Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

For questions about network device management or network management in general. For instance how you configure and manage your network device or what you can do to secure it.

0
votes
2answers
27 views

Joining OOB for network and server equipment [closed]

Say I have some network equipment with management interfaces on a VLAN X. Now say I also have servers with double interfaces: one for production and one for management. Is it considered a good or bad ...
0
votes
1answer
77 views

Management Plane protection (MPP)

I'm new to networking. I was trying to understand What MPP is ? What kind of attacks is it preventing? How is it securing router from those attacks?
0
votes
1answer
106 views

Cannot ping or SSH into new Catalyst 2960-CX switch from the server VLAN (1)

I recently setup a Cisco Catalyst 2960-CX switch at work (I'm a SysAdmin at a SMB). Our workstations use VLAN 3, but our servers use VLAN 1. The management IP of the new switch (in VLAN 3) is 192.168....
1
vote
1answer
47 views

Pinging/ssh-ing into just trunk interface. How is it done? [closed]

I'm a junior network technician and I was tasked at work to do a switch upgrade. The most important part of this task is to set up SSH so we can at least get into the switch remotely configure once ...
0
votes
1answer
91 views

Nagios to monitor network in Cisco packet tracer

I would like to do a network management tool. I need to know how we can use Nagios XI to monitor the network devices that present in the Cisco packet tracer?? Thanks in advance
0
votes
1answer
28 views

How can different views onto same data model be defined in YANG?

RFC6020 contains the following statement "A NETCONF server may implement a number of modules, allowing multiple views of the same data" (my emphasis). I want to do exactly that, so that my NETCONF ...
4
votes
1answer
109 views

Architecture for management network in large data center?

I've read about data center network architectures - Fat-tree, Clos (or spine-leaf), DCell, BCube... None of these make any specific mention of the management network, which I expect would be out-of-...
3
votes
1answer
72 views

Does Network Device Management VLAN Need To be On An Access Port Or Can It Travel In A Trunk?

SO I am building a network of 6 switches. 1 primary switch would feed a trunk of 4 VLANs to 5 other switches directly (i.e. all coming from the primary switch). To keep the switches secure I want to ...
1
vote
3answers
379 views

Switches Can't Ping Each Other but PCs Can

I have an HP ProCurve 2910al running pretty much factory defaults on it at 192.168.1.50. There are 2 VLANS on it. Ports 1-12 are VLAN 1 (untagged) Ports 13-21 are VLAN 2 (Untagged) Port 22 is a ...
1
vote
1answer
363 views

Configure Out of Band management on MLNX-OS

I'm trying to setup Out Of Band management on a MLNX-OS based Mellanox switch It seems by default the mgmt0-1 interfaces are in the same VRF as all other interfaces, and I assume I have to create a ...
0
votes
1answer
58 views

Is there a point to have VLANs if each PC client can access them all?

At work we have a config where VLAN 1 is the main network and VLAN 2 is the phone system. The workstations connect automatically to VLAN 1 but can also access the control panels of each phone through ...
1
vote
1answer
40 views

In an agentless SNMP device, at what level does the SNMP agent run? In the Hardware? In the Operating system? Or somewhere else?

I know that there are devices that now support agentless SNMP configuration. However I believe that the SNMP agent application has to run somewhere. It has to be some code running somewhere stored on ...
10
votes
2answers
1k views

Can a switch that does NOT support VLAN capability be considered a managed switch if it has other features?

So the question is in the title. If a switch does not support Virtual Local Area Network capabilities can it still be considered a managed switch? What other features should it have to be considered ...
1
vote
1answer
29 views

Regarding Console and management connectivity basics

When we talk of console connection, i understand the following: Someone has a physical access to the device(say, a router)and has inserted a cable into the console port of the router/switch.The other ...
-1
votes
1answer
299 views

Configuration recovery on Extreme Networks Summit 200

I need to upgrade a small network I know nothing about. The only manageable switch in an Extreme Networks Summit 200, running ExtremeWare 7.3 (from 2005!). Of course, the default admin password has ...
12
votes
2answers
10k views

Difference between control plane, data plane and management plane?

