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Questions tagged [packet-tracer]

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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Encapsulation overlapping issue in Vlan Router settings. How do i solve it?

How my setting looks like in the picture I use the gateway as the encapsulation for the router. But everytime i try to add "Developer vlan" (Which in Norwegian is Utvikler) Then i just get ...
Lars's user avatar
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3 answers
79 views

Is there a difference between NetID and Network Address?

So i know the gist of it. Thanks to the help here Network Address i see as anything ending with 0 Example: 192.168.0.0 Broadcast Address i see as anything ending with 255 Example: 192.168.0.255 ...
Lars's user avatar
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1 answer
108 views

Logic of subnetmask 255.255.255.252 networking in Packet Tracer

We have an assignment to connect computers to each other using this system. I tried changing from FastEthernet to GigaEthernet and then adding this cross connection. Which our teacher says is the ...
Lars's user avatar
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-1 votes
2 answers
217 views

Why is inter-VLAN communication not working in my network set-up in Cisco Packet Tracer?

I have created a simple bus topology connecting 2 switches and a router, with each switch connected to their respective end devices through ordinary star topology. The switch model used was 3560-24PS ...
Trineshen's user avatar
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1 answer
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Too many mac addresses in a switch - Cisco Packet Tracer

The image of a network im refering to is above. In Cisco Packet Tracer after having used a command ping 192.168.1.3 from pc1 to pc3, when I check mac addresses in both SW1 and SW2 using show mac ...
pieceofpaper's user avatar
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1 answer
117 views

I can't find the proper routes to connect 4 networks between 2 routers

I need to do a labwork on Packet Tracer and everything's good but I can't properly setup static routes. There is my problem : So those networks can communicate but Room 3 can't ping a PC in Room 2. ...
akira's user avatar
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0 answers
105 views

IPsec no working properly

I want to set an IPsec between two routers similar to the one in this lab, however the client on router EAST is NATted with the public IP 98.76.65.42 on the local side EAST(config)# access-list 110 ...
nirvana's user avatar
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2 answers
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Unable to ping across different vlans

I have two switches (A,B) connected to each other and one of them is connected to a router with the interfaces g0/1.1 vlan10 g0/1.2 vlan20 g0/1.99 native switch A has vlan 10 (10.0.0.0/24) switch B ...
nirvana's user avatar
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1 answer
110 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
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1 answer
185 views

Standby router is not found although HSRP is working properly. Why?

I implemented HSRP in a project in packet tracer. Although HSRP is working properly show standby brief gives the following output. What is strange, that If the first router is enabled DHCP stops ...
Rubus's user avatar
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HSRP and DHCP problem

I have 2 layer 3 switches DS1 and DS2. There are the same VLANs but different IP addresses on VLAN interfaces. On DS1: VLAN 10: 192.168.10.1/24 VLAN 20: 192.168.20.1/24 On DS2: VLAN 10: 192.168.10.2/...
Penguin's user avatar
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1 answer
207 views

How to permit ospfv3 packet in ipv6 access list?

In Packet Tracer, I have a private network with 5 different VLANs and inter-vlan routing enabled on R1. These are connected via an edge router to an ISP. On the interface S0/0/0 of R1 in direction in ...
Rubus's user avatar
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1 answer
60 views

Cannot enable link. Why?

I have the following setup: I'm unable to enable Fa0/5. The switch configuration for that port is correct No configuration has been made on the server side: Assigning Ip adresses has not solved the ...
Rubus's user avatar
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426 views

Why does this access list block DHCP request?

To prevent IP spoofing in a VLAN I configured the following access list ip access-list extended MITARBEITER permit tcp 10.15.240.0 0.0.0.255 any permit udp 10.15.240.0 0.0.0.255 any permit icmp 10....
Rubus's user avatar
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Cisco Packet Tracer - OSPF network variable length subnet

I'm not sure if I going crazy or not. I try to configure an ospf network: (conf)#router ospf 1 #network 10.73.90.80 0.0.0.63 area 0 I then type show running and it reverts to 10.73.90.64 0.0.0....
Robbret's user avatar
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1 answer
387 views

How To Get Text Wrapped Around In A Note Box In Cisco Packet Tracer?

