Network Management

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Solutions

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Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.

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I'm attempting to connect some switches in my IDF locations to my MDF switch via SFP.

The fiber connecting each IDF to the MDF is multimode, OM3. It connects to a LANscape housing in each location. From the housing, I'm trying to connect a fiber patch cable to the SPF module on the switch.

I managed to get ONE switch working in ONE IDF by using an aqua OM3 patch cable connected to a Ubiquiti module. The only way I could get that connection to work was with a multimode fiber converter in the MDF connected to a port on the switch. SPF would not work. I've tried various SFP modules, including an SPF+ 10G multimode, a Trendnet 1.25G multimode, a generic 1.25G multimode module, and even a couple single mode SFPs, just in case. I've tried aqua OM3 patch cables, orange OM1 patch cables, various LC to SC adapters, and some yellow single mode patch cables, again, just in case. I've tried just about every single combination of the above in some fashion.

On a second switch in a second IDF, even with a fiber converter in the MDF, I can't get a link. If I remove the converter from the first connection in the first IDF, I can't get a link with any combination of the above.

I am about to go insane with this problem. This should be straightforward and easy, but it's driving me nuts.

The contractor installing the actual fiber backbone has told me it's multimode fiber, OM3, 50 microns. I suppose that might be incorrect information, but I have had no issues or inconsistencies …
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Consider the below scenario

userPC---- firewall --- Destination-server
                         10.1.1.1


I have installed some software on the server, the service  of that software is using port # 301.

1) Scenario...
      Firewall defined
      server#  service UP
        userPC# telnet 10.1.1.1 301  --> user get reply

2)Scenario...
      Firewall defined
      server# service DOWN

is there any command/3rdparty-tools available to just varify, pockets from userPC able to reach on the server through port#301

==
This I asked just to segregate if there any issue, problem from firewall side (or) destination server side.
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On an Avocent console server 5000 or 6000 model - how can you modify the password of the GUI if you have access to root at the console?
It appears the two aren't linked? Thanks.
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I need to tool like threadfix to tracking vulnerability in complex environments
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When doing cisco switch implementation what is the recommended checklist that has to go through for successful implementation? Is there any excel sheet someone can share which is general template for any network implementation? This will be great help.
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Having a very strange issue whereby a few webpages do not display correctly on all computers in the office (including a mobile phone  - not on the company domain).
Two examples are speedtest and westin (see below)

speedtest.net page
westin.JPG
As such I am doubting the issue is related to any specific computer. Have spoken with the ISP (BT) and they say if they come and visit they will charge if it is not a BT related broadband issue. I am guessing the issue must be either on the router or somehow network related. I have tried local stuff like flushing the DNS, changing DNS to  8.8.8.8 etc but running out of ideas, apart from perhaps resetting the router. Apparently all was working fine up until a couple of days ago on this network. Any help/ideas would be appreciated.
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Hi Need to upgrade the firmware of an Aruba 2530 48G PoE+ Switch

The switch is in our remote office. I'm trying to set my laptop up as a TFTP server and connect to its public IP address over port 2222. It fails to upload the software.

Any idea please
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Hi,

as attach file show, I have two firewalls, one is too old and could not support VRRP, but I want to make a backup route.

so I write two default route on Core switch:
ip route 0.0.0.0 0.0.0.0 192.168.1.1
ip route 0.0.0.0 0.0.0.0 192.168.2.1

I don't know if there will be problems.

if 192.168.1.1 is broken, the traffic will through 192.168.2.1?

Regards,
Kai
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Dear Wizards, which one is the best open-source software for log management?

I'm doing a research about Octopussy and Greylog, but not sure which one is better. Does anyone have experience about this?

Many thanks!
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Hi Experts,

 I have used N-able/Solarwinds for the past four years! but being a one man band and their current pricing structure thinking its time to move on...

 I have had numerous issues with their patching just not working, despite working with their support in trying to rectify (Their support - which I have to admit was not too bad)! but just has not been a stable product for me and has cost me clients, with it just not quite working as expected...

Now that's out of the way....