I think I understand these concepts but I'm a little rusty. Can someone give a concise, easy-to-understand explanation of these concepts? The planes are logical concepts, correct? Is this a cisco only ...
0
votes
1answer
33 views

Switch Configuration Security — Signed Configurations

Assume a scenario where a network technician in an organization may remotely access network devices for routine maintenance, but should only be able to set up network configurations (e.g. VLAN ...
0
votes
2answers
172 views

Why management interface is always vlan interface and not just physical interface?

In Cisco switches/routers or any other vendor, why the management interface is always a vlan IP interface and why not just fa 0/1 or fa 0/2 ip interface. What's the reason behind vlan ip interface for ...
1
vote
3answers
72 views

Value of Terminal Server in a Data Center

I am working with a customer with atleast 2 private data centers. They have no terminal servers providing console access to their networking gear (switches and routers and firewalls). They have ...
2
votes
1answer
137 views

Regarding NETCONF

I am trying for basic operations on IOS-XR (Cisco) using Netconf.This includes initially setting up a netconf connection as below: ssh [hostname] -p 830 -s netconf As soon as, the connection is ...
0
votes
1answer
577 views

Manage access point in a different subnet

I am trying to setup a separate private network for a rented office in our building. I think i have succeeded in setting up two private LAN networks using port based VLAN's (192.168.10.0/24 and 192....
0
votes
1answer
857 views

Serial to RJ45 connection to Brocade FWS 648S 48port Switch

this is going to sound really dumb, but I've forgotten how to connect and manage a switch if the console interface is serial and the other end is an RJ45. The switch I'm working on is a Brocade FWS ...
0
votes
1answer
27 views

vlan management without assigning an interface to the vlan

I am using VLAN 40 to manage switches, but you have to assign a port to a VLAN for it to come up, is there a way to do this without wasting a port on the switch?
2
votes
2answers
387 views

Switch bandwidth management

How is bandwidth managed in an unmanaged network switch? Suppose that port 1 is connected to a a very busy server. If suddenly machines connected to ports 2, 3 and 4 decide to send a massive amount ...
0
votes
2answers
297 views

Cisco 2960-X IP Address

I want to access my 2960-X on my "server-network". I have configured a network 10.0.0.0/24 (VLAN60) on the Router, which is connected to the switch over a trunkport. Also VLAN 40, 80, 90 is ...
1
vote
3answers
99 views

Can I run an application on a managed switch?

If a layer 2 managed switch supports management functions and entails a "management plan" it must require an OS. If it is a typical network operating system, *nix based, does is have a full file ...
1
vote
1answer
85 views

sniffing through my company's lan [closed]

I'm in charge of the network in my company and i have to check the visited websites.We have a edgeMAX router (firmware version 1.8) with DPI and enabling netflow exporting.DPI (as is it implemented in ...
0
votes
2answers
816 views

CISCO ASA5512-X no Console Output

Situation: We bought new ASA5512-X. It worked everything okay. I had access over SSH on the ManagementPort which was directly connected to my PC. Then I realised there is a configuration already on ...
1
vote
2answers
247 views

Accessing Meraki Device using CMX - MSE API

How do I access a Meraki Device? Similar to the way in this tutorial. Cisco DevNet: CMX Mobility Services - Tutorials - MSE API Introduction Here is snapshot of the Public IP of my Meraki device I ...
0
votes
1answer
4k views

Disable port Netgear GS728TP

I have some Netgear GS728TP smart switches with some CCTV camera that run over them. Occasionally these camera's freeze and require the network plug pulling on them to reset (They are PoE) Some of ...
0
votes
0answers
196 views

Losing HTTPS and SNMP connections to NSA 2600

I have just replaced our Sonicwall NSA 220 with a Sonicwall NSA 2600. Initially everything seemed to be working fine. But after about 28hours I lost contact with the Firewall, only pings remained. My ...
0
votes
2answers
778 views

How to manage the Ethernet switch that is on WAN?

I never keep a managed switch outside the firewall. However, I have a situation where I have to do that. I am connecting two Sonicwall NSA220 in HA configuration. So I have to use a small Ethernet ...
1
vote
1answer
1k views

Dell PowerConnect 2848 MCLI Mode

I have the switch put in production already Dell Power Connect 2848. Now im trying to put some ip address and configurations. The problem is that when i connect it through the serial i have just the ...
1
vote
1answer
11k views

How do i factory reset a Allied Telesyn AT-9924t?

