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Questions tagged [cisco]

Cisco is a provider of switches and routers to commercial consumers. Cisco devices run IOS or NX-OS operating systems. This is a generic tag to be used when no more specific tags are available. See the partial list of tags in the full Tag Wiki.

Cisco is a provider of switches and routers to many medium and large companies. Cisco devices often run IOS or NX-OS operating systems.

Since Cisco acquisition of Linksys, the consumer line of switches, firewalls and routers (which do NOT run IOS) have been rebranded under the Cisco name.

This tag is a generic tag - Wherever possible a more specific tag related to the product you are using should be used instead. For example:

, , , , ,

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TCP Retransmissions when packets exceed 1500+

I am currently trying to communicate using NMOS protocol over my network. This is a /30 network. The issue I am seeing is that when I send an http request from my computer to my device over the network the response will be "lost" if the packet size…
RAZ_Muh_Taz
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Unable to establish GRE tunnel between linux-based instance and Cisco Router

I would like to establish a GRE Tunnel connection between a Cisco CSR1000v and an EC2 instance that runs Ubuntu 18.04.02 LTS Linux 4.15. In R1 CSR1000v the configuration is the following: interface Tunnel99 ip address 10.10.10.2 255.255.255.0 …
Khalil Mebarkia
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how to take backup of the MDS 9000 series switch configuration

How do i take the backup of the MDS series switch .Like after doing the Zoing and activating the zone set.How do i save my changes done so that there is no impact in the production in case of any wrong zoning?? Will appreciate if somebody can tell…
wildchild
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Verizon VPN to AWS VPC

I was wondering if Verizon can terminate their VPN to AWS VPC ? Our existing setup has Cisco Router (CSR1000V) running on EC2 instance and Verizon VPN is terminated on the public IP of the EC2 instance. That's how the Verizon traffic enter AWS VPC.
roy
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Cisco Catalyst - plugging in a switch on an access port take down a far-away port channel

I have made a diagram at this pastebin - basically i have a production network with a pair of 6840 as my core (VSS), it has port channels to various systems. I do not use any routing protocols, VTP is set transparant across the board, and rapid…
Stokkeland
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Grok filter for Cisco ASA

How can i get port from cisco ASA syslog using grok pattern. I have tried some methods and its not working . We are using graylog for collecting log data. Eg Log : %ASA-6-301014: Teardown TCP connection 1846898154 for Vodafone:107.23.89.178/443…
James Arems
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policy-map apply using Linux Centos

In Cisco i can found this object-group network XYZ 10.10.10.0 255.255.255.192 object-group network ABC 10.10.11.0 255.255.255.192 class-map match-any C-XYZ match access-group name XYZ class-map match-any C-ABC match access-group name…
Tariq
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How to attach EC2 instance to a Cisco Router in order to send traffic

I would like to attach (route) EC2 Linux-based instance to a Cisco Router XRv9000v IOS XR 6.3.1 in order to send traffic. In the picture above, the EC2 sends traffic to R1 either outside or within VPC.
Khalil Mebarkia
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Cisco ACE - one armed load balancing with SNAT

Does anyone have a simple example of a Cisco ACE (6500 blade or 4710) configuration for one-armed load balancing with SNAT? I have a load balancer in one data center that I want to LB for servers/services in another. I found the following…
Peter
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Implementing Segment Routing Traffic Engineering (SR-TE) in IOS XR 6.3.1

I'm trying to deploy SR-TE on XRv9000 routers IOS XR 6.3.1 version which are deployed in AWS according to the topology below. I have accomplished the configuration of SR on all routers which is based on the official tutorial Cisco's official SR…
Khalil Mebarkia
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New Cisco SG350X changing config of SG500 switches

We have about 20 Cisco SG500 Switches in our network configured with various VLANs, trunks, ports etc. We recently needed to install additional network capacity so purchased some SG350X switches as the SG500s are end-of-life. Whilst getting the…
Phil
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CISCO IOSXE 16.9.2 radius key type 9 encryption?

I get a warning When I try to configure radius on a CISCO Switch 9300: Cisco IOSXE [Fuji], CAT9K_IOSXE), Version 16.9.2, RELEASE SOFTWARE (fc4) Warning message once I add the Radius key: WARNING: Command has been added to the configuration using a…
KCJ
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PHP landing page on Apache server Cisco WLC controller

I have a landing page done on php along with SQL database for WIFI user registration along with Cisco wireless controller. The WLC is redirecting the user to the landing page for authentication / registration. The user logs in successfully but the…
medhatelashry
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Can I limit bandwidth for certain IP address, subnet or VLAN on Cisco 881?

I have a router with several workstations running on the switched ports. I need to limit their WAN bandwidth. I tried to use rate-limit on Vlan1, but it looks like it had no effect. What is the easiest way to achieve this? I am not very good at…
Hivemaster
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PoE network (Sonicwall + Cisco) resets when Polycom SIP phones register

We use Polycom 335 and 550 SIP phones in our office and a mix of Sonicwall, Cisco, and Unifi hardware. We're switching SIP providers. Whenever we update any phone's boot server and have it register with our new provider, it works, but for 2-3…
Matt
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