I am new to Packet Tracer, and I am trying to refresh my CCNA knowledge. I downloaded and installed PT version 8.2.1 which is the latest version by today (04/23/2023). I have been using it for a while ...
Shadi's user avatar
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2 answers
100 views

Hide private IP address

DS has 7 VLANs and 7 DHCP pools respectively. There are 3 trunk links to 3 access layer switchs to share VLANs. Its VLAN interfaces and DHCP pools: ip dhcp pool vlan10 network 192.168.10.0 255.255....
Penguin's user avatar
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1 answer
37 views

ACLs block connection

Here is my configuration on ISP router: interface GigabitEthernet0/0/0 no ip address duplex auto speed auto ! interface GigabitEthernet0/0/0.10 encapsulation dot1Q 10 ip address 192.168.10.1 255....
Penguin's user avatar
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1 vote
1 answer
121 views

VPN doesn't work

I'm trying to configure VPN between 2 routers: R1: public IP is 200.0.0.6/30 on S0/0/1, private IP are 10.0.0.0/8 and 20.0.0.0/8 R3: public IP is 210.10.0.6/30 on S0/0/0, private IP is 192.168.3.0/24 ...
Penguin's user avatar
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2 votes
1 answer
354 views

How to implement inter-vlan routing in this configuration on L3 switch

I want to enable inter-vlan routing on L3 switch. I have accomplished this by the following commands executed on Gig1/0/16 and Gig1/0/10 and setting the respective (192.168.x.1) as gateway on the ...
Rubus's user avatar
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1 answer
225 views

Make printer in different subnet accessible to other subnet

i am creating a network and i want the printer which is in a different subnet to be accessible by all other subnets. The router network is 192.168.10.0/24 further subdivided into /28 subnets. The ...
digiadit's user avatar
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1 answer
71 views

Inconsistent behavior of show ip dhcp pool poolname

show ip dhcp pool Mitarbeiter10 gives the following output: R1#show ip dhcp pool Mitarbeiter10 Pool Mitarbeiter10 : Utilization mark (high/low) : 100 / 0 Subnet size (first/next) : 0 / 0 ...
Rubus's user avatar
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0 votes
2 answers
308 views

My PCs aren't able to ping each other successfully. Why? I think my Ip route is the problem? I am not sure

I have a topology of PCs A, B, D, and E, 2 routers R1 and R2, and 4 switches A, B, D, and E for each of my PCs respectively. PC A IP is 201.4.100.1/28 with a default gateway of 201.4.100.2, PC-B IP ...
NETFstudtNP's user avatar
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2 answers
82 views

Static routing Cisco packet tracert

Im new with Packet Tracer, Regarding the problem of static routing, I have a question and want to ask, I simulated static routing of three L3 switches on packet tracert, Now, PC1 and PC2 can be ...
berniecheniitt 's user avatar
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1 answer
666 views

Why can't I enter privileged EXEC mode?

I created a network in Packet Tracer using 2 switches, 3 PCs and straight through cables. I have to create the following configuration for both switches: no ip domain-lookup service password-...
katerina's user avatar
0 votes
1 answer
232 views

I got locked out of my switch

I am currently practicing on cisco packet tracer, so I used the command " enable password 5 cisco" then I leave the global configuration mode to the user mode and try to go to privilege mode ...
Abdur Rafiu Bello's user avatar
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2 answers
953 views

Configure Inter-VLAN and OSPF - FIXED!

Hi guys thank you for your all answers!! I finally solved it. The IP is overlapping because of duplicate vlans. I replace same vlans to new vlans and it worked. How can I make my VLAN connected to the ...
cisconewbie4545's user avatar
1 vote
0 answers
266 views

Full Cone NAT on Cisco router in Packet Tracer

I am trying to create a network with two subnetworks with private IPs. I need to configure symmetric NAT on edge routers within the subnetwork. Diagram: I need to configure NAT on Router0 and Router2....
Filip's user avatar
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2 answers
346 views

Cisco Packet Trace Access-List

i have make a network, an i have try to work with access-list but not working :( can anyone help me with this pls Pc1 can access server finance server web can be access from all pc and server ...
Megatek It's user avatar
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0 answers
53 views

Connecting 9 Remote Sites with VPN Tunnels

I am working in a Cisco ecosystem and need to be able to test a 9 tunnel IPSec network over the internet using 10 x Cisco 1941 routers. This is a "hub and spoke" type configuration; where ...
Tyler DeBoy's user avatar
1 vote
1 answer
572 views

VLAN trunking - how to ping PC4 from PC1?

I'm still a beginner with VLANs and trunking, and I'm trying to get this topology working. Specifically, I am unable to ping PC4 (10.0.10.11/32) from PC1 (10.0.10.10/32), despite both of them being on ...
Deepak's user avatar
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1 answer
682 views

How can i create this topology in cisco packet tracer?

How can i create this topology in cisco packet tracer? wiil be it look like this?
Erom's user avatar
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1 vote
1 answer
156 views

show ip ospf neighbor unexpected results On packet Tracer

I made a small separated networks on packet tracer and used OSPF protocol to route between networks. Although The connect is Successful when I write 'show ip ospf neighbor' Command in CLI router X ...
Somah's user avatar
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2 votes
2 answers
1k views

How to configure a router as a dhcp server for vlans through a Layer 3 switch?

