What i am actually looking for is simple snmp scripts to run off the cmts we use a c9 network device which already shows a real time status table of all the cable modems on line and off line. Am looking for options to monitor within my cable modem router. Vulnerable versions may contain a default hardcoded simple network management protocol snmp community string when snmp is enabled on the device. Time warner approved modem motorola sb6121 twc modem. Struggling to get snmp working on netgear dgn router.
Use these mibs to manage and capture information from various cable television laboratories, inc. Also, as part of the switchs software, there is an online webbased help that describes all management related. Configure snmp access for the management server ngfw. Rfc 4639 cable device management information base for data. Our easytouse sb6121 surfboard extreme cable modem helps you deliver. Rfc 2669 docsis cable device mib cable device management infor. Npm regularly scanning your network for snmp devices, you can stay on top of your network and devices, espeically if you have a large network that is dynamic. Resetting and restoring the ez connect wireless cable modem gateway. After a few minutes, the 5505 stop passing web traffic. Disable any firewall or security software that may be running.
Monitoring cmts and docsis cable modems solutions experts. Smc modems serve the same purpose as a router when it comes to the lan. Full isp suite for major or minor system operators. The cmts detects a flapping cable modem from its cable upstream interface. The vulnerability exists due to insufficient validation of usersupplied requests using the snmp public community string in the affected software. The smc80wg wireless cable gateway combines a cable modem, fourport router and 802. I have my own modem, arris sb8200, thats less than a year old. The modem doesnt appear to drop connection because all the lights stay on but everything craps out for a few minutes. If you are trying to monitor the router from the computer described, you should first check that snmp is enabled on the device and set up correctly. Several cable modem models affected by snmp god mode flaw.
D3cm1604 includes software code developed by third. Also, as part of the switchs software, there is an online webbased help that describes all. On the wan side, the modem has a coaxial connection for connection to shaws cable. Snmp on cable modem comcast business support community. First, the mibs they support are a fixed list as required by the standards community that defined what cable modem management is like. The default community string is a result of inadvertently. Check that the nullmodem serial cable conforms to the pinout connections. If you allocate a static ip address to your computer and if the static ip address you allocate is somewhere in the dhcp range then you will have problems. The smcd3gn wireless cable modem gateway is the ideal allinone wired and wireless solution for the home or business environment. Cable modem operations and provisioning web based software. In particular, it defines a basic set of managed objects for simple network management protocol snmpbased management of data over cable service interface specification docsiscompliant cable modems and cable modem termination systems.
A vulnerability in the arris touchstone dg950a cable modem with software version 7. This new cable modem operates on twoway cable systems enabling higher performance and taking advantage of docsis 2. Smc is a registered trademark of smc networks, inc. Ip and mac address filtering and can be configured via webbased configuration utility or via snmp v. Smcd3gn wireless cable modem gateway user manual midco.
Smc networks releases smc8004bcm cable modem router. Its normally only once, but sometimes several times in this hour. Arris touchstone dg950a cable modem public snmp community. The smc d3cm1604 cable modem is an ideal allinone wired solution for. Had comcast replace the modem netgear cg3000dcr with a smc cable modem, which fixed the issue. My spouse uses internet connection on different devices, so i cant run a program on single pc and keep it on forever. I believe the netgear proxy arp was the reason the firewall would stop passing traffic after 1020 minutes. The device is a ciscolinksys cox cable modem router combo is currently using only modem functions. The smc modem blocks access to the internet for that computer. Proposed standard august 1999 docsis cable device mib cable device management information base for docsis compliant cable modems and cable modem termination systems status of this memo this document specifies an internet standards track protocol for the internet community, and requests discussion and. Smc is proud to provide a powerful, yet simple communication device for connecting your localarea network lan to the internet.
