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Hello all, I am seeing this gratuitous arp in wireshark traces.is it normal in a network.Appreciate if someone could explain a bit about this occurence.Lantroni_ac:5e:fc Broadcast ARP Gratuitous ARP for 192.168.100.11 (Request)the ip 192.168.100.11 b...

suthomas1 by Level 6
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  • 3 replies
  • 0 Helpful votes

hi all, I have a home lab with 2 Cisco routers (2620 and 2651) and 1 switch (2960 catalyst) and working towards CCNA 200-125 R/S. I connected and configured all the devices according to my requirements. My question is: how can I impersonate the hosts...

In our environment we have multiple routers in a DMZ that I had tried to deploy VRRP. After one of the routers "failed" (VZW1) and the VRRP switched to the backup (VZW2) , this caused interruptions to our primary internet feed. And by interruptions I...

seanwaite by Level 1
  • 3015 Views
  • 9 replies
  • 0 Helpful votes

Hi All, I have been tasked to upgrade a few Core Switches and I want to get the Cisco Recommended IOS Current Switch - WS-C6509-E - s72033_rp-ADVIPSERVICESK9_WAN-M - 12.2(33)SXH5 SXH seems to be decommissioned I believe https://software.cisco.com/dow...

By mistake I set the BAUD rate to 230400 via rommon mode of Cisco 2960 Switch. Now i don't have access via console as well via this BAUD rate. I also tried with 115200 but showing the unreadable char. Can anyone tell me the to reset the BAUD to 1152...

Dear All, In this morning I have case which make my router totally down,  then I try to turn power off the button and turn power on my router and its solved, but I need to know what the root cause of this problem, I have attached my router log.   og ...

johan by Level 1
  • 5587 Views
  • 7 replies
  • 0 Helpful votes

Hello, I lile to monitor, how many active calls on a H.323 Voice with BRI Interfaces are ongoing. (C2951-UNIVERSALK9-M), Version 15.6(3)M1 I cant find the good MIB on http://tools.cisco.com/ITDIT/MIBS/MainServlet?ReleaseSel=4479&PlatformSel=98&fsS...

Hello ALL, i need help on how to make the 2 firewall interfaces to communicate with other and to enable ping. interface GigabitEthernet0/1 nameif C4_LAN security-level 0 ip address 172.16.17.1 255.255.255.0!interface GigabitEthernet0/2 description ...

john by Level 1
  • 1171 Views
  • 3 replies
  • 0 Helpful votes

Hi experts, we have 6509 and 4506 switches and i need to upgrade them to latest IOS Please suggest me best IOS and upgrade procedure in VSS 6509 detail: Supervisor Engine 720 10GE Current IOS: sup-bootdisk:s72033-ipbase-mz.122-33.SXI2a.bin 4506 de...

Hi Experts, I am wondering that internally reserved VLANs are different between CCO and lab machine. Which is correct? Q1: Allocated vlans are 1-4094 or 1-4095? Q2: Internally reserved vlans are "3968-4047 and 4094" or "3864-4095"? <CCO> http://www...

by Not applicable
  • 3681 Views
  • 1 replies
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We have some Nexus 3000 in our data centers and need to enable jumbo frames for VMware and storage.  Looking at the documentation, there is no way to apply jumbo frame on a per port basis.  I have created a policy map for jumbo frames.  How do I appl...

Hi all, I currently have 4 3850's as a stack and want to add a 5th. I am not on site and am consoled in remotely the new switch IOS is Version 03.07.03E and the main stack is Version 03.06.05E . If I add the new switch to the stack will the master pu...

lpettit11 by Level 1
  • 579 Views
  • 4 replies
  • 0 Helpful votes

Hi all, I have never come across a problem like this before. We got new 3850 switches with NM2-10 as well as NM4-10 as well as native modular ports. We first started out with LRM sfp:s as theese where available. Connected everyting with various link...

1977bjorn by Level 1
  • 2179 Views
  • 7 replies
  • 0 Helpful votes

Resolved! VACL Question

Community, I have a question regarding the Access Lists used by the VLAN Access Maps when creating a VACL. I understand that when you create an ACL with "permit" statements that are then referenced by the VACL Map, that the "permit" statement is use...

Craddockc by Level 3
  • 883 Views
  • 7 replies
  • 0 Helpful votes