Never done that and need advice how its being done normally.

I need to relocate uplink one floor up in the building.  Larger server room, better AC, power, etc.
Moving all the switches up there.  How do I move the ISP handoff?  Fiber single-mode.
Do I just put a patch panel and route up there, or move the handoff?  Is it something ISP responsible per request or cabling contractors?
What's the best option?  Please advice.

hi guys

I was hoping that you guys could help me with something. We have many stores across the UK. I am trying to do a revision of our network architecture. I have uploaded a very basic Visio diagram of what it looks like. Stores are connected via the MPLS to a datacentre which has our firewall and from which the internet breaks out. I have created Store A and this configuration is almost identical for all other stores. All stores have IP PDQ machines. The store network traffic goes from the PC's, Tills//PDQ's via the MPLS network to our datacentre and from there, it breaks out to the internet. PDQ's also failover to an analogue telephone line if there is an issue with the MPLS network.

We have additional internet lines at each store for other things such as footfall camera's and mobile devices which I have included on the right hand side. This is so that credit card information is going out of an entirely separate line in case of a breach. So of course, one issue we have is that if (this has not happened yet in the 4yrs I have been there) the internet side at the end of where the MPLS breaks out into the firewall and to the internet went down, then none of the 40 stores can transact properly. Well they can, but via the analogue phone lines which I think is just 20th century rather than 21st.

However, I am reviewing all of this and hoping that we can just reduce 2 to 3 internet lines into just one and introduce VLAN's and consolidate everything.

My questions …

Dear Experts

We have been asked to deploy on premise mail server for which we are planning to go for zimbra network but before to that we have to design the network,  though this email server will be working for internal within main office and branch office as it is connected in mpls network but we also would like to send and receive mails to external domains following measures to be taken
1. if our server or internet goes down the sender mail should not get lost for us once the server or internet gets restored the mails should be delivered to our emails accounts.
2. our domain and ip reputation should be always good so that our messages gets delivered to the inbox on the recipient email
please suggest on how our email server to be configured have internal dns server and make it work as normal email server and for external we have to avail SMTP RELAY service with some service provider please suggest is this correct if not please suggest what service we have to avail for external email delivery with email security will be taken care.

I have noticed on some Aruba wireless controllers the spanning tree is disabled.  Is there a reason to disable a spanning tree on aruba wifi controllers or on any wireless controllers?

If you have two Internet feeds with BGP attracting traffic to your site and one goes out - should that interfere with ongoing uploads?
Say I had 200 uploads via sftp to my site. Provider A does some maintenance but Provider B stays up. Traffic load drops to 50
uploads. Since the connections are TCP/SFTP I would think they would just pause and then continue once the available path became
available. Or is it the case that the reconvergence/hold down timers are likely just too long to keep most of those conversations
alive?

I have a (hopefully very simple question) regarding routing in a hyper-converged environment. In the simplest form, let's say we have a single HC node (HyperFlex, SimpliVity, etc.), and the VMs being hosted on this node are within a typical Web/App/DB hierarchy - so, all in different VLANs/subnets, virtual firewalls in-between, etc.

Given the above, would communication between the different tiers (W/A/DB) require exiting the HC node to an external routing device, or would the virtualization hypervisor somehow be able to handle this? (Let's assume NSX is off the table.)  This would seem to be a "normal" deployment for any HC environment, in that the more condensed the environment, the higher demand for internetwork connectivity.

I'm trying to get to whether a Layer 3 physical switch is "normal" for these environments to handle this inter-tier traffic, or if there are more efficient options.

Thank you

GLBP Configuration



I have configured GLBP on R3,R4,R5 shown in the topology above.
I would like to know why,in the output below, the Standby Router is showing the R5 instead of R4 , they have the default priority. I wonder if the Highest Mac address factors in the election if Standby Router.
another thing that I want to understand is the keyword "Preempt" in the configuration routers that are not AVG.
I know that Priority will determine which router will be the AVG now and which router will take over as AVG if the current AVG is down, but the keyword "Preempt" is still not clear to me when it should factor in

R3#sh run | sec glbp
 glbp 1 ip 192.168.1.254
 glbp 1 priority 150
 glbp 1 preempt
R3#

