Switching

Hi! I would like to use a Nat Hairpin at a Cisco 3825 (Version 15.1(4)M10), so that I can reach my mail services from inside and outside (smartphone with wlan). Here is my relevant config: interface GigabitEthernet0/0 ip address IP 255.255.255.0 i...

I ran the "sho ip sockets" command on my Cisco 4331 Router running Version 15.4 and saw that a remote IP (one with a bad reputation online) was connected to my router on port 161 (SNMP). I removed the SNMP Community string from the router, and even a...

Does anyone know how I can enable & configure Multicast on a single SVI? I cannot have multicast leave that vlan. I have PIM feature enabled and I have PIM sparse mode running on the SVI. I am not sure how to setup the "ip igmp snooping querier" or s...

Good morning, Dear I contact to request his extensive experience for me and can help indicate what the Mini is right for the Cisco Catalyst 3550 Series Switch GBIC because that need is 10/100/1000 ethernet found several but not what is the correct : ...

Please see this thread, https://supportforums.cisco.com/discussion/13120201/esxi-cisco-3850-upstream-router-routing-not-working

Dear team, Please help me to find out unused switch port in large network. (eg) ports which are not used for more then 10 days. thanks in advance. Regards, Khaleelur Rahman.

Dear Team, I have a problem regarding wireless connection to internet, In my LAN setup whenever i connect to youtube the channel webpage opens up properly but when you click any videos to view the buffering goes on and when you refresh the page somet...

We are in the midst of migrating our core infrastructure from four Cat6500s to two Nexus 7Ks with 5Ks. One of the tasks I am charged with is migrating that STP roots for all of our VLANS from our Cat to our Nexus7K, in addition to migrating the hsrp ...

Hi Inter Webers, I am greatly in need of your assistance and would be greatly for any help.  I am in the process of setting up a voice lab and I am having issues with my router on a stick setup.    It seems I cannot ping the hosts.  PCs: 192.168.15...

Hi, I am running a Cisco 4500X with 16 10G Fiber ports and I have used GLC-T on the ports to conver them to ethernet. I am using following IOS. cat4500e-universalk9.SPA.03.06.04.E.152-2.E4.bin When I try to change the speed of the port it doesnt chan...

we have new cisco 3750X-24 switch, first time we boot this switch it boots normally then we access by using console cable after we put some commands, it become not responding no lights are on except PowerSupply and Fan lights, SYST or SYS lights are ...

Hello, host1 only has one single IP, no default gateway, no static route, no routing protocol, "no ip routing" is configured, why it can still access 1.1.1.1? please help. thank you.

Let's say you were building 2 Nexus 7700 series with HSRP, VPC and fabricpath.  You need a 10g line card for connected firewalls and you use a 40g line card for downstream 5k's.  Port density does not dictate buying multiple of either line card so on...

Hi All, I am noticing some unusual behaviour with multicast and IGMP. The Mcast topology is as follows Router01 ------Core_Router------ Primary_RP_Router(10.129.0.9.1) The config on router01 is !ip pim bidir-enableip pim rp-address 10.129.0.9 1 ...