Default 3Com And Cisco Router Password, Restore Factory Settings

October 18, 2009 · Filed Under Hardware · Comment
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Forgotten your Cisco, Linksys, D-Link, NetGear or 3Com router’s username and password? There are two methods to recover the password and access the router, method number 1 involves resetting the password to factory settings, whereas method number 2 uses the master key to access the router.

Method 1 – Restore Factory Settings

Default Router Password And Restore Factory Settings

As shown in the image above, insert the tip of a pen or a paper clip into the ‘reset’ hole, push the button for 5 seconds or more, make sure the power is on for the router. For confirmation of resetting the router to default settings, you should be able to see all of the router’s LED flashes or blinks, on certain models the router would restart itself.

When you’re done, access the router with the default username and password as stated in your user manual.

Method 2 – Master Key / Password

Every router comes with a master key or password, these set of password enables you to access the router without restoring or losing the settings.

Vendor	Model	Protocol	Username	Password
3COM	COREBUILDER Rev. 7000/6000/3500/2500	TELNET	debug	synnet
3COM	COREBUILDER Rev. 7000/6000/3500/2500	TELNET	tech	tech
3COM	HIPERARC Rev. V4.1.X	TELNET	adm	(none)
3COM	LANPLEX Rev. 2500	TELNET	debug	synnet
3COM	LANPLEX Rev. 2500	TELNET	tech	tech
3COM	LINKSWITCH Rev. 2000/2700	TELNET	tech	tech
3COM	NETBUILDER	SNMP		ANYCOM
3COM	NETBUILDER	SNMP		ILMI
3COM	NETBUILDER	MULTI	admin	(none)
3COM	OFFICE CONNECT ISDN ROUTERS Rev. 5X0	TELNET	n/a	PASSWORD
3COM	SUPERSTACK II SWITCH Rev. 2200	TELNET	debug	synnet
3COM	SUPERSTACK II SWITCH Rev. 2700	TELNET	tech	tech
3COM	OFFICECONNECT 812 ADSL	MULTI	adminttd	adminttd
3COM	WIRELESS AP Rev. ANY	MULTI	admin	comcomcom
3COM	CELLPLEX Rev. 7000	TELNET	tech	tech
3COM	CELLPLEX Rev. 7000	TELNET	admin	admin
3COM	HIPERARC Rev. V4.1.X	TELNET	adm	(none)
3COM	LANPLEX Rev. 2500	TELNET	tech	(none)
3COM	CELLPLEX	HTTP	admin	synnet
3COM	SUPERSTACK II SWITCH Rev. 2700	TELNET	tech	tech
3COM	CELLPLEX Rev. 7000	TELNET	root	(none)
3COM	HIPERACT Rev. V4.1.X	TELNET	admin	(none)
3COM	CELLPLEX Rev. 7000	TELNET	tech	(none)
3COM	CELLPLEX Rev. 7000	TELNET	admin	admin
3COM	SUPERSTACK 3 Rev. 4XXX	MULTI	admin	(none)
3COM	SUPERSTACK 3 Rev. 4XXX	MULTI	monitor	monitor
3COM	SUPERSTACK 3 Rev. 4400-49XX	MULTI	manager	manager
3COM	NETBUILDER	HTTP	Root	(none)
3COM	3C16450	MULTI	admin	(none)
3COM	3C16406	MULTI	admin	(none)
3COM	OFFICE CONNECT ISDN ROUTERS Rev. 5X0	TELNET?	n/a	PASSWORD
3COM	COREBUILDER Rev. 7000/6000/3500/2500	TELNET	n/a	admin
3COM	COREBUILDER Rev. 7000/6000/3500/2500	TELNET	n/a	(none)
3COM	OFFICECONNECT ADSL WIRELESS 11G FIREWALL ROUTER Rev. 3CRWDR100-72	HTTP	(none)	admin
3COM	INTERNET FIREWALL Rev. 3C16770	HTTP	admin	password
3COM	SHARK FIN Rev. COMCAST-SUPPLIED	HTTP	User	Password
3COM	812	HTTP	Administrator	admin
3COM	CELLPLEX Rev. 7000	TELNET	operator	(none)
3COM	3COM SUPERSTACK 3 SWITCH 3300XM	MULTI	security	security
3COM	SUPERSTACK II Rev. 1100/3300	CONSOLE	3comcso	RIP000
3COM	NETBUILDER	SNMP	(none)	admin
3COM	CELLPLEX Rev. 7000	TELNET	tech	tech
3COM	SUPER	TELNET	admin	(none)
3COM	CELLPLEX Rev. 7000	MULTI	admin	admin
3COM	CELLPLEX Rev. 7000	TELNET	root	(none)
3COM	NETBUILDER	MULTI	admin	(none)
3COM	CELLPLEX Rev. 7000	TELNET	operator	(none)
3COM	OFFICECONNECT 812 ADSL Rev. 01.50-01	MULTI	admin	(none)
3COM	CELLPLEX	MULTI	admin	admin
3COM	HIPERACT Rev. V4.1.X	TELNET	admin	(none)
3COM	3C16405	MULTI	n/a	(none)
3COM	3C16405	CONSOLE	Administrator	(none)
3COM	SWITCH Rev. 3300XM	MULTI	admin	admin
3COM	SS III SWITCH Rev. 4XXX (4900 – SURE)	TELNET	recovery	recovery
3COM	OFFICECONNECT WIRELESS 11G CABLE/DSL GATEWAY	HTTP	(none)	admin
3COM	3C16405	MULTI	admin	(none)
3COM	OFFICECONNECT 812 ADSL Rev. 01.50-01	MULTI	admin	(none)
3COM	CELLPLEX	MULTI	n/a	(none)
3COM	CELLPLEX	MULTI	admin	admin
3COM	HIPERACT Rev. V4.1.X	TELNET	admin	(none)
3COM	3C16405	CONSOLE	Administrator	(none)
3COM	CELLPLEX Rev. 7000	TELNET	tech	(none)
3COM	SWITCH Rev. 3300XM	MULTI	admin	admin
3COM	SS III SWITCH Rev. 4XXX (4900 – SURE)	TELNET	recovery	recovery
3COM	OFFICECONNECT WIRELESS 11G CABLE/DSL GATEWAY	HTTP	(none)	admin
3COM	3CRADSL72 Rev. 1.2	MULTI	(none)	1234admin
3COM	CB9000 / 4007 Rev. 3	CONSOLE	Type User: FORCE	(none)
3COM	OFFICECONNECT	MULTI	n/a	(none)
3COM	SUPERSTACK II NETBUILDER Rev. 11.1	MULTI	n/a	(none)
3COM	OFFICECONNECT	MULTI	admin	(none)
3COM	OFFICE CONNECT Rev. 11G	MULTI	admin	(none)

