Questions tagged [cisco]

The major provider of networking equipment. This is a generic tag to be used when no more specific tags are available. See the list of tags in Help Center Tag page.

Filter by
Sorted by
Tagged with
0 votes
1 answer
39 views

Build custom image for CISCO devices

Do CISCO devices support custom image building or deploying custom plugins? OpenWrt has such feature.
BrilliantContract's user avatar
0 votes
0 answers
44 views

Cisco: 9606R Switch Firmware update

I have updated my other Cisco 9300 switches, but am a bit confused on how to even select the right firmware for my Cisco 9606R Core. If I run sh ver it displays the following: Cisco IOS XE Software, ...
Rick151's user avatar
1 vote
1 answer
36 views

The TTL and packet drop [duplicate]

I would just like to verify one thing. When a router receives a packet with a TTL of 1, the router can still process and accept it if its destined for itself, correct? Because for example, eBGP ...
Mitrixsen's user avatar
  • 783
0 votes
1 answer
84 views

Looking for sanitized Cisco IOS XR configurations

I'm looking for someone who can answer with a sanitized Cisco IOS XR text configurations. These configurations will be used to test ciscoconfparse config parsing, specifically to start working on ...
Mike Pennington's user avatar
0 votes
2 answers
43 views

Setting FortiGate HA Firewall

I need some advice and guidance regarding setting up the FortiGate HA, My question is focused on WAN side of configuration (not A WAN expert), below are highlight environment 2 ISP WAN-A / WAN-B ...
KurdTech's user avatar
0 votes
2 answers
38 views

Interface is down/down but internet works

I am managing a network at my company. A patch panel provides connections to the switch, which is connected to the router. One of the connections on the switch does not display a blinking green light. ...
Jossie Calderon's user avatar
0 votes
1 answer
27 views

Disable the --more-- prompt in Cisco CLI

show startup-config: ! line con 0 login local length 0 line vty 0 exec-timeout 0 0 login local length 0 line vty 1 4 login local length 0 line vty 5 15 login local length 0 ! However I still get ...
Jossie Calderon's user avatar
0 votes
2 answers
51 views

How to apply a Route-Map to a NAT connection

I am following a tutorial about route-maps on youtube. https://www.youtube.com/watch?v=2YlsXcT1Pjw There is this topology. The default route on R1 points to 10.10.10.2 In the video he just shows how ...
mbrain's user avatar
  • 15
0 votes
1 answer
46 views

Configuring multiple public IPs in Cisco 881 to forward private IPs with tags while bandwidth balancing [closed]

The ISP is sending four tagged public IPs (VLAN 30) through one WAN cable. Currently, this cable is connected to a switch that recognizes the tag and distributes it appropriately. Naturally, a router ...
Wilhelmroentgen's user avatar
-1 votes
1 answer
36 views

Cisco VLAN Taking up Entire Subnet

I have a default vlan 1 that has an IP configuration of 10.20.11.0 with a subnet mask of 255.255.255.0. I have an AP 10.20.11.55 that I want to place on its own VLAN because I intend to make this AP ...
Jossie Calderon's user avatar
0 votes
1 answer
37 views

How do i add a gateway for a L2TP Tunnel?

Maybe the question title is kind of odd but i dont know how to describe my problem. I have this setup. [Client1]=eth1= --> =fa1/0=[ R1 ]=fa0/0= -- |...
mbrain's user avatar
  • 15
0 votes
1 answer
64 views

Cisco IOS Privilege Escalation Vulnerability Workaround

For this Cisco vulnerability that they have discovered it states that If the ip http server command is present and the configuration also contains ip http active-session-modules none, the ...
The Footsie's user avatar
0 votes
0 answers
27 views

Cisco switch ios update without change license

I need the following ios switches to be updated to the latest "license-free" version to fix vulnerabilities: C3560CX-12pd-S C3650-48PS-E C3850-12S-E C3850-24T-E C3850-12S I didn't find any ...
khatabakhshnadia's user avatar
0 votes
0 answers
85 views

Cisco nexus 9336-FX2 ETHPORT-5-IF_DOWN_LINK_FAILURE

I am seeing following error on 100G interface. (SFP bought from fs.com) nxos version 9.3.10 2023 Oct 11 00:41:12 spine-1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/4 is down (Link failure) ...
Satish's user avatar
  • 4,371
1 vote
0 answers
35 views

JunOS tagging aggregate route from more specific route - bgp communities

I have a certain use case with rtbh for the following: A /32 route (say 10.1.1.1/32) is injected into the network with a specific bgp community I'd like to match the aggregate prefix that /32 belongs ...
Network Samurai's user avatar
0 votes
0 answers
24 views

Need assistance with Cisco Firepower 5516X: Excluding a single IP from a specific Snort rule

I'm currently managing a Cisco Firepower 5516X device and have encountered a false positive for a specific Snort rule. Instead of disabling the rule for all traffic, I would like to selectively ...
Hsn Sah's user avatar
0 votes
0 answers
53 views