I am looking at the replacement between the following Naverisk - Atera - SyncroMSP.... I have looked up some posts and some mention of comparisons with Atera but found nothing with Naversisk and Syncro anyone have any thoughts dealings with these companies???

Naverisk seems a to be quite a good fit with my needs and wants, but it looks quite dated

Syncro - Waiting to see on Xero integration prospects but they have Bit Defender built in.

Atera - Sync with Xero but via CSV file

My needs/wants,

The billing system to sync with Xero, the backup to monitor Datto & Storage craft, and the AV  - Bit Defender !!

Thoughts on these companies in your previous dealings with them if you use or have used would be great!

thanks in advance!!
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Running SPLUNK Enterprise / Version: 7.1.2 / (Build: a0c72a66db66) in a Docker Container on my Synology 416play NAS / DSM (Ver: 6.2-23739 Update 2) . I have access to the Web Interface but am not seeing any of my log files from the Synology. Sending log information using PORT 514 / UDP / BSD (RFC 3164). Not sure what I'm missing.
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I want to monitor in my network system if any one using a VPN, on my system how can i do that, and also want to know the IP address of the VPN server
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i want to be able to provide remote access to our network users so they can access their desktops from home. this is s relatively small scale affair with say 4 users on one network having remote access to their desktops from home or when on the move.

i have several sites that need this facility.

most of the products i have found seem to be for support like us wanting to access multiple sites to provide remote support.

looking at teamviewer it only allows a single connection at one time, unless you go for the corporate edition, then it provides 3.

can anyone recommend a remote access product, that is aimed at the end user getting access to their own desktops, allowing more than one connection at once?

that was one of the good parts of small business server, which we are now replacing with 2016 server running a couple of virtual machines for dc and exchange.

providing a suitable replacement for this part, is being more difficult than i imagined.

any advice appreciated.
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Need to recover passwerd for cisco switch 4507R-E without removing the configuration
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Is there a way to route email traffic from my server to another computer with 2 NIC cards installed;
one NIC on the same network segment as the server and the other on a different network?
the goal is to get email traffic routed from the server to the computer with 2 nic cards then over to nic on
the different network address

Server Win12R2 [192.168.0.5/255.255.25.0; gw 192.168.0.11] to the gateway computer >
Gateway WIn7 enterprise HAS 2 NIC CARDS [192.168.0.11/255.255.255.0] & [172.18.135.48/255.255.255.0]
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help with setting up VLAN on a few switches for phone and data equipment.

i have a series of managed switches that are uplinked together.  I would like to set up a VLAN 100 for a dedicated router that is on port 48 of one switch. This router will listen to requests from phones that are plugged into any other random ports on the switch.  This switch is a ubiquiti unit that allows me to set port 48 to listen to vlan 100 traffic only.

The phones are set to 802.1Q with a vlan of 100.  there are other computers and servers on the switch that are on a 192.168.0.x subnet.  The server is handing out DHCP as well as the router on port 48.  The idea is to isolate the traffic for the phones to ONLY communicate with the DHCP server on port 48.  

Right now, this setting is working. However my question to you, is since the phones are all plugged into random ports 1-47 and set to vlan100  and these ports are set to listen to both default lan traffic as well as vlan100...am i simply congesting the switch with added default and vlan traffic vs setting the actual ports that the phones are plugged into to ONLY vlan 100?

Also, if i plug in another switch,, do i need to set the uplink from one switch to another switch with a vlan100 for them to comminicate or will they pass the phones traffic that is tagged 802.1Q VLAN 100 traffic to the other where the port 48 will ultimately listen and grab it? Thank you!
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Does anyone know what MIB to use on a NetGear switch to gain the port and MAC address (of the connected server) via snmpget?  Snmpwalk gives me pages and pages of info but does not include what I'm looking for.

Thanks in advance.
-Steve Carpenter

UPDATE:  The short story is that you cannot get this info via snmp from a NetGear Pro series.
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Hi,

I built a new office in Chicago, but our staff is always play games and watch movies in office, I banned many address in the firewall, but too many address, it needs to be set so many rules in the firewall, obviously can't do that, who knows what kind of equipment or service can do it, I want to buy it.

