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Posts published by “user19215”

Snmp walk issue

I'm using a program that polls the port vlans from the switches by snmpv2 (Snmp walk is used) but im having trouble polling the port vlans from hp switches. Does anyone know any reason that prevents the software from polling ...

Hp procurve 2510 ssh problem

My app connects to switches via ssh to gather info from them. I can connect to any model except this one. I get the authentication error from the switch yet i can connect via putty with the same credentials. Do you have any ...

Fortigate Firewall [on hold]

I need to scan ports for my software but i get "action:server-rst" message. What is the reason for this message. I created rules for my ip to let anything. Thank you in advance.

Dhcp relay on backbone [on hold]

I'm configuring a backbone. I have a dhcp server and i need to use dhcp relay. Do i write the relay's ip adress under the vlan or the interface vlan? Is there a difference between these two situations(when i write the relay i...

Radius and certificates

I'm trying to understand something. When a client and the radius server start the connection how does things work? Is it always a tls connection and does it use the symmetric encryption after validating certificates like a cl...

HP switch “No untagged port”

A network engineer showed me the show vlan output of an HP switch. I know tagged ports are trunk and untagged ports are access in Cisco terms. But can anyone explain the "no untagged port"? How is this used in real environme...

Arp Cache Timeout [on hold]

I'm trying to poll the arp table from a backbone switch but i want to understand which records are up. I just want to know if there is a specific time for the switch to keep a record on the arp table even if it doesn't get ...

Dhcp during vlan change [on hold]

Think of a pc with dhcp working on it connected to an access port for vlan 10. How does the dhcp know and asks for a new ip when i change vlan of that port? Is it because of the shut not shut command or something else?

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 working on an HP switch.

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Dhcp Broadcast Through Switches

Think of a pc connected to switch1. Sw1 is connected to sw2(trunk port on both switches) and sw2 is connected to a router(dhcp server). Pc sends a dhcp broadcast. Does sw1 passes the broadcast through the trunk port(connected...