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Dell Power Connect 3324

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I have 3 Dell Power Connect 3324 Switches that form my network which also serves has an IP phone system. I remember when I installed the switches they had to be set to give IP addresses only thru the Phones. However, I was able under guidance of Dell to set some of the ports so that no phone was needed. My problem is that I lost the directions that I had used and don't don't know where to start because I don't even know what to called in the manual.

Any help will be appreciated 


Unable to retrieve STP Port Table via SNMP on Dell N4032

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On the system I'm working with, we have both Dell N4032 and Dell 2824 switches.

I'm using network management software to monitor these switches via SNMP.  One of the features of the software I'm using is it detects the beginning and endpoints for the switch interfaces.  It uses information from a few different common MIB tables, including the STP Port Table (dot1dstp, oid is 1.3.6.1.2.1.17.2.*). On the 2824 switch, I'm seeing all of the data in this table, but for the 4032 switch it returns an empty table when performing an SNMP walk.  I've tried adding in the specific tables and even the unique OIDs in the switches SNMP->View settings, but still no luck. 

Routing and VoIP on N4000 and N3000 switches

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Hello,

Having some issues and really could do with some answers from some smart
people.

Currently implementing a collapsed core network with a Dell N4032F as a
core and then 22 N3024P/N3048P as edge switches. Some are directly
connected to the core via 10GB fibre others are connected to each other via
the Te ports as trunks. Although the 3024's are router capable this is not
enabled, only router is the 4032.

I have put some of the trimmed configs for the 4032 and 3024 below.

I need answers to the following questions...

1. I have defined the vlans on the 4032 and turned on GVRP, IP Routing and
IP Routing-Multicast. I can see the GVRP (Dynamic VLANS) on the 3024's. Do
I need to enable gvrp on the Te trunking interfaces?

2. We have an Alcatel Voice switch with an address of 192.168.12.246. I
have this connected to one of the edge switches on a copper Gi port. I have
a static vlan for VoIP setup on this switch. What is the proper port config
for this?

3. We then have our PC's connected via the phones. Although the PC's are
leasing dhcp addresses ok, the phones are not getting their configs from
the phone switch (also a dhcp server for their voice vlan).I have tried a
config of ...
switchport mode general
switchport general pvid 10
switchport general allowed vlan add 10
switchport general allowed vlan add 900 tagged
voice vlan 900
voice vlan auth disable

But, since the VLANS are dynamic I can't do the statement "switchport
general pvid 10" I don't know why. Surely I can do all the vlan config on
the 4032? or is this the wrong approach.

I have a Cisco background but, having difficulties getting my head around
Dell Switch OS N3000_N2000v6.3.0.18. The 4032 is running 6.3.0.18. Oh and
they are all set with a Software Capability as ACCESS ROUTER.

Thank you for any help.

~~~~~~~~~~~~~~~~~~~~~~~
4032

!Current Configuration:
!System Description "Dell Networking N4032F, 6.3.0.18, Linux 3.7.10-
4ddb1406"
!System Software Version 6.3.0.18
!Cut-through mode is configured as disabled
!
configure
gvrp enable
vlan 10,50
exit
vlan 10
name "Data"
exit
vlan 50
name "Management"

vlan 900
name "VoIP Phones"
exit
hostname "N4032"
slot 1/0 3 ! Dell Networking N4032F
slot 1/1 6 ! Dell QSFP Card
sntp server 130.159.196.117
sntp server 130.159.196.118
stack
member 1 2 ! N4032F
exit
interface out-of-band
ip address 192.168.100.210 255.255.255.0 192.168.100.254
exit
ip routing
interface vlan 1
exit
interface vlan 10
ip address 10.100.254.254 255.0.0.0
ip pim
!
interface vlan 50
ip address 192.168.20.210 255.255.255.0

interface vlan 900
ip address 192.168.12.254 255.255.255.0
exit
!Static route to internet gateway (Gateway of last resort)
ip route 0.0.0.0 0.0.0.0 10.0.0.254 10

username *****removed*****
ip multicast-routing
ip pim dense-mode
!
interface Te1/0/1
description "Uplink to ..."
gvrp enable
switchport mode trunk
exit
!
! Te1-15 removed for brevity
!
interface Te1/0/16
description "Uplink to ... Internet gateway"
gvrp enable
switchport mode general
switchport general pvid 10
exit
!
interface Te1/0/17
description "Uplink to ..."
gvrp enable
switchport mode trunk
exit
!
interface Te1/0/18
description "Uplink to ..."
gvrp enable
switchport mode trunk
exit
!
interface Te1/0/19-24
description "Links to VSphere 6"
switchport mode general