Select all Open in new window

R4#sh run | sec glbp
 glbp 1 ip 192.168.1.254
 glbp 1 preempt
R4#

Select all Open in new window

R5#sh run | sec glbp
 glbp 1 ip 192.168.1.254
R5#


R3#sh glbp brief    
Interface   Grp  Fwd Pri State    Address         Active router   Standby router
Gi0/0       1    -   150 Active   192.168.1.254   local           192.168.1.15
Gi0/0       1    1   -   Active   0007.b400.0101  local           -
Gi0/0       1    2   -   Listen   0007.b400.0102  192.168.1.14    -
Gi0/0       1    3   -   Listen   0007.b400.0103  192.168.1.15    -
R3#

Select all Open in new window

*** another issue that I cannot figure out  the cause is the Traceroute from Hosts. if it goes through R3( the AVG) , it will make it to R2, but when Traceroute goes through R4 or R5 it displays the Exclamation Mark with H letter, as shown below:

Host#traceroute 192.168.23.2

Type escape sequence to abort.
Tracing the route to 192.168.23.2

  1 192.168.1.15 12 msec 12 msec 12 msec
  2 192.168.1.15 !H  !H  !H
Host#clear arp              
Host#traceroute 192.168.23.2

Type escape sequence to abort.
Tracing the route to 192.168.23.2

  1 192.168.1.13 1016 msec 12 msec 8 msec
  2 192.168.23.2 44 msec 20 msec 24 msec
Host#

I'm looking for some guidance on how to allow Remote Users to access system applications. We currently are running a phase 1 setup where users are sent home with company equipment and use Sonicwall Global VPN software and Remote Desktop to remote into their own computers, located on site.

This is not, however, ideal, as it requires equipment on both ends.

Ideally what I'm looking for is to have a way for a user to have equipment at home, use a secure VPN connection with the Sonicwall Global Client, and then have the user access a desktop that is not in use. One way, obviously, is to have a bank of PC's with one dedicated to each person, but this seems cost prohibitive. So my thought is a virtual desktop.

I currently have two Windows 2016 Servers running my main system, including DNS and Active Directory, among other, core services. Is there a way I can build virtual desktops within that server? Should I have a separate server dedicated just to this task? What would be my starting point? Would I use Microsoft's built in Hyper-V? Would I use VMWare in some way?


The first group will probably be only 5-10 users, though this number may go up. I know there are options like Citrix which would provide a web interface but the way our applications are setup they would require a direct connection and so I don't know if Citrix and the like would work, though I am looking into this as well.


We have hundreds of available DHCP over VPN connections through our …

Hi,

I need  add Cisco 2960 and 3560 switch in GNS3 for practice, kindly suggest how it can be possible

If your data center is in the same data center as an AWS Availability Zone data center - would it be
possible to create a Direct Connect just by patching from your gear to theirs? That is - is there a
way you could avoid some of expense of a carrier getting packets to/from AWS by virtue of being
physically located in one of their data centers?

I have a Seagate Central NAS drive at home and it has been working fine until just recently.

I can no longer connect to the NAS contents through Windows Explorer; I see it listed on network items but am unable to view the contents. I am able to connect to the Seagate Manager which shows me the IP address connection, users etc etc; I can change its name and it is reflected in Windows Explorer which shows that it is connected to the network.

I have read that it is something to do with Server Message Block v1 (SMB v1) settings which have been updated in Windows 10. I have tried updating the firmware on the NAS but it says it is already running latest firmware.

Any suggestions for overcoming this?? NAS holds all of our files; documents, music, photos etc.

We have a Technicolor Modem/wireless router combo device given by Spectrum.  When Spectrum tech first set it up I could connect to is wirelessly and I could see the public wan IP as ie. 1.2.3.4.  We plugged it into our Sonicwall device and everything is working fine.  Bridge mode is enabled and we have a dynamic public ip so I set it to DHCP.   I just want to know why  I'm getting a address of 192.168.0.5 showing on my WAN.  I was expecting to see the public ip instead like 1.2.3.4.

Hi,

We have a main Cisco 3750 Switch. From that switch fiber connections run from the trunk ports to different stacks, essentially all other stacks connect back to this switch. We want to add a backup to this switch in case of hardware failure. Question how do we add it.
1. Do we add it as a second switch in Slave role or is there another way adding it.
2. Also if the first switch does go down, how do we prepare the second switch so that the trunk port are ready to accept the fiber cables