All Questions

I'm currently debugging an issue with IPsec tunnels and it seems like one of our client's NW engineers didn't install the HSEC-K9 license. The issue is that the new IPsec tunnels are not coming up ...

Multiple VPNs setup with a Sonicwall SRX320. The SRX320 has an irb interface as follows: irb { unit 0 { family inet { address 192.168.120.1/24; } } } I've ...

From my understanding, an ARP entry occurs when you communicate with a device on your LAN. This ARP entry resolves the I.P. address and caches it for your host the next time it needs to communicate ...

I recently came to know about how a connection is first established between a server and client(browser) when a HTTP request is sent. Before sending actual data submitted by a form submit button, a ...

I'm in charge of a local network. We have a server at 192.168.1.4 and a firewall at 192.168.1.1. The problem is that I can't access a computer(192.168.1.18) within my local network from the firewall, ...

I have a challenging situation. I have two routers, in VIRL, sharing routes via BGP and OSPF I am attempting to remove the "network 0.0.0.0 255.255.255.255 area 0" from my OSPF process. I have tried ...

I did a several tests on AWS EC2 instances to understand basic limitation. And got different results for these commands iperf -i 1 -c server.ip.add.ress iperf -i 1 -c server.ip.add.ress -F myfile ...

Network novice here! We are currently implementing whitelists for our network. Websites often request external resources that are needed to perform certain functions. What tool can I use to obtain a ...

Hello everyone We installed a new sonic firewall after installing we are now unable to access two websites one is www.complyworks.com.Lan port is connected to the unmanaged switch and all other pc are ...

What is the concept of the channel in Physical view, and Is it possible to exist more than one channel on the same frequency , or it must be multi frequincy. how could i imagine the channel ?

I work for a national public sector organisation with around 6000 staff and 40 sites. We have a simple Active Directory setup, single forest/domain with a trust to another older single forest/domain. ...

Group Port-channel Protocol Ports ------------------------------------------------------------------------- 1 Po1(U) LACP Gi0/3(P),Gi0/9(P) 4 Po4(U) LACP ...

show spanning-tree interface gigabitethernet 0/2 Switch default Instance Role State Cost Prio type -------- ---- ----- ---- ---- ---- MST00 ...

In my current network, my device is connected to an ethernet switch. There are other devices connected to the switch and switch is directly connected to the router. But there is a server and it is ...

Hi Please help me to divide below network address into 2 sub nets . 172.172.172.172/24 regards, annonymous

I am working in an institute where the internet connection is divided amongst 3 different floors: Ground Floor, First Floor and Second Floor. Now since I am new to the networking, I know the ...

I am trying to run intra and inter-domain routing using Quagga. I like to announce a prefix from AS7 and I like AS6 receive it and send it to AS2(as shown in the attached topology). I know for intra ...

We have problems with ARP. It does not show records. So killing the arp process is an option. But there is no documentation of how to do it. You will have the commands. Greetings and thanks

Ethernet Protocols (Modbus TCP/IP & Ethernet/IP) can be in the same network and in a ring topology without problems? Please, refer to the attached drawing. What are the equivalent Cisco Switches ...

I have a SonicWall device, and I am new to them. I created the global vpn and, after installing the SonicWall at the customer's site, wanted to make some configuration changes. I am using the global ...

My team develops a packet capture system, from which I should be able to recreate some NetFlow stats. Even if it's a basic template with src/dst ip and port info and packet count. From my ...

Currently I'm working on a MMO game which players can join and exit game whenever they want. I have a connection manager server (CMS) written in golang using socket io library. World connects to CMS ...

I have the following lab setup in GNS3. R1 & R2 are VPN endpoint at my datacenters and R3 is simulating a remote site. What i'm trying to accomplish is having one tunnel from R3 to the ...

So i'm configuring a basic network and I need to create a couple of Extended ACLs. Now my question is, does this ACE permit any TCP connection to the following subnet? permit tcp 192.168.10.0 0.0.0....

I've got one L3 Quanta switch. Having a bit of trouble in understanding the right way to configure VLANs and inter-VLAN routing on it. Routing on the switch is enabled. Ports 0/3 - 0/40 are ...