I need to do it so that web access usernamepassword of the modem is reset to default. Is there anyway i can configure my modem gateway to monitor my internet connection status 247. Learn about your cable modem and emta device compatibility. There is software available to monitor wan connections as well as some advanced firewalls. A vulnerability exists in certain cisco ios software release trains running on the cisco iad2400 series, 1900 series mobile wireless edge routers and cisco vg224 analog phone gateways. The simple network management protocol snmp is an applicationlayer protocol that facilitates the exchange of management information between network devices. Smc barricade plus wireless cabledsl broadband router specs. Cable modems contain a special snmp agent that implements a number of special extensions specifically for cable modems. The snmp event log page is a readonly page that shows the contents of the cable.
Smcd3gnrrr wireless cable modem gateway user manual. Chapter 5, or snmp management software such as smcs eliteview. I can log in from any computer to the actiontec 192. This memo defines a portion of the management information base mib for use with network management protocols in the internet community. Monitor internet connection status on routercable modem not. You can configure access for snmp software or stations to gather data about the smc appliance. This particular page contains a full list of all snmp mibs from cable television laboratories, inc.
Computers and office automation telecommunications industry computer network equipment industry product introduction modems equipment and supplies network hardware industry. Other product and company names are trademarks or registered. Smc is proud to provide you with a powerful, yet simple communication device for connecting your local area network lan to the internet. In this mode, the access point does not have a cable connection to the wired. Cisco cable spectrummib definitions begin imports notificationtype, moduleidentity, objecttype, unsigned32, integer32, gauge32, counter32 from snmpv2smi objectgroup, modulecompliance, notificationgroup from snmpv2conf truthvalue, macaddress, rowstatus, dateandtime, timestamp, storagetype, textualconvention from snmpv2tc. Using an snmp application, the system administrator can get a detailed view of the system and be instantly notified of important events, such as a node or disk failure. Then there are spots for management stations by ip and trap receivers again by ip. Many isps block users from accessing the modem with snmp. Approved by comcast xfinity, cox, charter spectrum, time warner cable, and more. There is an snmp settings page that is asking me for the version of snmp 1, 2, or 3. Docs cable devicemib definitions begin imports moduleidentity, objecttype, ipaddress, unsigned32, counter32, integer32, zerodotzero, mib2 from snmpv2smi rfc 2578 rowstatus, rowpointer, dateandtime, truthvalue, storagetype from snmpv2tc rfc 2579 inetaddresstype, inetaddress from inetaddressmib rfc 4001 objectgroup, modulecompliance from snmpv2conf rfc 2580. Smc barricade plus wireless cabledsl broadband router overview and full product specs on cnet. The smc is conected to the actiontec by ethernet cable.
This modem features ip and mac address filtering and can be configured via webbased configuration utility or via snmp v. Its only on the wan side that the functionality is different to a router. This script would have to retrieve that tables values and compare them with some thresholds ones and send alerts in case. This module allows snmp enumeration of the arris motorola surfboard sbg6580 series wifi cable modem gateway. The snmpwalk command essentially performs a whole series of getnexts automatically for you, and stops when it returns results that are no longer inside the range of the oid that you originally specified. Smc networks ez connect smc8004cm specifications pdf download. Page 1 broadband the smc ez connect cable modem smc8004cm is a stan dards based cable modem that provides highspeed internet access to both the residential and the small office and home office soho user. Am using motorola sbg6580 gateway cable modem with wireless router. Comcast business internet device compatibility comcast. View and download smc networks ez connect smc8004cm specifications online. If you have any additional questions, send me a private message with your full name and number listed on the account.
I need to be able to factory reset cable modems through snmp. Congratulations on your purchase of the smcd3gn wireless cable modem gateway. Dhcp authentication, snmp tracking, rrdtool graphing and monitoring, inventory tracking, ticketing system, property and customer management, etc. Jul 10, 20 when prtg would request snmp information, the requests would then be forwarded to the computer you specified and most likely this computer does not have snmp enabled for a bandwidth sensor.
The smc ez connect cable modem is cablelabs certified for docsis 1. The integrated access point complies with the ieee 802. I am working with motorola, arris, smc and other manufacturer cable modems. Apr 28, 2017 a severe security flaw in the implementation of the snmp protocol allows an attacker to take over at least 58 cable modem models, according to a team of researchers.
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