CCNA OSPF Loopback as the router ID

FYI, I am studying for the CCNA and new to this. The scenerio, 2 routers R1 and R2. R1 Loopback IP as 192.168.0.1 R2 Loopback IP as 192.168.0.2 Using the loopback IP's as the router ID. I provisioned ...
James's user avatar
  • 1
1 vote
0 answers
51 views

Globally raise IP ARP inspection limit rate on Cisco

I am trying to raise the ip arp inspection limit rate from the default rate of 15 on my Cisco 9300 since I am getting to many %SW_DAI-4-PACKET_RATE_EXCEEDED: x packets received in xx milliseconds ...
Rick's user avatar
  • 121
1 vote
1 answer
94 views

Cisco ports shutting down temporally due to arp-inspection

We have a couple of Cisco 9300 switches. We had the switch configured using STIGS. A couple users have complained that their Avaya phones restarted. I started running the show logs and noticed the ...
Rick's user avatar
  • 121
1 vote
2 answers
356 views

Cisco Console Port to 1 Port Ethernet Breakout

I was thinking about making it a bit easier to access the console port on a few switches deployed at work. Basically these switches are located top of rack above a KVM, and this makes accessing the ...
Richie086's user avatar
  • 243
0 votes
0 answers
50 views

MPLS labels for BGP prefixes

I've just started studying about MPLS and the labels it uses and this was mentioned in my study resource. When we use LDP on Cisco IOS, we locally generate a label for each prefix that we can find in ...
Mitrixsen's user avatar
  • 783
1 vote
1 answer
102 views

Why are 10.3(99w)F and 10.3(99x)F NX-OS named like that?

According to https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/nx-os-software/guide_c07-658595.html#TypesofCiscoNXOSSoftwarereleases the part in brackets - "99w" and "...
kK-Storm's user avatar
  • 113
0 votes
1 answer
50 views

Recover Aironet AP-ESC doesn’t seem to break c2602 boot sequence

I am trying to reuse an old Cisco Aironet c2602 Autonomous AP; I need to reset the password. CCO instructions say that I need to hit ESC repeatedly while I am on the console during the AP boot ...
Mike Pennington's user avatar
1 vote
2 answers
90 views

Inter-VLAN using L3 switch

There are 3 VLANs 10, 20 and 30 on these switchs. Everything such as VTP, DTP are working fine. The problem is that inter-VLAN seems not to work correctly. IP routing is activated on the L3SW (even ...
Gekko's user avatar
  • 27
0 votes
1 answer
51 views

Non VLAN Tagged Traffic Not Going Through Trunk Between Cisco Switches

Good day all. I am running through a packet tracer exercise and am stuck on where to go next. Forgive me if I am missing something obvious, I have not touched any cisco networking or networking in ...
cnrdvdsmt's user avatar
0 votes
1 answer
40 views

What is the recommended destination public IP for Cisco IP-SLA?

I want to implement Cisco IP-SLA, but I am not sure what the destination IP I should use. Any recommendations or advice?
Ahsan Khan's user avatar
0 votes
0 answers
12 views

Cisco WDS, FreeRadius and LEAP

Freeradius got rid of LEAP since some pointrelease of 3.2.x, and I'm stuck configuring Cisco WDS on their Aironet series. Since forever there was a tweak with LEAP in Cisco configuration like this: ...
drookie's user avatar
  • 243
0 votes
0 answers
23 views

Unable to connect to the router using ncclient on RedHat 9.0 on IBM PowerPC

I have a simple program using netconf client version ncclient 0.6.13 with Python3 running on PPC64LE Red hat Version Red Hat Enterprise Linux release 9.2 (Plow) which is using netconf yang to connect ...
Kuldip Nanda's user avatar
0 votes
1 answer
35 views

IPv6 subnetting with different end device requirements

`I have three main buildings with building A with 242 end devices, building B with 54 end devices and building C with 894 device. And all the routers are connected to each other like ring topology. ...
Anjil Khadka's user avatar
0 votes
1 answer
315 views

CISCO 9800-L Controller internal dhcp not working - GUEST WIFI

I have been trying to configure a guest network for my Cisco Catalyst 9800-L Wireless Controller for some days now. For the guest network, i want it to use an internal dhcp on the controller. I have ...
Amarnauth Persaud's user avatar
0 votes
1 answer
55 views

Cisco CP-7841 IP Phone backlight settings not working [closed]

I have a couple of Cisco CP-7841 IP Phones that are working otherwise well, but the backlight controls are not working. I would like to have the backlight off unless the phone is being used (IIRC this ...
ifoindecks's user avatar
0 votes
1 answer
78 views

The Use of BGP Communities

I am studying BGP communities at the moment. I understand that communities are path attributes which are a way of tagging specific BGP route advertisements in order to ensure proper route selection ...
Mitrixsen's user avatar
  • 783
1 vote
1 answer
35 views

RIP v2 Network Command

I am comparing the Boson ExSim Lab to the Neil Anderson's Lab on RIP. On one of the labs on Boson ExSim, it asks to configure RIP on the routers, all of which are on some form of a 192.168..0.0/24 ...
Gyd-4nc3's user avatar
0 votes
1 answer
62 views

Cisco Certificate CA Server and SCEP - adding RADIUS authentication

I am running a CA server on a Cisco ASR1k Router for several years. until now the number of SCEP clients is quite small (below 10) that it is possible to restrict SCEP Downloads by implementing a ACL. ...
Andreas Schaefer's user avatar
0 votes
2 answers
28 views

RMA'ed device configuration [closed]

Just wondering what are the methods that you use when re-configuring an RMA'ed device. Do you manually configured all the script that runs on the device or is there any efficient ways configuring the ...
dlareg28's user avatar
1 vote
2 answers
135 views

What Does Exactly Happen When A Switch Is Connected To A Portfast Port?