Tacacs Plus perl on authorize throws ead error. What could be the reason here and what is ead error.

I have no idea about IP addresses and am looking for advices. I would like to know that if I have an IP address, how can I work out precisely if that IP address is in a given IP address range?

Good day Is there a way to block a specific port in a Cisco Catalyst 3560 switch to block the user from accessing the internet but still have full access to the internal corporate resources. The ...

It is possible to configure mac based authorization with FreeRadius on AT-FS750? We need block device in our network with unknown MAC address. Or set limited access with specify quest VLAN.

I created subinterface on Cisco ASA 5550 (ver. 9.7.1): interface GigabitEthernet1/2.810 vlan 810 nameif dmz810 security-level 50 ip address 172.29.12.33 255.255.255.248 And VLAN 810 on HP ...

I've configured an ASA as an AnyConnect server. The IP address pool that'll be assigned to the connecting hosts is from 192.168.10.1-192.168.10.10. Now when I establish a remote access connection to ...

I want to know which device initiates the data exchange in OSPF protocol (master device or slave device).

with our new Catalyst 9500 switches we want to use snmpv3 to send traps. Thats what I configured: snmp-server engineID local 1234567890ABCEDF snmp-server group SG_SERVERFARM v3 priv snmp-server trap-...

Previously I had an SNR Margin of 18db and since two days ago, it has dropped significantly, from 18 to around 9~12db! I had an issue with the specified speed, and called my ISP, they checked my line ...

I have tried researching this question but I'm not quite fully understanding the benefits or true reasoning for having a Gateway. If you have two LoRa RA-02 modules they can communicate with each ...

Why Is It Required To Set a Hostname & a Domain-Name When Configuring SSH?, I Know Both Of Them Are Used To Generate The Key-Name But What Is The Use Of That Generated Key-Name?

In an Ethernet Frame, Why The Size Of The Payload Data Is Limited Between (64 - 1500) Bytes, Why Not Less Or More?

I want PC4 to ping PC5 but PC5 should't can ping PC4. My current config is: Multi Layer Switch: ip dhcp pool vlan10 network 192.168.10.0 255.255.255.0 default-router 192.168.10.1 dns-server 8.8....

I have a topology in which there is a main ring and some nodes in the main ring have a minor ring. 1- which STP configuration has the fastest convergence time? How would you configure spanning tree ...

I currently have an existing OSPF area that has neighborships and is exchanging routes, but has no authentication mechanism. Is there a way to transition it to an MD5 authenticated area without ...

I am a bit confused between packet switching and circuit switching usage in telephones. If there is a loss of packet in packet switching or the packets may arrive in different order why is it still ...

I downloaded Packet Tracer 7.2 for my Linux Mint machine. At first everything worked. But now it looks like this: The interface is way too big. Does anyone know how can I reduce the size of it?

I want to access a switch, my pc is connected with a wireless then it connected with a switch, I want to access this switch, how can I do it. please explain to me, which tool I need. Thanks.

Months ago I made this post here on NE, but I still for the life of me just cannot figure our port-forwarding on my ASA 5505. I have since started over and am now trying the DMZ port instead, but ...

*I'm really sorry if this isn't the place to have a question like this. Since like a week, I've been experiencing extremely poor speed (cannot load even presentations). Speedtest shows 0.5mpbps/...

I'm building exactly the same topology, but there is no explanation why do I need two physical interfaces in IRF stack? So, can someone please explain me, why do I need two physical members in IRF ...

Here is a DHCP configuration that we have here: ip dhcp class range ip dhcp pool abc network 10.10.10.0 255.255.255.0 default-router ... class range address range 10.10.10.10 10.10.10.254 My ...

I'm trying to make my VPS join my home network via a VPN. I want to be able to reach the machines behind the EdgeRouter X from the VPS like it is part of the network. The VPS got an IP, so it seems ...

I want to display the whole MAC address table without needing to press 'space' for the next page, so that if there are 50 entries in the table I'd be able to view them with a single command. I'm ...

Our application uses UDP protocol in the transport layer. I'm currently filtering the packet trace with the port and then manually checking the RTT by selecting the packet stream and by using " Set ...