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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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Can I make cisco router to act like a radius server?

I need to configure local radius authentication on my cisco router. I have web application in which we have implemented dual factor authentication it works fine with other radius server like freeRadius. I managed to send Access-Request to the cisco…
ananetworking
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Port 8089 is blocked

I am trying to Port Forward 8089 and I am having quite a bit of trouble doing so! Looking for a possible hint at what I am doing incorrectly... I myself tried setting this up a number of times then a 3rd Party Network Guru also took a look at this…
Alex
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How to use Linux DHCP server to issue static addresses to VPN Pool?

I am having trouble figuring out this setup. I need 4-8 clients to connect to my location via a VPN using a Cisco RV345.I will also use a Linux DHCP server for issuing IP addresses. The reason I have chose to use Linux as the DHCP server rather than…
CAP
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Cisco 2960-x doesn't ping default-gateway and creates duplicate packets

I need someone's help I have 3 Cisco 2960-X distribution switches stacked (1 master, 2 slaves), Once a week, our monitoring system alert us that the switch is down, until we reboot it. I ping/telnet the management interface (from the same VLAN). But…
benbelo
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Problems SSH authentication in AWS

I'm running docker Yang Development Kit for python ydk-py in my remote Ubuntu server. I would like to establish a connection using with the remote server and my AWS EC2 instance that runs CSR 1000v (SSH authentication) Before hand, I used to access…
Khalil Mebarkia
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Cisco Switch: Limit mgmt access to specific VLAN

I want to limit the access to the management console of my cisco switches. My idea was to only allow clients of a specific vlan to access it. In my current physical setup I have three unstacked cisco sg500x that are connected via sfp+ and fibre and…
Kenny Blankenship
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How to route differently, with default route in place?

I have a setup as below: PC A --> Microtik --> C3750 --> ISP router Both Microtik & C3750 is configured with 0.0.0.0 0.0.0.0 ISP IP static route. This means that traffic from PC A will go to microtik, then C3750 and finally to ISP IP before going to…
Jun10r
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Is it necessary to create a client to gateway VPN tunnel for QuickVPN users on the RV082?

Using the Linksys/Cisco RV082 router, is it necessary to create a Client to Gateway tunnel if all of the remote VPN users will be using Cisco's QuickVPN client, or can you simply configure the QuickVPN clients using the VPN Client Access page and…
Matthew Rankin
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Does OSPF routing protocol works in AWS?

I'm having troubles with finding the neighbors after the IPIP tunnels configurations where I have 4 VPCs and deployed there 4 CSR routers (for more details about the configuration, I posted yesterday in Network Engineering section OSPF over IPIP…
Khalil Mebarkia
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I lost ssh connection to my instance CSR 1000v AWS

I erased the configuration of my CSR 1000v bu using the CLI command wr erase and there reload. After that, I lost the SSH connection. I was not able to connect to the instance even though it has a public IP and DNS. It always asks me a password…
Khalil Mebarkia
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cisco 4948 IGMP flooding on all ports

everyone Having trouble with multicast on cisco WS-C4948-10GE (MPC8540). I have two switches running: System image file is "bootflash:cat4000-i5k91s-mz.122-25.EWA9.bin" and System image file is "bootflash:cat4500-entservicesk9-mz.122-46.SG.bin" Both…
Tomato
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How to create interfaces for CSR 1000v for GRE tunnels?

Well, my idea is to connect to 4 CSR 1000v routers in different VPC (without VPC peering). I've basically finished with everything with the pre-configuration creating VPCs, subnets IGW, modifying Route Tables ... etc. Then, using IPsec over GRE…
Khalil Mebarkia
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Can't find Cisco CSR1000v image for deploying in GCP

I would like to deploy Cisco CSR1000v on VM instance but I cannot find it among the OS images in GCP, neither custom images and marketplace. I'm following the tutorial below:…
Khalil Mebarkia
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How do I exclude return traffic from my ACL?

I have this network topology. What I try to achieve is: Deny access from Network 172.28.224.0 to Network 172.28.226.208. But the other way around it should work. 172.28.226.208 should be allowed to access 172.28.224.0 I have tried it with the…
Manu922222
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How can I disallow access to a specific ip within a LAN?

My Network topology looks like this: PC1------- PC2-------Switch--------Router-PT PC3-------2960-24 PC4------- What I try to accomplish is: No PC is allowed to ping PC3, but PC3 is allowed to ping every PC. Do you have any suggestions? Can I…
Manu922222
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