I am trying to get a thorough understanding of what does happen when a switch is connected to a portfast port on another switch that is part of a stable STP network in case of: 1- the port has no ...
Shadi's user avatar
  • 285
3 votes
2 answers
172 views

OSPF Advertise only loopback not transit VLAN

I have this topology: and this configuration: R1 interface Loopback0 ip address 10.0.0.1 255.255.255.255 ip ospf 1 area 0 interface GigabitEthernet0/0 ip address 192.168.0.1 255.255.255.252 ip ...
gaetano's user avatar
  • 399
0 votes
1 answer
44 views

logging host 1.1.1.1 on Cisco C9300

My Catalyst C9300s running IOS-XE have logging host 1.1.1.1 in the config by default. Is that because it is sending logs to it's internal logs store? I can't seem to find a straight answer in the ...
JukEboX's user avatar
  • 461
0 votes
0 answers
83 views

Why Fast Ethernet port in Cisco Packet Service is always down?

I built a simple network simulation with Cisco Packe Tracer. I am not able to understand why fast ethernet port Fa0/0 on server Gmail and correspondent port on Router2 are always down. I checked and ...
Giancarlo's user avatar
0 votes
1 answer
294 views

Cisco Nexus vPC Portchannel issues

I'm currently facing a network issue between Cisco Nexus 93108 (9.3.11) on an LACP port-channel configuration. The replica below help us to reproduce the issue we had (using 4x Nexus 9000v qcow2 image ...
motorbass's user avatar
  • 101
0 votes
1 answer
55 views

How to configure IDr on Cisco ASA for AWS IPsec tunnels

I am currently facing an issue while attempting to establish IPsec tunnels between AWS and a Cisco ASA firewall. The AWS tunnel logs indicate that the Identity Resolution checks are failing, ...
Ajit Trivedi's user avatar
0 votes
1 answer
637 views

Cisco NX-OS Factory Reset

An easy question actually. How do I do a Factory Reset on NX-OS? That means, how do I completely and permanently wipe all the configuration I've made without deleting the operating system image? There ...
user3975's user avatar
0 votes
2 answers
91 views

Can we have two logging source-interface configured on Cisco Switch?

I would like to understand if its possible for us to have two logging source-interface configured on Cisco Switch: logging source-interface vlan1 (For syslogs) logging source-interface vlan2 (For ...
Blake's user avatar
  • 57
1 vote
1 answer
323 views

Cisco interface vlan (shutdown vs no ip address)

What is the difference in functionality between these two commands. interface Vlan10 shutdown interface Vlan10 no ip address I haven't been able to find any source material, but I've seen other ...
Derrick Moeller's user avatar
0 votes
0 answers
23 views

Gain using single antenna on Aironet 4x4 MIMO device

I'd like to configure a CAP-3602E in order to use with a single element grid antenna. I assume that when I'm in full 4x4 MIMO mode (all antenna ports enabled), if I have Tx power set at 23dBm, each ...
KevinHJ's user avatar
  • 103
0 votes
1 answer
97 views

DMZ cannot send traffic to INSIDE (Cisco ASA 5505)

Have a nice day, everyone. I have a question while working with Cisco ASA 5505 firewall. I want to create a interface/VLAN for DMZ. To do this: int vlan 3 no forward interface vlan 1 nameif dmz ...
Gekko's user avatar
  • 27
1 vote
3 answers
81 views

Is there a comparable technology to Cisco's DTP from other network vendors?

Is there a substitute for Cisco DTP technology from other vendors? And if so, which ones? Didn't find anything on google.
Hanami's user avatar
  • 11
0 votes
1 answer
28 views

Web Access Certs No Secure Though It Is

I have a Cisco C9300 and I am securing the access to the web console to it with the HTTPS server. I created a trustpoint for our CA and imported the CA cert as well as created a certificate for this ...
JukEboX's user avatar
  • 461
1 vote
2 answers
557 views

Breakout from 400Gbps to n*25Gbps

My servers are currently have 25Gbps NIC, but switch ( Cisco Nexus 9300 series) has only 400Gbps. I would like to be able to break out the 400Gbps connection into four 25Gbps connections. Is this ...
Andy's user avatar
  • 115
0 votes
0 answers
31 views

cisco business dashboard probe scanning outside of given range

we're deploying Cisco business dashboard with dedicated probe server in our LAN. I've managed to make everything work, but one thing bothers me. I configured the probe managed network to only discover ...
FatalxE's user avatar

1
2 3 4 5
76