Vendor	Model	Protocol	Username	Password
BELKIN	F5D6130	SNMP	(none)	MiniAP
BELKIN	F5D7150 Rev. FB	MULTI	n/a	admin
BELKIN	F5D8233-4	HTTP	(blank)	(blank)

Vendor	Model	Protocol	Username	Password
CISCO	CACHE ENGINE	CONSOLE	admin	diamond
CISCO	CONFIGMAKER		cmaker	cmaker
CISCO	CNR Rev. ALL	CNR GUI	admin	changeme
CISCO	NETRANGER/SECURE IDS	MULTI	netrangr	attack
CISCO	BBSM Rev. 5.0 AND 5.1	TELNET OR NAMED PIPES	bbsd-client	changeme2
CISCO	BBSD MSDE CLIENT Rev. 5.0 AND 5.1	TELNET OR NAMED PIPES	bbsd-client	NULL
CISCO	BBSM ADMINISTRATOR Rev. 5.0 AND 5.1	MULTI	Administrator	changeme
CISCO	NETRANGER/SECURE IDS Rev. 3.0(5)S17	MULTI	root	attack
CISCO	BBSM MSDE ADMINISTRATOR Rev. 5.0 AND 5.1	IP AND NAMED PIPES	sa	(none)
CISCO	CATALYST 4000/5000/6000 Rev. ALL	SNMP	(none)	public/ private/ secret
CISCO	PIX FIREWALL	TELNET	(none)	cisco
CISCO	VPN CONCENTRATOR 3000 SERIES Rev. 3	MULTI	admin	admin
CISCO	CONTENT ENGINE	TELNET	admin	default
CISCO	AP1200 Rev. IOS	MULTI	Cisco	Cisco
CISCO	CISCOWORKS 2000		guest	(none)
CISCO	CISCOWORKS 2000		admin	cisco
CISCO	CONFIGMAKER		cmaker	cmaker
CISCO	CISO AIRONET 1100 SERIES Rev. REV. 01	HTTP	(none)	Cisco
CISCO	AIRONET	MULTI	(none)	_Cisco
CISCO	AIRONET	MULTI	Cisco	Cisco
CISCO	HSE	MULTI	root	blender
CISCO	HSE	MULTI	hsa	hsadb
CISCO	WLSE	MULTI	root	blender
CISCO	WLSE	MULTI	wlse	wlsedb
CISCO	AIRONET 1200	HTTP	root	Cisco
CISCO	CVA 122	TELNET	admin	admin
CISCO	3600	TELNET	Administrator	admin
CISCO	1	TELNET	admin	admin
CISCO	2600	TELNET	Administrator	admin
CISCO	CISCO ATA-186 (VONAGE)	HTTP	(blank)	(blank)
CISCO	3700	TELNET	cisco	cisco