I have 8 3850 Cisco Switches that have a vulnerability that need to be fixed. The vulnerability is ICMP Timestamp Request Remote Date Disclosure. Essentially what I need to do is filter out the ICMP timestamp requests (13), and the outgoing ICMP ti...
Forum Posts
The equipment will be renewed in the event of a total power outage. At that time, we expect to install a generator or portable power supply to supply electricity. Specifically, I'm worried about generators and portable power supplies. And I am worrie...
Hello all,When I create a VRF on a router or L3 switch, am I creating just a separate routing table (like just a separate dictionary of routes), or am I creating an actual new routing process on the box ? So often in diagrams I will see VRF's represe...
Hi AllI am looking to purchase some 8300 routers with no licence limitations and also the HSEC licences.I have read the below but I'm a little confused.Cisco Catalyst 8300/8200 Series Edge Platforms Ordering Guide - CiscoWill we need to renew the DNA...
Hi,I am in the process of deploying a new network scenario as per the design outlined in the attached design document (design.png).Additionally, I have prepared a BGP configuration file (bgp configuration.docx) according to the diagram that I would l...
Resolved! Router
We have two switches connected to each other via AirFiber 5x HD. Should we configure the spanning-tree link type as point-to-point on the ports with the AirFiber connection?
Resolved! NAT
Hi ! student here preparing for the CCST networking exam . ( First post ) NAT is also a great tool to use when an organizationchanges its Internet service provider (ISP), but the networking manager needs to avoid thehassle of changing the internal ad...
Resolved! Cisco 2960 switch NAT
Hi all, I have a Cisco 2960 switch running IOS 15.2(7) E7. I configured NAT overload.Straight forward config:interface Vlan150description INSIDE-LANip address 10.150.0.254 255.255.255.0ip nat inside!interface Vlan192description OUTSIDE-LANip address ...
Resolved! IR9300 Issue on extended access-list
Hello, I have the below access-list that when working I have Internet connectivity on 10.252.92.1 host, but when I move 21 below the deny commands I cannot, it is like it is rejecting the permit. Could anyone help me why? To me it seems like a bug bu...
Hello, everyone! I'm operating a Cisco ISR 4331 Router loaded with IOS 17.06.06a and ROMMON 17.6.2. To get to the latest and greatest, I'd like to upgrade to IOS 17.12.3a. However, I read in another topic concerning upgrade procedures that going stra...
I am setting up a C1111-8PWA-WS for the first time. After not being able access the internal wireless card I decided to set up without it. I have a Cisco SG350-28P switch that has POE for the AP's. Trying to set up the basic unit with just the rou...
Resolved! Routuing
Hello every one i want configure this three router, every router in different subnet, how i achieve connectivity. thank in advance i know one solution VRF but i don't need currently use vrf, i want only connectivity config from R2interface GigabitEth...
flow record NETFLOW-RECORD-INmatch ipv4 protocolmatch ipv4 source addressmatch ipv4 destination addressmatch interface inputmatch flow directioncollect transport tcp flagscollect counter bytes longcollect counter packets longcollect timestamp absolut...
Hi All,We are redesigning the Management of of offices network devices.network is like belowVlan 300-----SW--10.1.1.1----------10.1.1.2 Router----WANwe will configure reverse static router for 192.168.1.0/24 in router.Option 1- User separate manageme...
Resolved! Trunk Port Switch to Switch
On a switch-to-switch interface, can we configure both of these commands at the same time, or can we only configure one of them?switchport mode trunkswitchport trunk allowed vlan allinterface GigabitEthernet1/1/3description ****Uplink-Block-Switchswi...
