All Questions

0
votes
0answers
12 views

Query on Cisco IPsec Licensing, HSEC-K9

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 ...
2
votes
0answers
13 views

Sonicwall Dynamic VPN, cannot route to Remote-Protected-Resource

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 ...
0
votes
0answers
13 views

Why are ARP entries on my computer missing when hosts leave the LAN? [on hold]

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 ...
0
votes
0answers
7 views

HTTP Request Connection | Thread Safety [on hold]

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 ...
0
votes
0answers
6 views

Computer in local network not seen by the firewall [on hold]

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, ...
0
votes
1answer
14 views

Why does my route-map blackhole some equally specific routes? [on hold]

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 ...
0
votes
0answers
11 views

Why iperf results are different when I use file as input data to test throughput? [on hold]

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 ...
0
votes
0answers
5 views

How to Properly Get Dependencies for Website Whitelist [on hold]

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 ...
0
votes
0answers
21 views

Could not open two websites with Sonicwall [on hold]

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 ...
-2
votes
0answers
11 views

What is channel concept in network physically? [on hold]

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 ?
0
votes
0answers
11 views

IP Address Management Product Suitability [on hold]

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. ...
0
votes
0answers
15 views

Spanning tree priority values on port-channel

Group Port-channel Protocol Ports ------------------------------------------------------------------------- 1 Po1(U) LACP Gi0/3(P),Gi0/9(P) 4 Po4(U) LACP ...
2
votes
2answers
163 views

Spanning tree Priority values

show spanning-tree interface gigabitethernet 0/2 Switch default Instance Role State Cost Prio type -------- ---- ----- ---- ---- ---- MST00 ...
0
votes
1answer
34 views

NMAP with Ethernet Switch [on hold]

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 ...
-1
votes
0answers
26 views

Hi Please help me to divide below network address into 2 sub nets . 172.172.172.172/24 [duplicate]

Hi Please help me to divide below network address into 2 sub nets . 172.172.172.172/24 regards, annonymous
0
votes
1answer
26 views

Connecting two ISPs on one network

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 ...
0
votes
1answer
19 views

Connecting eBGP and iBGP routers in Quagga

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 ...
0
votes
0answers
13 views

Kill process ARP nexus 7000

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
0
votes
1answer
15 views

Ethernet Protocols (Modbus TCP/IP & Ethernet/IP) can be in the same network and in a ring topology without problems?

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 ...
0
votes
1answer
24 views

SonicWall global vpn

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 ...
0
votes
0answers
5 views

Adding support for NetFlow on a service but a little lost [on hold]

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 ...
0
votes
0answers
7 views

Handling bad network connection client in socket io [on hold]

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 ...
0
votes
1answer
25 views

High Availability for ISR 4431 VPNs

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 ...
0
votes
1answer
14 views

ACL and ACEs Query

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....
2
votes
1answer
44 views

InterVLAN routing issue

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 ...
0
votes
0answers
10 views

Tacacs Plus perl on authorize throws ead error [on hold]

Tacacs Plus perl on authorize throws ead error. What could be the reason here and what is ead error.
-3
votes
0answers
25 views

Determine if an IP address is in an IP Address Range [on hold]

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?
0
votes
0answers
41 views

Block internet on a Cisco catalyst 3560 port

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 ...
0
votes
0answers
24 views

Allied Telesis AT-FS750 MAC authorization with FreeRadius

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.
2
votes
1answer
23 views

Subinterface on Cisco ASA 5550 does not work with VLAN on HP ProCurve

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 ...
1
vote
0answers
17 views

Why can I not see the default gateway when connecting to ASA through AnyConnect?

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 ...
2
votes
1answer
29 views

Which device initiates the data exchange in OSPF (is it the master device or slave)?

I want to know which device initiates the data exchange in OSPF protocol (master device or slave device).
0
votes
0answers
17 views

SNMPv3 traps on Catalyst 9500

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-...
0
votes
0answers
14 views

Can a low SNR Margin be caused by the ISP or ISP equipment (DSLAM etc)? [on hold]

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 ...
0
votes
1answer
28 views

What does a LoRa Gateway actually do?

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 ...
0
votes
0answers
8 views

SSH Hostname & Domain-Name [on hold]

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?
0
votes
0answers
6 views

Ethernet Payload Data Size [duplicate]

In an Ethernet Frame, Why The Size Of The Payload Data Is Limited Between (64 - 1500) Bytes, Why Not Less Or More?
0
votes
0answers
4 views

Cisco Packet-tracer extended ACL [duplicate]

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....
0
votes
2answers
57 views

Fastest spanning tree in multiple-ring topology

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 ...
0
votes
1answer
38 views

How to transition an unauthenticated OSPF area to an MD5 authenticated area on a Cisco?

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 ...
0
votes
2answers
29 views

Confused between packet switching and circuit switching

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 ...
0
votes
0answers
11 views

Reduce Packet Tracer window size

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?
0
votes
0answers
8 views

how to access a switch from a tplink router? [on hold]

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.
1
vote
0answers
25 views

Still cannot get port-forward working in my ASA 5505 - trying the DMZ port now

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 ...
0
votes
0answers
14 views

Cannot change channels on University's WiFi [on hold]

*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/...
2
votes
1answer
26 views

HPE IRF Stack why do I need two physical ports?

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 ...
3
votes
1answer
34 views

ip dhcp class command

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 ...
0
votes
0answers
13 views

PPTP VPN: got a local IP but can't reach the LAN machines [on hold]

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 ...
5
votes
2answers
161 views

How to display entire MAC address table on HP switches

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 ...
0
votes
1answer
23 views

How to plot and benchmark UDP response time?

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 ...

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