83 Rec ove ring fr om Corrupt ed So ftw ar e I f the syst em soft ware h as b e c ome co rrupted, the Router will e nter a “r ecovery” stat e; D HCP is enab led, and the LAN IP add ress is set t o 1 92. 168 .
84 C HAPTER 6: T ROUBLESHOOTING Fr equen tly As ked Question s How do I res et the R outer to Fac tor y Def ault s? See “F orgo tt en P ass wor d an d Res e t to Fac to ry D efa ult s” on page 8 0 . How ma ny comp ute rs on th e LAN do es the Route r su pport? A m aximum of 253 c omp uters on th e LAN a r e su ppo rte d.
A IP A DD R E SSI NG Th e Int er n e t Pr otoc ol Sui te The Inte r net pr otoc ol suite co nsists of a well -defined se t of co mmuni catio ns protoc ols and seve ral sta ndard ap plica tion protoc ols.
86 A PPENDIX A: I P A DDRESSING Fo r you r n etw o rk to w or k c or rec tl y , al l de vic es on t he n e tw or k m us t h av e: ■ The sam e sub-networ k addre ss . ■ The sam e su bn et mask. The onl y valu e that will b e d iffer ent is t he specifi c host devic e number .
Ho w does a Device Obt ain an IP Addres s and Sub net Mask? 87 This ty pe o f IP Add ress ope ra tes on a sub net ma sk of ‘255.2 55.0 .0’. See Ta b l e 4 for an exa m ple a bout h ow a net work (on ly four co mputer s re p re sen ted) and a R out er might be conf igured.
88 A PPENDIX A: I P A DDRESSING an IP address at random from t he indu stry sta ndard subn et o f 169 .254.x. x (wi th a subne t ma sk of 255.2 55.0 .0). If tw o d evices a lloca te thems elves th e same addr ess, t h e conf lict is dete cted and one of th e devices allocates itself a ne w add r ess.
B T ECHNI CAL S PECIFICATI ONS This secti o n list s the technical spec if i c atio ns for the O ff iceCo nnect A DSL W ireless 11g F irewall Router . Off ice Conn ect ADS L Wi r ele ss 11 g Firew a l.
90 A PPENDIX B: T ECHNICAL S PECIFICATIO NS Ma ximum cli ent s: 128 O /P P owe r 16d Bm Op erating T e m peratu r e 0 °C to 40 °C (32 °F to 105 °F ) Pow er 8 V A , 25 BT hU/ hr Hum id ity 0% t o 90 % (non -cond ensing) hum idity Di me ns io ns ■ W idt h = 220 mm (8.
Offic eConnect ADSL W ir el e ss 11 g Firew all Ro uter 91 Sy s te m Requir emen ts Opera ti n g Sys tems The Ro uter w ill suppo rt t he fol lowin g Oper ating Sy stem s: ■ W indo ws 95/98 ■ W indo ws NT 4 .0 ■ W indo ws ME ■ W indo ws 2000 ■ W indo ws XP ■ Ma c OS 8.
92 A PPENDIX B: T ECHNICAL S PECIFICATIO NS.
C S AFETY I N F ORMA TION Impor tant Safe ty In formati on WARN ING : Warn ings c onta in direc tion s tha t you must f ollow for your person al safety .
94 A PPENDIX C: S AFETY I NF ORM ATION WA RNING: RJ-4 5 po rts. These are shiel ded RJ-45 dat a socket s. They cann ot be u sed as teleph one sock ets.
95 VORSICH T : Es sin d kein e von dem Be nutzer z u ersetz ende oder z u wart ende T ei le in de m Ger ät vor handen . Wen n Sie ein P robl em m it dem Rou ter habe n, das n icht mi ttels de r Fehl er analyse in die ser Anleit un g behob en werden kann, set zen Sie si c h mit Ihrem Liefer an ten in V erbind ung .
96 A PPENDIX C: S AFETY I NF ORM ATION co ndition s ne so nt mai ntenue s q ue si l'é quipem ent auqu el il e st r acc or dé f onc ti onn e da ns l es m ême s co ndi ti ons. A VERTISSE M ENT : Il n’y a pa s de parti es r em place ables par les uti lisateurs ou entr etenues par les utili sateurs à l ’intéri eur du moyeu.
D E ND U SER S OFTWAR E L I CEN SE A GR E EM EN T 3Com Cor porati on E ND USER SOF TW ARE LI C E NSE AG REEM ENT YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS B EFO R E DOWNLOADING, INS.
98 A PPENDIX D: E ND U SER S OFTWARE L ICENSE A GREEMENT and de veloped solely at privat e expe nse. Th e Softwa re is de livered as "Com mercial Comp uter Softw are" as defined in DF ARS 252 .227- 701 4 (June 1995 ) or as a com merci al item as defined in FAR 2.
E O BT AI NIN G S UP PORT FOR YO UR P R ODUCT Registe r Y ou r Product W ar ran ty and ot her servi ce benef its start from t he date of purchase , so it is im port ant to regist er your product qu ickly to ensure y ou g et full use of th e wa rr a nty a nd ot he r ser vi c e be n ef it s a va i l ab le to y ou .
10 0 A PPENDIX E: O B TAINING S UPPORT FOR YOU R P RODUCT T roubles hoot Online Y o u wi ll find supp ort tool s post ed on th e 3Co m we b s ite at ht tp:/ /w ww. 3c om .com / 3Co m Know ledg ebas e h elps you t r o ubl esho ot 3C om product s. Th is qu ery-b ased in teractiv e tool is locat ed at ht tp:/ /k now le dg ebas e.
