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For questions specifically related to the software Packet Tracer developed by Cisco Systems. This tag should only be used in relation to the actual functions in Packet Tracer, for instance: network troubleshooting, designs and configurations.

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1answer
46 views

Vlan cannot get DHCP address from using Router and L3 Switch

Simplified diagram of a larger network, but I'm having trouble getting DHCP from the router. Going into simulation mode in packet tracer, I'm seeing an error on the layer 3 switch saying "There is no ...
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1answer
28 views

Is there a way to get Packet Tracer to generate a label with device settings?

In Packet Tracer I create my labels manually, IP: 192.168.1.5 SM: 255.255.255.0 GW: 192.168.1.1 Is there a way to get Packet Tracer to generate a label like that, so I don't have to type it in for ...
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1answer
37 views

RIP Routing for subnets within the same class C network?

I'm trying to setup a network with 3 subnets like this (mask is /26): First 192.168.20.0-64 Second 192.168.20.65-128 Third 192.168.20.129-255 First, I'm just trying to connect the first 2 with fiber ...
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1answer
51 views

I want to ping from pc 192.168.1.2 to pc 192.168.2.2 but i am not able to do so. Can someone tell me my mistake

The network is able to ping from pc 192.168.1.2 to router interface 192.168.3.1.
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1answer
36 views

Can I connect a PC to a router directly in Packet Tracer?

I am attempting to learning CCNA on my own and I have no experience in networking prior to this. I tried to connect a pc and a router (generic router) in Packet Tracer directly but the link between ...
1
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1answer
57 views

Show interfaces brief information

In packet tracer if you hover over a router you will see its interfaces with IP addresses, vlans, etc. However during my CCNA exams (during the troubleshooting) this feature is disabled. Is there a ...
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0answers
156 views

WLC & VLANs - Packet Tracer

I'm trying to learn more about WLC configurations using packet tracer. I know Packet tracer is very limited for this kind of exercise, but I just want the basic, so it's enough. Here is the network: ...
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0answers
26 views

PPP with CHAP authentication on a VPN

I have 3 routers on which i need to implement PPP with CHAP authentication. I have applied a VPN and the routers are working. Router1 and Router3 can ping each other, but not Router2 (ISP). On which ...
-1
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1answer
45 views

Router IP between networks of different classes

I have 2 networks that I want to ping each other, one of the networks uses class B 172.16.16.0/19 and the other network is class C 192.168.0.0/26. Both networks have their own subnets and vlans, and ...
3
votes
1answer
80 views

Multiple access lists on same vlan

I have 5 departments each with it's own vlan and i want some of them to ping some of them, and only want some of them to ping some of them back. Basically creating a hierarchy of vlans. Concretely, ...
3
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1answer
66 views

Access lists on vlans possible?

I have a building with some departments and each department has it's own vlan and subnet. so now all departments can communicate with each other, but i only want some of them to communicate with some. ...
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1answer
33 views

Are routers necessary when using vlan [closed]

Redesign the headquarters network. In that building are currently 200 hosts divided in 5 departments (financial, administrative, IT, others and CEO staff). Each of these departments needs its own ...
1
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1answer
63 views

How to create vlan for admin?

I wanted create a separate vlan for admin and give access to other vlan , so what is the procedure or method to do it?
1
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1answer
45 views

Packet Tracer help, dropped packets and connectivity issues

I have set up a network with 3 offices on 3 different subnets. File available at, https://github.com/turntheairblue/packetTracer Router configuration is as follows, R1 - Router R2 - Router R3 - ...
0
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1answer
38 views

Do packets travel through household routers or only designated ones? [duplicate]

I'm trying to wrap my head around the path the packets take on the internet. I know that they hop between multiple routers until they get to their destination, but are these routers only in ISP's ...
1
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2answers
66 views

I CAN'T ping PC7

So... I have a set up as below. I ping PC7 from the router. obviously an ARP is sent to determine PC7's MAC address. but it doesnt work. i then decide to set packettracer to simulation mode. i ping ...
2
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2answers
249 views

Can't ping Router from vlan 2 or 1 or between vlans

This is driving me nuts. There are 2 vlans on the switch( vlan 20 and 21.) one trunking port g0/1 and thats connected to a Router On A Stick. I CANT PING DIVINCES ON SEPARATE VLANS NOR THE ROUTER FROM ...
2
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2answers
99 views

Understanding Cisco standard access lists (Packet Tracer example)

Consider the following example: I have two networks (192.168.1.0 and 192.168.2.0) with one PC in each network (PC0 - 192.168.1.1 and PC1 - 192.168.2.1) and a router R0 with 2 interfaces connecting ...
1
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3answers
126 views

Can we run Linux guest OS in Cisco Packet Tracer?