I have connected to the switch from my Win7 computer with the following equipment. (the blue cable isnt the exact one, but nearly the same) When i restart the switch while connected with Putty or ...
2
votes
3answers
3k views

DLink switch loses configuration on power off!

We just bought a DGS-1210-28P smart switch, it is my first experience with a business class switch, however I found a pretty weird behavior. The switch loses all of its configurations, even management ...
1
vote
2answers
329 views

Wrapping of high capacity (HC) counters

Am I correct that HC SNMP interface counters like ifHCInOctets/ifHCOutOctets or ifHCInUcastPkts/ifHCOutUcastPkts wrap after such a long period that applications using those counters do not need to ...
4
votes
1answer
11k views

How To Limit a VLAN to a Specific Bandwidth Quota

I have a Cisco Router 1900 series and I would like to limit the bandwidth used by a subnet/subinterface. This subnet/subinterface (192.168.10.*) uses most of the bandwidth making it useless for other ...
1
vote
5answers
485 views

What are the issues with having an unmanaged network? [closed]

I keep hearing that a network should be managed. What's an unmanaged network and what makes it risky?
0
votes
2answers
503 views

Best way to manage multiple Cisco Wireles Lan Controllers

What is the best way to manage multiple (~50) Cisco Wireless Lan Controllers (5508, 4402) from one application without having to loggin to each controller through the web browser? I know Cisco used to ...
4
votes
2answers
3k views

“transport input” for AUX port in Cisco routers

On physical layer AUX port works on asynchronous serial RS-232 protocol. However, one can specify various application layer protocols like telnet or SSH as allowed input protocols under AUX line ...
0
votes
1answer
1k views

Cant access remote management interface

The data link is completely okay. I can access MGMT IPs of routers (10.0.0.2 |10.0.0.4) from 3750 but not from PC. I can access 3750 MGMT IP (10.0.0.1) from PC . Any idea why ? Note : All management ...
1
vote
1answer
799 views

HP Procurve 5412zl Management unresponsive via IP when cpu high

I've got at least one problem of consistently high CPU on an HP 5412. It works fine while the management interface is unavailable, but i'm unable to login to SSH or the web. It seems to happen at ...
4
votes
1answer
2k views

SNMP IF-MIB stats export interval in Cisco IOS

I'm developing a SNMP Monitor for my company. I've done it before, and that is why I'm not sure why I have the behavior, and because I'm not a network engineer, I'm not a 100% sure where to go and ...
5
votes
2answers
6k views

SSH to Access Switch Management Console from other VLANs

The infrastructure I currently work on has 3 switches: One 3560X which is acting as a core switch and as a VTP Server with below characteristics: no aaa new-model system mtu routing 1500 ip routing ...
2
votes
2answers
390 views

Trunking MGMT Vlan Cisco x Dell

@edit: SOLVED!!! - See my answer below! how's going? Scenario: Trunk two Switches (Dell 6224 and Cisco SF300) for accessing them from the MGMT VLAN. Cisco ge2 -------TRUNK-------> Dell 1/g22 ...
4
votes
2answers
4k views

Management VLAN Configuration

how u doing? Just got a Cisco SF300-24 for studying switch configuration and I'm in doubt about the Management VLAN. In my conf, I made this VLANs: Vlan Name Ports ...
7
votes
1answer
218 views

Sarbanes Oxley for Network Engineers / Architects

Our organization has recently restructured IT and has separated network engineers into new roles such as architect, implementation engineer, and operational support engineer. There are concerns ...
3
votes
3answers
2k views

Static IP's vs DHCP from management standpoint

I was recently graced with a new job opportunity in a large higher ed NE department. This is my first job working with a large network of several thousand users. Throughout my education, I followed ...
2
votes
1answer
62 views

What could cause a previously working point to point to be accessible from only one side?

I have two sites that are connected using a pair of Motorola Canopy 5.7 Ghz backhaul units. They have been working for years without a problem but this morning we had a power outage for a few hours ...
2
votes
0answers
4k views

Change IP address in Cisco Prime infrastructure

Is it possible to change the Cisco Prime Infrastructure platform's IP address after PI has been installed ? This reference in the docs seems to indicate that you can. ncs/admin(config)# interface ...