Contac t Us 101 T o send a product directl y to 3 Com for repai r , you mu st first ob tai n a re tur n auth oriza tion n umb er (R MA ). Prod ucts se nt t o 3C om, w itho ut autho rizatio n number s clea rly marked on t he outsi d e o f th e pack age, wi ll be retu rned to the se nder unope ned, at the sen der’ s expen se.
10 2 A PPENDIX E: O B TAINING S UPPORT FOR YOU R P RODUCT Austria Be lgiu m Denmark Finl and France Germany Hungary Ir eland Is ra el It al y 01 795 6 71 24 070 700 77 0 701 0 7289 010 80 2783 082 5 8.
G LOSSARY 8 02.11b The IEEE spec ifica tion for wir eless Eth ern e t which all o ws sp eeds of up to 11 Mbps. T he stand ar d provide s for 1 , 2, 5.5 a nd 11 M bp s dat a rat es. The rate s will switch au toma ticall y depen ding on r ange and envi ronme nt.
10 4 G LOSSARY comm on speed. Th e or d e r of pr efer en ce ( b e st fi rst) is: 1 0 0BA SE-TX fu ll dup lex, 10 0BA SE-T X ha lf dupl ex, 10BA SE-T full d uplex, and 1 0BA SE- T half d uple x. Aut o-ne gotia tion is define d in the IEEE 8 02.3 stan dard for Ethe r net and is an op eratio n tha t takes pla c e in a few mill isecond s.
G LOSSARY 105 host c omp uters and the ir respective do main n ame s and IP ad dre ss es, so tha t wh en a do ma in nam e is reque sted (as i n typ ing “3 com .
10 6 G LOSSARY IEEE I nstitute of El ectri cal a n d Electr onics En gineer s. This Ameri c an orga nizat ion was fou nded in 196 3 a nd sets standa rds for comp uters a nd co mmu nica tio ns. IE TF Inter ne t Engi neering T a sk Fo r ce . An organi zat ion respon sible for p r ovi di ng e ngi nee rin g so lut ion s fo r T CP/ IP net wor ks .
G LOSSARY 107 MAC Media Access Contr ol. A proto col s pecified by the IEEE f or determinin g whic h devic es have ac cess to a netwo rk at any one time . MAC Address Media Access Con tr ol Ad dress. Al so ca ll ed t he ha r dwa re or ph ys ica l address.
10 8 G LOSSARY Rou ter A dev ice tha t acts a s a cent ral hu b by co nnec ting to e ach com put er's netwo rk int erfac e c ar d and managing th e data traf fic bet ween the lo c al netwo rk and th e Internet. Se rv er A computer in a net work that is s har ed by multi p l e en d stat ions.
G LOSSARY 109 univ ersa l pl ug and pla y Univ ersal plu g and play i s a syste m which allows compati ble appli cations to rea d so m e of th ei r s ett i ng s f ro m th e Ro u te r . T hi s al lo w s th em t o autom atical ly conf igure som e, or all, o f th eir s ettin g s and need less us er co nfigu ratio n.
11 0 G LOSSARY WLA N W i re l ess L ocal A rea Net wor k. A WL AN is a g r o up o f com pute rs an d dev ices connect ed together by wir eless i n a rel atively small ar ea ( such as a hou se or off ice). WP A Wi-Fi Pr otected A cc ess. A dynami cally changing encr ypti on m ech anism fo r w ire les s n etw o rk i ng.
R EGUL AT OR Y N OTICES FOR TH E O FF I C E C ONNE CT ADSL W IR E LES S 11 G F IR E WALL R OUTE R Channe ls Use of the OfficeCon ne ct ADS L W ireless 1 1g Fi r ew al l Rou ter is only aut horize d for th e ch anne ls a pproved b y e ach cou ntry .
11 2 Howeve r , ther e is no guarant ee that int erfer ence will n ot occur in a partic u lar inst allation. In formati on t o the Us er If this equi pm ent do e s cause int erfe re n ce to rad io or .
113 ■ Feder al Com munic ation s Com missi on 47 C FR P art 1 5, su bpar t B 15. 107 (a )Cla ss B C ondu cted L im its 15. 109 (a )Class B R a diated E mission s Lim its ■ 15.
11 4.
I NDEX Numbers 12 8-bit WEP 46 12 8-bit WEP Sc reen 46 14 83 Brid ge Mode 55 64 -bit W EP Scr een 47 A Acces s Contr ol Sc reen 62 Add PC Scr een 63 Add Schedul e Rule S cree n 65 Add res ses IP 85 Ad.
11 6 I NDEX co nfigur ing 56 MAC Addr ess Filter i ng Screen 66 mode 30 N NA T (N etwor k Addr ess T ransl ation ) 68 NA T - T ( NA T T r av e rs a l) 68 Netw ork ad dres ses 85 Netw orkin g wir eless.
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3Com Corpora tion, Corporate Headquarters, 350 Campus Drive, Ma rlborough, MA USA 01752-30 64 T o le arn m or e about 3Com pr oducts a nd services, visit our W orld Wide Web s ite at www.3com.com All specifications are subject to change without notice.
An important point after buying a device 3Com OfficeConnect 3CRWDR100B-72 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com OfficeConnect 3CRWDR100B-72 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com OfficeConnect 3CRWDR100B-72 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com OfficeConnect 3CRWDR100B-72 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com OfficeConnect 3CRWDR100B-72 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com OfficeConnect 3CRWDR100B-72, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com OfficeConnect 3CRWDR100B-72.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com OfficeConnect 3CRWDR100B-72. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com OfficeConnect 3CRWDR100B-72 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