~~~~~~~~~~~~~~~~~~~~~~~
3024

!Current Configuration:
!Software Capability "ACCESS ROUTER"
!Image File "N3000_N2000v6.3.0.18"
!System Description "Dell Networking N3024P, 6.3.0.18, Linux 3.6.5-
7dc37651"
!System Software Version 6.3.0.18
!
configure
gvrp enable
vlan 900
exit
vlan 900
name "VoIP phones"
exit
hostname "N3024"
slot 1/0 6 ! Dell Networking N3024P
stack
member 1 3 ! N3024P
exit
interface out-of-band
ip address 192.168.100.230 255.255.255.0 192.168.20.210
exit
interface vlan 1
exit
interface vlan 50
ip address 192.168.20.230 255.255.255.0
exit
interface vlan 900
ip address 192.168.12.254 255.255.255.0
exit
application install hiveagent start-on-boot
!
interface Gi1/0/1
switchport mode general
switchport general allowed vlan add 900 tagged
voice vlan 900
voice vlan auth disable
exit
!
!Interfaces 2-21 removed for brevity

!
interface Gi1/0/22
description "Uplink to Alcatel PBX"
switchport mode trunk
exit
!
!!Interfaces 23-24 removed for brevity
!

interface Te1/0/1
description "Uplink to ..."
gvrp enable
switchport mode trunk
exit
!
interface Te1/0/2
description "Uplink to ..."
gvrp enable
switchport mode trunk
exit
snmp-server engineid local ****************************
exit

~~~~~~~~~~~~~~~~~~~~~~~

n4032 encrypt local passwords?

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I'm not finding a way to encrypt the user passwords for the local users on our new n4032's.

I type username USER1 password PASSWORD priv 15 encrypted 

but the password is still plain text if I do a sh run

I looked around but the only thing I found was that these switches just don't do that.  Is that for real?

Powerconnect 8024F 100Mbps copper port speed

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Hello, According to the spec sheets, 100Mbps should be supported on the copper ports. However when I connect a device at 100Mbps, it just says there is no link. The lights on the front are lit, one green one orange at the port. When I try configuring the port and forcing the speed to 100, it tells me it is invalid. How do I connect 100Mbps devices on this switch? Running latest 5.1.10 firmware. Thanks in advance!

Dell N4000 Stack Status - MIBs for monitoring or other hints

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Hi,

We use Nagios XI with the check_powerconnect plugin for monitoring our N4000 switches.
This plugin provides values like general information, fan status, health, power supply status and uptime, not the stack status.

How can we monitor the stack status also? For Cisco switches, a special plugin is available.

In the latest firmeware, a lot of MIB files are implemented. Maybe we can adjust the Cisco plugin with Dell OID's like?

Cisco example:

my $cisco_stack_table = "1.3.6.1.4.1.9.9.500.1.2.1.1.1";

my $cisco_stack_state = "1.3.6.1.4.1.9.9.500.1.2.1.1.6";

my $cisco_stack_ring = "1.3.6.1.4.1.9.9.500.1.1.3.0";

my $cisco_stackport = "1.3.6.1.4.1.9.9.500.1.2.2.1.1";

my $cisco_stacksub_table = "1.3.6.1.4.1.9.9.276.1.6.1.1.2.14.83.116.97.99.107.83.117.98.45.83.116";

Does anyone have a hint or another solution? Which OID's are needed?

Thanks!
Markus

Dell N4000 spanning-tree issue

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Hello

We have a setup of 2 dell N4000 switches that are stacked. We have a dual ethernet link to our office that has 4 N2000 series switches stacked.

We can't use port channel or lacp on this connection as it's not supported by the ISP.

When we setup spanning-tree priority on the ports it's not working on the N4000 switches. On the N2000 it's all good. We are running latest firmware 6.3.1.8

spanning-tree mode pvst

show running-config interface tengigabitethernet 1/0/46


description ""
switchport mode trunk
switchport general allowed vlan add 3,10,3500-3517
switchport general allowed vlan remove 1
switchport trunk allowed vlan 2-3,10,3500-3520

show running-config interface tengigabitethernet 2/0/46

description ""
spanning-tree port-priority 240
switchport mode trunk
switchport general allowed vlan add 3,10,3500-3517
switchport general allowed vlan remove 1
switchport trunk allowed vlan 2-3,10,3500-3520

show spanning-tree vlan 3500

VLAN 3500
          Spanning Tree: Enabled Mode: pvst
                                            RootID    Priority        36268
           Address         F8B1.563F.9BE0
           Cost            0
           Port            This switch is the root
           Hello Time: 2s Max Age: 20s Forward Delay: 15s
 BridgeID  Priority        36268 (priority 32768 sys-id-ext 3500)
           Address         F8B1.563F.9BE0
           Hello Time: 2s Max Age: 20s Forward Delay: 15s
           Aging Time 300 sec

                             Interface Role       Sts           Cost      Prio.Nbr
--------- ---------- ------------- --------- --------

Te1/0/46  Disabled   Forwarding    0         128.46
Te2/0/46  Disabled   Disabled      0         128.114