I've been using VirtualBox, and GNS3 for a while and recently I found out about Cisco Packet Tracer. https://en.wikipedia.org/wiki/Packet_Tracer I've downloaded it and it seems like this tool is ...
0
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1answer
199 views

How can all devices connected to the router be in the same subnet? [closed]

I have understood that router is a networking device, used to connect multiple subnets. And it does the job of routing the packets from one subnet to another subnet. As depicted in the below topology- ...
2
votes
1answer
173 views

Unable to enable “Directed broadcast” on router in packet tracer?

I have a topology like below, wherein 2 subnets with address 192.168.0.0/24 and 192.168.1.0/24 are connected to a single router, Router0. Now i want to send a directed broadcast from PC0 on subnet ...
3
votes
1answer
123 views

How would I configure etherchannel for this particular topology?

How would I setup and configure etherchannel from switch0 to all the other switches? Switch0 has been configured as the root bridge, Router0 has been configured to be the gateway for each Vlan and as ...
4
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5answers
636 views

Why can't two hosts (in two different logical networks) connected to each other through cross-over cable communicate?

Let us say, i have two computers (hosts) A and B. Where A has been assigned an IP address of 192.168.1.10/24 and host B has been assigned an IP address of 192.168.2.11/24. And both of them has been ...
3
votes
2answers
161 views

OSPF - Default route doesn't get advertised to all areas

I am trying to find the reason why R1 doesn't have the default-route, propagated and generated by my Internet-PAT-Router, in his routing-table. The weird thing is, that R2 actually has an entry for ...
1
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1answer
43 views

Extended ACL not working with “host”-Attribute in Cisco Packet Tracer

Here's the output (or the commands) which fails: Normally it should work! What's wrong here?
3
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2answers
384 views

OSPFv3 (newer commands) not working in Cisco Packet Tracer

The command router ospfv3 1 is not working in the Cisco Packet Tracer (Router: 2811). Does it work somehow or are the IOS version just not up-to-date?
2
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2answers
65 views

Two router connected directly can't ping each other

Just for practice purpose i've created an network on Cisco packet tracer like this. But i am not able to ping router 3 from any other devices. Below are the configurations on each devices. Router 3:...
2
votes
1answer
406 views

Can't use “dot1x” command in Cisco Packet Tracer

I am trying to configure 802.1X authentication on a Cisco switch 2960 in Cisco Packet Tracer software. Here I found the offical guide: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/...
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3answers
62 views

Computers on second router network not contacting with current router

I'm using Cisco Packet Tracer, computers on the same network can contact easily with each other, but when I send message from a network computer to the other, i get a FAILED message. Configuration ...
1
vote
1answer
275 views

Packet-Tracer multiple IPs for a PC

I searched for a way to configure a PC with multiple IP addresses in Packet Tracer but i found nothing. I read that you can use the command netsh on Windows to create virtual interfaces. I've tried to ...
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2answers
463 views

Address of the router interface in subnetting [closed]

I've been given a Class C address, let's say 192.10.20.0. I have a topology of 4 routers, each with a serial connection to two of the other routers (like a square). To each router is connected two ...
1
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1answer
138 views

Can not receive DHCP request from different VLAN

I've been faced with this. I've set up a DHCP pool at the server with the following configuration: pool-vlan20 default gateway: 192.168.2.1 start ip: 192.168.2.100 The router has been set up as the ...
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0answers
2k views

IP PHONE in packet tracer 7 'Configuring CM List'

I have Layer 3 Switch which is doing Inter-VLAN Routing for both my DATA VLAN and Voice VLAN. I have set my Voice VLAN to get IP address from DHCP server which is in another subnet. I have also ...
2
votes
2answers
264 views

Can't get DHCP to work in Spanning Tree

I'm not entirely sure what I'm doing wrong. I configured the inter-VLAN routing from the main router with the IP addresses I used as default router for the DHCP pools I also set in the main router. I ...
0
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2answers
1k views