Many thanks,
Kai
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We have total 7 scope configured in DHCP out of which 3 is showing blue exclamatory mark, when I click on display statistics for these 3 scopes all value is showing zero only. Event logs showing error messages like "DHCP client request from C42F909FAB66 was dropped since the applicable IP address ranges in scope/superscope VLAN40 are out of available IP addresses. This could be because of IP address ranges of a policy being out of available IP addresses." for all these 3 scopes only. However all these scopes are not more that 50% occupied.

DHCP lease is 10 hours for all scopes except scope for mobile user.

In DHCP properties DNS Tab
""Dynamically update DNS record only if requested by the DHCP clients"" is checked.
""Discard A and PTR records when lease is deleted"" is also checked.

Assign IP addresses dynamically to clients of: is DHCP

In DNS Scavenge stale resource records are set as No-refresh interval 3 days and Refresh interval 4 days for all the zones and scavenging Period is 1 Day.

I performed the reconciliation and restarted the DHCP services in both DC and is ADC. Also I checked by restarting our ADC as it was also showing the same thing but it also doesn't work however I have not cheeked  by restarting our DC yet.

Please suggest if anyone having the solution for this.
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Dear Experts, I'm testing the SPAN feature in Switch Cisco 3750. This is the diagram:

SPAN.png
This is configuration on Core SW:

monitor session 1 source vlan 55 both
monitor session 1 destination interface g1/0/13

Open in new window


It seems like working but the whole vlan 18 was hang, so I could NOT access the PC which was installed wireshark. How can I fix it? Can we just mirror traffic from some IP addresses, not all VLAN?

Many thanks as always!
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Hi Everyone,

I am using the Fortimanager 400C (v5.2.10-build0786 170112 (GA)) Some fortigate units are not adding  I am not able to ping them from Fortimanager while I am able to ping Fortimanager from Fortigateunit I am trying to add Fortigate60D (v5.2.9,build736 (GA)) I have adrteady check the FMG_Access is enable on the Fortigate 60D.

Please asssit me.
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Dear experts,

I am new to the DNS and DNS load test. Now i have task to test Load Test on two BIND9 servers [RHEL6]. I had googled it and i found dnspref is good tool to evaluate throughput and latency. However, I need a script to do this task. I will be very helpful for me if any one share the info.

thanks,
Maddy..
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Hello,
I have mikrotik 951
I have internet router with ip 192.168.1.254  and the mikrotik ip Is 192.168.1.253 I add a route to 192.168.1.254 with pref 192.168.1.253 also i have dhcp server on 192.168.1.254 that give the client getaway and dns  as 192.168.1.253 to point it to mikrotik.
till now the internet work on the client without any problem.
when i try to add a hotspot the internet stoped , the client login but no internet.
please note that i setup the hotsport from wizard. and also i disabled the dhcp server after that
so where is the problem ?
thanks.
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1. Can someone explain me if there is any changes in .cloginrc file, I need to run the rancid-cvs and rancid-run,
2. When i am trying to login i can see that the username is not pulling from what is there in .cloginrc.

For Eg:
(Under my clogin file)
I have mentioned
add user 1x.x.x User1
add password 1x.x.x       {password}
add method 1x.x.x telnet ssh

But when i am trying to login, i can see that username is in rancid. I am not sure why its happening. And to make sure that if try firewall login or normal login, its going with actual username only
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Would the following configuration elements be sufficient to export netflow information from  Nexus switch from a particular vlan?

feature netflow

flow exporter splunk
  destination 172.20.1.99
  transport udp 20066
  source loopback0
  version 9

flow record netflow-record
  match ipv4 source address
  match ipv4 destination address
  match ip protocol
  match transport source-port
  match transport destination-port
  collect counter bytes
  collect counter packets

sampler netflow-sampler
  mode 1 out-of 4956

flow monitor flows01-monitor
  record netflow-record
  exporter splunk

interface vlan 100
 ip flow monitor flows01-monitor input sampler netflow-sampler

(cisco Nexus 6004 Chassis; Version System version: 7.1(3)N1(2))
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Network Management

13K

Solutions

15K

Contributors

Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.