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Hello,we've got a strange problem in our network environment with connecting one HP1920-24G (JG924A) through LACP to two Nexus C5548UP switches with configured vPC. To be precisive we are connecting our HP switch through two Fabric Extenders C2248TP ...

vasilij by Level 1
  • 2039 Views
  • 1 replies
  • 0 Helpful votes

Resolved! ACL query and dhcp

Hi,   A simple query regarding Access Control Lists and dhcp.   192.168.1.2 is the dhcp server.   Say I have a vlan 101 configured with the following:  ip access group TEST_IN in  ip access group TEST_OUT out  ip helper-address 192.168.1.2   Here are...

jcrow by Level 1
  • 2021 Views
  • 7 replies
  • 0 Helpful votes

I have two main sites let say A and B. A has network 10.1.0.0/16 and B has 10.2.0.0/16. Between these sites I have made an EIGRP. For site B I have a vlan 230 with an interface vlan 230 with ip 10.2.3.1 and ip helper address is 10.1.0.3 which is my D...

ZEBIT1785 by Level 1
  • 463 Views
  • 3 replies
  • 0 Helpful votes

Hi all, We used to use dot1x in our environment on WS-C2960-24PC-L switches normally, we have an IP phone (Avaya) connected to the port in a pass-thru mode enabled and supplicant mode disabled, and connected to the phone a normal PC, when we authenti...

Hello all,   I need some assistance with creating some ACLs. In my environment I have a few vlans 192.168.101.0/24 - 192.168.105.0/24 (.102, .103, and .104 are in there as well), as well as the default vlan 192.168.1.0/24.   What I am trying to do is...

Having an issue with a site to site tunnel. The tunnel is up and I can ping and ssh to swtiches from site A to site B, but I can't see anything else on the subnet of site B. Also I can't ping back to site A at all from site B.   When I do a tracerout...

JoeT by Level 1
  • 983 Views
  • 12 replies
  • 0 Helpful votes

Would like to see about getting DHCP configured on a Cisco switch to auto-register the computers hostname with a MS DNS server.  Had to troubleshoot a workstation hogging bandwidth.  Using Netflow, I could see the ip address of the offender but could...

Hi,   We have an uplink port went down and up itself this morning. The switch is WS-C3560-48PS-S and ios is 12.2(55)SE10. The port went down and then up is one port of the port channel. when I check the logs, i got the following:   097615: Feb  8 201...

Ge Qu by Level 1
  • 1178 Views
  • 3 replies
  • 0 Helpful votes

hi guys weird issue   I have just replaced a 3560 switch with a newer box 3650. PC-based clients are working fine, can access both local and remote resources over the trunk port. My laptop is also getting online, but... The new switch cannot be seen ...

Resolved! TRUNK

#int fa 0/0 # switchport allowed vlan 10,20,30 #switchport allowed vlan  40,50,60   so here how many vlan will be allowed 3 ( 40,50,60 ) or 6 (all )

jonk34567 by Level 4
  • 449 Views
  • 4 replies
  • 0 Helpful votes
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