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Unanswered Questions

692 questions with no upvoted or accepted answers
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56 views

Cisco Nexus 9K route-map match interface regular expressions

I'm using a 9504 running 7.0(3)I7(3). I'm trying to configure a route-map that matches all of my VLAN interfaces: route-map RedistribInterfaces permit 10 myrouter(config-route-map)# match interface ...
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47 views

Unable to get NetFlow flow in Cisco CSR1000v on AWS

I'm trying to use NetFlow Traffic Analyzer of SolarWinds or any NetFlow Monitor in my Cisco CSR1000v routers which are deployed on AWS. I am unable to see any NetFlow flows in the NetFlow Traffic ...
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26 views

Wireshark logging same error on client and server

I did some testing in Socket Programming with JAVA and analyzed my traffic with wireshark. SetUp: 1 Server running a new ServerSocket(PORT) and 1 Client running a new Socket(IP, PORT). Server and ...
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34 views

How does UMTS scrambling code work?

In my textbook it is stated that in a UMTS network, scrambling codes (Gold codes) are used to differentiate signals from different cells in the downlink channel, and signals from different user ...
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1answer
68 views

Create ACL for VLAN

I've multiple switches in LAN network environment configured with 3 VLANs, namely VLAN A, VLAN B and VLAN C. Since VLAN A is only allow to access internet without having accessibility to internal ...
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47 views

Why write a static route, it can communicative to each other in my scene?

I have a network topology like below: In Switch0, Switch1 and Switch2, I added the a SVI. However, it is not possible to reach from one SVI the other ones. Now, if I write the following static route ...
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25 views

pfsense CARP with VLANs duplicate default route

I have set up a 2pf CARP with VLANs. So far everything works well however I wonder why and if it is a problem that I get on the VLANs a duplicate default route. My DHCP on the VLANs is of course set ...
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21 views

does ipsec phase1 renewal keep connections?

I have an IPSec tunnel UP and I open a TCP connection when the phase1 expire and is renewed, Is the TCP connection supposed to stay alive or drop ? both in the theory and practical (cisco, ...
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40 views

How to route a specific users IP from WAN to a specific host IP on a subnet OPT1 (pfsense)

I host a game server, Players and Devs use the same launcher/client that has hard coded ports (5555) that cannot be changed. (No Configuration Files) How would I route Devs to the Development Server [...
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27 views

Expanding network to attached building

I own a electronic design company, and recently moved into a new office space. We currently are setup in the front office, location "1" on my image. We also are converting a warehouse into an assembly ...
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25 views

take oid of interface on router via snmpwalk for monitoring

Could someone explain how to get oid value of an interface via an snmpwalk ? I have some value like : iso.3.6.1.2.1.2.2.1.2.15729260 = STRING: "vlan 110" Thanks in advance for help
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32 views

Will LoRa work from Earth To Stratosphere?

I'm unsure if this is the most suitable exchange however I thought it seemed most fitting personally, please correct me if im wrong. I was wondering if LoRa would work to transmit GPS data from my ...
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69 views

Cisco APIC “Error executing command, check logs for details”

I have connected to a spine via Cisco ACI using SSH and notice that command executed in it will be ended with error message "Error executing command, check logs for details". May I know why? Would it ...
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1answer
79 views

Impact of disabling ssl network extender on checkpoint

I have a broad question, that i'm hoping you can guys help out with. I have a checkpoint firewall, that has the option to use ssl network extender checked in UI under VPN clients. I've been asked by ...
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2answers
88 views

Why does Nmap not detect a host which is active and responds to Ping?

I have connected to another laptop via the LAN cable, i am able to access the services running on the other laptop via Ip & Port. When i Ping that Ip, the machine is successfully responding. But ...

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