Hello everyone, I have a network of two hosts, connecting to a Catalyst 3650 switch, which connect to outside network.The two hosts can ping each other, have known IP address (172.16.11.x) and same subnet. However I am not able to ping the host from ...
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In audit observation find Vulnerability issue and need to resolve this.Switch Model : WS-C3750V2-24TSSwitch Version : c3750-ipservicesk9-mz.150-2.SE11.binVulnerability : Nessus Plugin ID:71049 (Disable MD5 and 96-bit MAC algorithms)https://www.tena...
hello cisco what is best configuration of spanning tree on the following types of ports?1 - access ports- dedicated/isloated VLAN for iscsi traffic - should i disable ?2 - trunk port - connected to other switches - should i disable ? thanks,
I am trying to reset the Cisco Switch 3850 to factory settings due to not knowing the password for the switch. Last system administrator of my organization did not record any credentials and when i joined I didn't have enough time to ask him for the ...
Protective Boot on Certain Network Cables Might Push the Mode Button and Cause an Unexpected Resethttp://www.cisco.com/en/US/ts/fn/636/fn63697.html
Hi guys, Im really struggling to get this working.I just want remote SSH to my 3850 switch via its management interface yet I cant get it to use damn local authentication no matter what.The Cisco DOC's appear wrong as the commands just dont work. I h...
I'm using GNS3 with VIRL images (vios_l2-adventerprisek9-m.vmdk.SSA.152-4.0.55.E). I'm trying to understand the behavior I'm seeing. It almost seems like it's a fluke with the emulation. I've posted over in /r/ccnp (found here) and I've gotten a bit ...
Hi, I have an issue with Mitel ip phones on my lan. Each switchport which has a phone connected to, shows a high output drop count, and doing a "show controllers" indicate high Excess Defer frames. Users have problems with call transfer, and crappy s...
Hi-I'm not sure what I'm missing here but I've successfully loaded a new IOS (c2960-lanlitek9-mz.152-4.E6.bin), changed the boot statement, confirmed the next boot and then reload the switch. After reload it still winds up loading the previous IOS (c...
I'm running into a weird issue with a few CSR1000v routers running on ESXi 5.1. I've created 10 VMs and of those 10 instances, I have 1 router that seems to insert an extra line (or carriage return) in the CLI whenever I hit 'enter'. This issue has...
If anyone has a working ERSPAN config between two nexus 7k switches or between two nexus switches, can I take a look? I seem to be having some difficulties configuring it, and the source monitoring session refuses to go up. Thanks!
Hello!Jan 19 20:57:46 MSK: %SIBYTE-DFC3-4-SB_EXCESS_COLL: Excessive collisions on mac 1 (count: 263)Jan 19 20:57:46 MSK: %SIBYTE-DFC8-4-SB_EXCESS_COLL: Excessive collisions on mac 1 (count: 268)Jan 19 20:57:46 MSK: %SIBYTE-DFC7-4-SB_EXCESS_COLL: Exce...
Hi, I have using a switch cisco 2960s-48ts-l. the cpu utilization of the switch more than 95% every times. There is no dynamic arp inspection in enable but still HULC DAI process about 45%. How to stop this ? thanks debabrata
Resolved! 1:1 static NAT vs port forwardng.
Hi all, I understand NAT is taking 1 internal IP, translating it into a routable public IP to the internet when going out of the router public facing interface.While port forwarding is more for incoming traffic, whereby access to a pubic IP's port is...
I have a 2960X POE switch that I have used to isolate a server. I am using an ACL to limit user access to it and also have a backup appliance that needs to connect to the server to keep the backup's up to date. BUT... the backup server keeps losing c...