How to Deny a whole subnet

So I have two subnets: Subnet 1:200.190.64.0/28 which is connected to router 2 Subnet 2:20.10.96.0/21 which is connected to router 1 Both of these routers have another networked connected ...
1
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1answer
81 views

Not able to get a trunk between router and distribution switch to succeed

I couldn't get a successful ping from the router to the distribution switch Distribution Switch Dist_Switch#sh ru Dist_Switch#sh running-config Building configuration... ...
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votes
2answers
138 views

Feeling lost troubleshooting Trunk and STP configurations on Packet Tracer

I couldn't identify the mistake or what I have missing in the configuration on this network, if anyone of you is welling to check it out this is the link PacketTracerFile I could not ping from any PC ...
0
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2answers
93 views

Trying to get DHCP to work in a VLAN

I am trying to get DHCP to work on a VLAN. I have 3 VLANS and they are .10, .11, .12. .11 and .12 are working fine, they are getting ip addresses and their corresponding gateways from the DHCP ...
2
votes
2answers
113 views

Trying to get DHCP working across three VLANs

I have a packet tracer file with 3 switches and 3 VLANs for a school. It is divided up into VLAN 10, 11 and 12. VLAN 10 is for classrooms 1 and 2, VLAN 11 is for classrooms 3 and 4, and VLAN 12 is for ...
1
vote
2answers
731 views

DHCP Server giving the wrong IP address and DHCP server failed Apipa being used

My problem is when I'am trying to use DHCP server to give out IP address the Ip address that it gives away is the default gateway of the DHCP server and it only gives ip address to a single PC the ...
0
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3answers
4k views

DHCP server for multiple VLAN's

Good afternoon, I'm learning how to build a network, and I'm trying to add a DHCP server for all VLAN's, but I don´t understand how to make it work for all hosts regardless of whether they are on the ...
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0answers
176 views

Divide a network into vlan

I'm doing a practice with packet tracer, in which I get the IP 192.168.10.0 / 24 and they ask me 3 VLANs 10, 20 and 30; With 50, 120, 200 hosts respectively. My questions are: Do I need to change ...
2
votes
1answer
2k views

Fiber-optic connection between two routers is always off, regardless of any configuration

I have modeled the following network on packettracer. The fiber-optic connections between Router4 and Router8 is down and doesn't get up. Whatever I do, the connection remains off. The source file of ...
0
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1answer
827 views

Understanding how spanning-tree protocol (STP) works, along with CDP and DTP

I have made the following simple network model on packet-tracer consisting of two laptops and a switch. I don't do any configurations on laptops or switches, the only thing I do is connecting them ...
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1answer
545 views

Setting up router as a DHCP server on packet tracer for a 2811 router and 3 hosts

I am trying a configure a 2811 Cisco router on packet tracer to be a DHCP server for 3 hosts. Here is the running config I have as of now: Building configuration... Current configuration : 657 ...
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2answers
91 views

When using Telnet, why it doesn't ask for the password?

The first thing the prompt asks is the console's password. Shouldn't it be asking for the telnet's password first? Below is the code. line vty 0 4 password LINE login AFAIK, "login" isn't needed, ...
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votes
2answers
515 views

All OSPF routes lost when interface fails

I mounted a ring network with ospf with the topology that follows. What is happening is that I disconnect an interface (Fa5/0 R1) to verify redundancy and the two routers (R1 and R4) involved lose ...
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2answers
885 views

Laptop in a WLAN not pinging to any wired interface and vice versa

I have this scenario where the laptop must be able to ping every interface and vice versa and I am not able to understand how to make the Laptop ping the router and other interfaces ? The PCs can ...
0
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0answers
2k views

configuring a cell tower with a CO-server and a 2911 router (packet tracer7.0)

I want to configure a CO server to connect to a tower and to a Cisco 2911 router (on which I'm going to configure IPv4 to IPv6 NAT), where the CO server should provide connectivity to devices that ...
1
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1answer
50 views

How do I use the same subnetwork on multiple interfaces if the computers on the VLAN are distributed among them?

The configuration I want to achieve is for learning reasons, in Cisco packet tracer, not a real-life scenario: I have one router and two switches connected to them. Each switch has multiple computers ...