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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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Tag/Trunk Cisco 350x

I am pretty new on the networking and cisco world. As far as I learned, tagging is just assigning a port to a vlan, and, as per definition, trunking is assigning a port to more than one vlan I am trying to trunk a port on a couple of vlans and that…
jolek78
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cisco routing with multiple public ips, OSPF and NAT not working as expected

We've got multiple routers in our organisation and i can't get routing working as expected. We have a limited number of public ip addresses which I will call 100.x.x.x/28 We have internal address space 172.16.x.x. Each router owns a /24 block for…
ossentoo
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Why doesn't QuickVPN on the RV082 work anymore?

Anyone know why users who were able to access the VPN on a Linksys RV082 router via the QuickVPN client would no longer work? Below is a screen shot of the error message that users are receiving. We've tried this with three different users, and…
Matthew Rankin
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Ubuntu 18.04: Can't SSH into server's VLAN interface from my Cisco router

I recently configured VLAN interfaces on my relatively new Ubuntu 18.04 server which has two physical interfaces: eno1 and eno2. I have configured them using the netplan utility. My goal is simple: to be able to SSH from the gateway (a pair of…
David00
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How to move multiple, random ports to a vlan on a cisco switch

I'm very new to Cisco networking. We had a Cisco engineer set up vlans on our network switches and then gave us instructions for moving our existing ports to the voice vlan he created. I've moved about 10 so far, but it takes a while doing one at a…
43rdworld
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Cisco SG500X 10G-capable SFP+ port up at 1000Mbps

I am not an expert using SFP. I got a Cisco SG500X L3 switch with 4 SFP+ 10G ports. I got 2 mini-gbic HP AJ718A (8Gbps) and 1 fiber (HP 3PAR-10G-10M 850-200029 10Gbps). I plug the fiber into XG1 & XG2 ports (I know it's a loop but STP is enabled),…
Baud
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Loopback interfaces is not pinging on both pcs for packet tracer

I am trying to ping my isp ip address (aka loopback 1) and loopback 10 to PC1 and PC2. Whenever I ping both ip addresses and default gateway from pc1 to pc2 it works. However, when I'm trying to ping my isp ip addresss (1.1.1.1) and loopback 10 ip…
Kevin
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Configure VPN Gateway on Ubuntu VM

First of all, my understanding on the subject is very limited. Im trying to use an Ubuntu VM as a VPN Gateway for my other devices on the same network. The VPN uses the Cisco Anyconnect VPN Client. The network configuration is as follows: A TP-Link…
Sebastian Ampuero Morisaki
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Does factory reset for Cisco ASA 5505 keep the added licenses/features?

I bought a used Cisco ASA 5505 with existing SecurityPlus (and other) licenses already installed. A factory reset (configure factory-default) from the console will reset just the config and not erase the added license keys, correct? I don't have…
Peleion
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ASA5506 VPN Client Blocked

I am setting a new CISCO ASA5506. I am testing a CISCO VPN Client, IPSec/UDP, and it is being blocked. I'm not even prompted for a credentials. The VPN Connection works just fine from another network in our office and I've used the VPN Connection…
manit
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cisco license install tftp no response from tftp server

I am trying to install a license through tftp in the CLI of a Cisco 2504 controller. My computer is a Mac Pro running Mojave version 10.14.6. I have enable the tftp server on my mac. When I do netstat -na |grep \*.69 I see the following: udp4 …
jimboweb
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Cisco AnyConnect weird interaction with ethernet (DNS?)

We use Cisco AnyConnect Secure Mobility Client (Version 4.7.01076) at our company. Often in the morning after starting the AnyConnect client, I get a weird state with DNS on my setup. The most user visible effect (symptom) is the ping command: The…
malat
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Activate license on cisco wireless controller

I have a Cisco Model 2504 wireless controller. I currently have 7 access points using the controller. I have purchased a new wireless access point, model AIR-CAP3702I-A-K9. I purchased a license to add the controller. I added the license using the…
jimboweb
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Is there a way to check the interface link up / down on the Cisco ASA?

Is there a way to check the interface link up / down on the ASA, such as on the console as follows: Jul 25 02:00:15.268: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to up Jul 25 02:00:17.903:…
dum0785
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Changing subnet mask to /23 from /24 on local network

I have a 255.255.255.0 subnet mask (/24) can I change the subnet mask to 255.255.254.0 (/23) and not affect the hosts? The hosts are hard coded with no DHCP in this scope. Will I have to change the network settings for each host after I change this?
rjmend
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