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I am learning to multicast for ipv4 and have a few questions.Okay, I understand that with multicast, every member in the group is aware of a mac address that will be recognized as a multicast frame.When it comes to a switch, I know that a broadcast u...

markel by Level 1
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  • 3 replies
  • 0 Helpful votes

Resolved! ACL block telnet

Hi Experts, doing a lab for ACL to block telnet for PC2 (10.0.0.2 ) even and on another side, all systems should use telnet.I have access-list 100 with the below config. permit tcp anypermit ip anydeny tcp host 10.0.0.2 any eq telnet telnet not block...

jearyro by Level 1
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  • 11 replies
  • 0 Helpful votes

⁶Hi,   Did mistake by configuring virtual stackwise in C9300 switch . I know it doesnt support VSS. Now both switch keeps on restarting.  Error: waiting for 120 seconds for other switches to boot#######Jun 4 15:10:59.082: %PMAN-3-PROCHOLDDOWN: F0/0:...

I have tried to follow the "Recovering Catalyst Fixed Configuration Switches from a Corrupted or Missing Image" tutorial shown belowhttps://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html however it still does...

We have our switches and routers configured with aaa login via a RADIUS server on NPS. When we login to the devices using ssh and telnet, we can login using radius credentials and everything works. The user is automatically taken into enable mode.   ...

ronit by Level 1
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  • 7 replies
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Hi all,i just nned to know is is there any way to prevent network from MACflap.The best way will be when switch will disable the interface where the macflap was detected.I need to set this security feature on 2960s.Thanx a lotBRDave

Hi,I'm have a SPAN session on a 6509E which has a number of VLAN's SPAN'd to two 10Gbps interfaces. This is working fine, but I would also like to include the 802.1Q VLAN tags on the captured packets so I can tell which VLAN each packet originated on...

BlueyVIII by Level 1
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  • 2 replies
  • 0 Helpful votes

I have a Cisco Catalyst 3650-CX that was just updated to v15.2(7)E4 from v15.2(7)E2. Post reboot, I'm receiving the following log message every 5 minutes:%ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's...

Hi,I want to upgrade IOS firmware upgrade of the following  cisco switches WS-C3650-24PD& WS-C3650-48PD currently version 15.2 is available, can anyone provide me link to download latest IOS firmware upgrade link to download and upgrade these switche...

mmwa by Level 1
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  • 4 replies
  • 0 Helpful votes

Hi   I have configured rapid-pvst on my switch and on the vlan but i can't see the config on the sh command   Switch#sh vlan   VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0...

Is there such thing as VTY line groups? like, 0 4  or 5 15?  yes there are but are they really groups? Can you put different configurations in them?But that would me that a user has to log in to a particular group. How is that done?Or do users automa...

launchnow by Level 1
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  • 8 replies
  • 0 Helpful votes