Network Engineering Stack Exchange
Network Engineering Stack Exchange

Most Popular

more tags
1500 questions
6
votes
0 answers

Cisco nexus 9396 rebooted with reason xbar_client

Today my one of cisco nexus 9396PX switch got rebooted and this is what i found, based on following logs what could be wrong? We don't have Cisco support for this switch, trying to see if i can get help from community otherwise last option is…
Satish
  • 4,361
  • 12
  • 67
  • 120
6
votes
1 answer

VPN client to multiple locations simultaneously

I need to connect to 15+ locations to run network scans weekly. All the locations have Fortigate firewalls over which I have full control. The current solution I have is to connect via IPSec VPN to each location one by one to run my scans. I have…
freb
  • 163
  • 1
  • 5
6
votes
2 answers

Change Ping Response for Traffic Blocked by Access Control List

I am trying to ping a host, let's say 10.1.1.1, from 20.1.1.1. I have created the ACL: R1(config)#access-list 1 R1(config)#Deny 20.1.1.1 R1(config)#Permit any R1(config)# int s0/0 R1(config-if)#ip access-group 1 in Never mind the configuration, I…
user3146180
  • 153
  • 1
  • 2
  • 9
6
votes
2 answers

APIPA and LAN Broadcast Domain

I just want to know can a Local Area Network broadcast domain be operated by only relying on APIPA?
Pooja Rajput
  • 61
  • 3
6
votes
5 answers

Reset admin password on Fortinet FortiWiFi 60D

I've tried to log in to this device by doing the following. Default credentials username: admin password: Maintainer credentials in the FortiExplorer console interface. username: maintainer password: bcpb + serial number Holding the reset…
Nick C.
  • 63
  • 1
  • 1
  • 4
6
votes
3 answers

Why do all the intermediary routers need to run iBGP without tunneling?

I'm trying to understand the configuration behind iBGP - I understand you can run full mesh to prevent loops, run confederation or route reflectors, if you don't want full mesh, else run tunneling like GRE or MPLS for BGP free core. However what I…
JuniorPenguin
  • 91
  • 6
6
votes
1 answer

What does routing an IP address mean?

From https://stackoverflow.com/a/40189197/156458 Blocking 0.0.0.0 makes no sense. In IPv4 it is never routed. What does "routing" a IP address mean? Why is it the reason that blocking 0.0.0.0 does not make sense? Thanks.
Tim
  • 1,535
  • 13
  • 26
6
votes
1 answer

Can non-recursive BGP route be used to determine next-hop for recursive BGP route?

In BGP recursive scenario, the recursive route is taking an unexpected next-hop. Here is the routing table: S* 0.0.0.0/0 [10/0] via 10.10.10.1, wan B 172.16.5.0/24 [20/0] via 172.80.80.1, MPLS, 2d18h20m B 192.168.250.0/24 [20/0] via 172.16.5.1…
onlyforthis
  • 163
  • 4
6
votes
2 answers

VLAN Interface is down, protocol is down

I have Cisco Layer 3 switch with IP routing enabled on it. I have different VLANs configured on it and its working perfectly. Now i have added another VLAN (SVI) and assigned that VLAN to one of the port , but VLAN interface is still showing…
Junaid
  • 163
  • 1
  • 1
  • 5
6
votes
8 answers

What do the positive and negative (+/-) transmit and receive pins mean on Ethernet cables?

So I'm trying to understand the pin layout of an Ethernet port, specifically for 8P8C which to my understanding is the most common. Of the eight pins, only four are apparently used for communication, as depicted below where pin 1 and 2 are TD+ and…
haxonek
  • 63
  • 1
  • 1
  • 5
6
votes
1 answer

Bandwidth limit Cisco 3400 ME problem

I want to limit bandwidth (speed) of interface of Cisco 3400 ME switch. I did these: policy-map parent class class-default shape average 64000 And in gi0/2 interface I apply it: service-policy output parent It gives me this error: QoS:…
it dev
  • 203
  • 1
  • 5
6
votes
3 answers

Is there a way to test TRILL in a virtual lab?

I don't have access to devices to run TRILL for testing and learning purposes, so is there a way to set-up a virtualized lab to try it ? What would be the virtualisation system, the vendor, the software, the version...
Benjamin A.
  • 1,687
  • 2
  • 15
  • 27
6
votes
3 answers

Are network protocols and routing protocols different things?

When reading about network protocols it says they are a set of rules and format for communication between devices over a network, so basically an agreed way of how to communicate over a network. But then I came across routing protocols which are…
The_Bear
  • 515
  • 1
  • 5
  • 11
6
votes
3 answers

Can I announce prefix 161.117.25.0/24 even though I don't have all of /24 IPs?

I'm managing one BGP router, under the router I'm trying to announce the following IP prefix:161.117.25.0/24. But the problem is that some of the IP addresses were borrowed by other AS(Autonomous System), for example the IP address 161.117.25.100…
Jack
  • 317
  • 2
  • 8
6
votes
2 answers

How to display entire MAC address table on HP switches

I want to display the whole MAC address table without needing to press 'space' for the next page, so that if there are 50 entries in the table I'd be able to view them with a single command. I'm working on an HP switch.
user19215
  • 313
  • 2
  • 8
1 2 3
…
99 100