Please help on this issue.

Powerconnect M6220 Switch Unable to set port Speed

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I am trying to set a port speed to 100 instead of the default 1000 using the following command:

1 Enter Interface Configuration mode for port 1.

console#configure
console(config)#interface gigabitEthernet 1/0/1
2 Change the speed and duplex settings for the port.
console(config-if-Gi1/0/1)#speed 100
console(config-if-Gi1/0/1)#duplex full
console(config-if-Gi1/0/1)#exit

But I got an error: "An invalid interface has been used for this function." Please refer to 

Trying to update the port speed on the GUI also returned an error:

Could any one advise what I am doing wrong? Thank you!!


Configuration Best Practices iSCSI - x1052 switch

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Hi folks, i'm looking to connect a x1052 switch to our network and configure it for iSCSI. Anyone have any current documentation on what to enable/disable on this model of switch?  Thank you in advance!

5548 ARP Timeout/ Switch Mode

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Hi,

In our production environment we are having intermittent connectivity and slowness across all subnets within our layer 2 network. Everything appears to be find from a hardware stand point. Eventually the issue resolves itself. This has led me to believe that there is something going on with the ARP table and MAC address tables. After doing some research most recommend setting the timeout for both to the same (around 300 seconds). Based on what I found in Dell's PC5548 documentation (Dell PowerConnect 5500 Series CLI Reference Guide) the switch needs to be in switch mode (default is router mode) in order to configure the arp timeout to 300 seconds. Below is an excerpt detailing CLI configuration. 

Syntax
arp timeout seconds
no arp timeout

Parameters
seconds—Specifies the time interval (in seconds) during which an entry
remains in the ARP cache.
(Range: 1–40000000)

Default Configuration
The default ARP timeout is 60000 seconds in Router mode, and 300 seconds
in Switch mode.

Command Mode
Global Configuration mode

Example
The following example configures the ARP timeout to 12000 seconds.
Console(config)# arp timeout 12000

How can I change the 5548 to switch mode? How does changing it to switch mode affect the configurations? 

thanks,

Leo

Guest WLAN with VLAN (Dell PC 6248)

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Hello Community,


i want to set up a Guest WLAN using 2 VLAN's.
Setup: IPFire, Dell Power Connect 6248, Netgear WNAP 320 Access Point


The Blue Interface on the Firewall tag all frames with the ID 15.

On the Switch near all Ports are untagged and in the native VLAN 1.
The "Guest-VLAN" has the VLAN ID 15.

Port Settings


G36: Trunk

G22:

All untagged frames from the Native-VLAN 1 get the ID1 when they reaches Port 22.

VLAN Membership


In Native VLAN 1

In "Guest VLAN" 15:

So, on the Port 22 who is connected to the AP, the Frames with the ID15 (Guest) and the Frames who get the ID 1 should transmitted to the AP.

On the AP, I set up 2 SSID's.

The Staff-WLAN has the VLAN ID 1 and the Guest-WLAN the VLAN ID 15

But only the Staff-WLAN works. I don't get an IP-Adress when i connected with the Guest-WLAN.
Another Setup on the Access Point:

I'm a Beginner in this topic and English is not my favorite language, so please apologize little mistakes :)
Do you have any ideas?

Thanks. :)

N3048P, S4810, cisco ip phones and multicast OH MY!

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I am out of my realm of expertise.  We are trying to get a new phone system up and running on our network and the ability to page is holding us up from going live. 

We have two TOR switches (S4810) that all the distro switches are connected to (N3048P) we have isolated the ip phones to their own VLAN (60) with the CIsco phone servers on VLAN 64. Everything seems to work inside and out except for paging. I assume it is a multicast issue since multicast has never been implemented on the switches.

I have enabled multicast globally on the switches but that is as far as I have gotten. The TOR switches are using VRRP for VLAN 60 and also VLT between the switches.

What do I need to do next?  so confused right now.

Thanks

   

PowerConnect OpenSSH Version Vulnerability

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We have Dell PowerConnect 6224 switches that are running the latest firmware however our security scans show version 4.3 of OpenSSH being used on those devices.  Security shows two vulnerabilities listed below and wants to know if Dell intends to update the version of OpenSSH running on those switches or if Dell's implementation is vulnerable to these CVE findings.  Please let me know.

CVE-2008-5161:

The version of OpenSSH running on the remote host has an information
disclosure vulnerability. A design flaw in the SSH specification
could allow a man-in-the-middle attacker to recover up to 32 bits of
plaintext from an SSH-protected connection in the standard
configuration. An attacker could exploit this to gain access to
sensitive information.

CVE-2011-4327:

According to its banner, the version of OpenSSH running on the remote
host is earlier than 5.8p2. Such versions may be affected by a local
information disclosure vulnerability that could allow the contents of
the host's private key to be accessible by locally tracing the
execution of the ssh-keysign utility. Having the host's private key
may allow the impersonation of the host. 

Note that installations are only vulnerable if ssh-rand-helper was
enabled during the build process, which is not the case for *BSD, OS
X, Cygwin and Linux.

Ram memory normal usage on N2048 and N4032

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I have a doubt regarding the ram usage on N2048 and N4032. The N2048 has a 1GB Ram memory but the usage seems to be pretty high  ( nearly to 1GB). Under standard conditions what is the average usage of this model? 

This is the current code : Dell Networking N2048, 6.2.0.5, Linux 3.6.5-1289​203e 

We want to discard a memory leak on switches running this code.

Thank you.

Luis.

Create VLAN on Powerconnect 2848

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I have  a Powerconnect 2848 and i want to create vlans. So i'm starting as simple as possible:

I have set port1 on default PVID 1 and port 2 on PVID 2

In VLAN membership:

VLAN ID 1                      VLAN ID 2

1      2                              1         2

U     B                              T         U

I don't have communication between computers on port 1 & 2. What i'm doing wrong?

Do i have to enter VLANID on network card on the computers?

Thanks in advance


Temperature State Change Alarm OID

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Hi all,

I'm trying to set up monitoring of some N4000 series open manage switches on PRTG and I think I have found the OID's I need but..... The value for the OID's I have found include this :

Temperature state change alarm: Unit number1 current, normal, previous, warning 

This is not ideal as I think it refers to the threshold value of 75 degrees C and i would prefer an alarm to generate at 55 degrees.  I've read a few other posts related to this but the OID values given do not work for my switches.

Greatly appreciate any thoughts!

Stacking N1500 series switches

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Hello everyone

I am trying to make 4 switches form a stack but with no luck so far.  I believe I follow the steps correctly but I really don't know why the rest of them do not add themselves to the stack. If anyone has some spare time, please have a look at the steps I take below:

1. The cables I use are SFP 10G. The ports I want to use are 1/0/3 and 1/0/4. I can confirm that the cables are plugged in correctly to form a ring topology.

2. Power on switch 1 (the one I want it to be the master) and access the switch using hyperterminal.

3. After a minute or two I power on the next switch and then the rest of them.

3. go into 'operational mode' and start the 'setup wizard'. I then create an admin account, and setup vlan1. I enter the IP, subnet and GW

4. Then I follow the steps shown in this link: http://www.dell.com/Support/Article/us/en/19/HOW10800

5. After I run 'reload', I reboot  all the switches but they all become unit 1.

I don't know what I am doing wrong here. Any suggestions please?

N2848 - MAC Access Control Lists

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Hi,

Our network uses several Dell 2848 switches and we would like to restrict network access to a certain group of MAC addresses.

Has anyone any experience of this?  From the menu I do see this option 'Home > Switching > Network Security > Access Control Lists > MAC Access Control Lists'.  I can't find any explanation of this function in the PDF manuals I downloaded so wasn't sure if I was in the right place.

Any help would be greatly appreciated.

controlling inter vlan routing

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hello i am using a stack of 2 dell n3048 network switches as my default gateway. 

vlan 1 data 

vlan 10 - ***

vlan 30 video 

currently they can all communicate with each other . is there any way to control which of these vlans can access the other?

example : data vlan cant access video vlan

is there any access list on these switches or would i have to route the traffic thru my firewall ?

Dell power Connect 2848 set port speed

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Hello, I have a Dell power Connect 2848 need to set ports to 1000 gigabit only not Auto sensing ?

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