I would like to know what commands to type in the different switches and the router to to make the router function as a dhcp server for each PC in seperate vlans . I know to create the dhcp pools in ...
user159729's user avatar
0 votes
2 answers
122 views

how cisco switch handle the incoming frame

[![Hi am new to networking, am having packet tracer scenario here. I have 2 switches S1 and S2. I have not configured any VLAN on both the switches.so all the devices connected to both the switches ...
Phoenix's user avatar
0 votes
1 answer
2k views

Why can't I ping from a pc in one OSPF area to a pc in another OSPF area after configuring each neighbouring network?

So I have an exercise with this topology: I have configured all the OSPF networks on each router and I made every g0/0 interface (except for the ABR in the middle) a passive interface. However, I ...
gabone's user avatar
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0 votes
0 answers
33 views

How do I decide which router should be DTE and DCE? [duplicate]

When connecting two routers with a serial cable one end of the cable is always DTE and the other is DCE. How do I decide which end I should connect to which router? Does it even matter? The worksheet ...
kess's user avatar
  • 101
2 votes
1 answer
341 views

Using PT and EtherChannels along with STP

I'm very new to all of this but I am trying to create a network topology as practice that uses three etherchannels across three switches and then rely on STP to block one. So far it was working well. ...
James's user avatar
  • 23
0 votes
1 answer
1k views

Cisco Packet Tracer gives "Invalid IP Address" when I assign an address to a router [duplicate]

I was given an exercise where I have an IP address range and I have to configure multiple sub networks from that range. The address is 238.61.192.128 with the mask 255.255.255.128 (/25). I created my ...
abc xyz's user avatar
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2 votes
1 answer
460 views

HSRP switching active state but destination is unreachable

I've been working on a this network where I have 2 routers, Main router and failover router. both routers are connected to the main switch via fa0/0 which is divided into 3 sub interfaces, fa0/0.10, ...
Eslam Allam's user avatar
2 votes
1 answer
2k views

Cisco Packer Tracer port labels all jumbled and covering each other

Has anyone found a solution to make this look cleaner and more readable. I spend hours moving around the devices trying to figure out which interface is connected to which router and make so many ...
Ace's user avatar
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9 votes
5 answers
944 views

Different Behaviour of a Router

There are 2 cases that I would like to point out: When the router is directly connected with 2 PCs like this, In this case, PC2 is able to ping PC3. I just configured the IP address of PC2 and PC3 ...
anonymous's user avatar
3 votes
1 answer
617 views

HSRP on multilayer switch not working

I have this network topology in Packet Tracer, and i wanted to implement HSRP on both of the multilayer switches. So what i made here is the switch on the left, both the laptop and the server are on ...
1511's user avatar
  • 33
1 vote
1 answer
461 views

NAT in ASA (5505) Firewall is not working for VLANs configured in Layer3 Switch?

Toplogy: Tool Used: Cisco Packet Tracer Scenario: NAT for hosts in any of the VLANs of Layer3-Switch not working. Ping requests reaches outside server, but NAT is not working so ISP Router can't ...
Rajan's user avatar
  • 121
0 votes
1 answer
2k views

How to configure NAT in Cisco ASA Firewall for all VLANs connected to layer 3 switch? [closed]

Topology: How to set up NAT in Cisco ASA Firewall (in Packet Tracer), when there are VLANs in the network? In the current approach, NAT is not working to reach the server (8.8.8.8) from any of the ...
Rajan's user avatar
  • 121
2 votes
1 answer
498 views

NAT not working in cisco packet tracer

Cisco Router Version: 16.7(3r) Cisco Packet Tracer:8.0 x64 Router(config)#interface dialer 1 Router(config-if)#ip nat? % Unrecognized command Router(config-if)#ip nat ? % Unrecognized command Router(...
AlpGUL's user avatar
  • 23
1 vote
1 answer
98 views

How to configure IPV6 /53 subnet on packet tracer?

I have tried configuring a Ipv6 subnet address 2001:0dce:0000:0000::1/53 into the router interface. It works but when the I tried setting the auto-configuration button on the PC connected to this ...
c00kie132's user avatar
1 vote
1 answer
2k views

Layer 2 (switch) QoS in a LAN or VLAN-based QoS

In my setup above (Cisco 2960 running IOS15), I have all devices marked in red in vlan 20 (WLAN_VLAN), devices in green in VLAN 10 (PC_VLAN) and devices in yellow which are VoIP in the voice vlan. I ...
user78234's user avatar
0 votes
0 answers
913 views

No Voice commands on cisco router

I cannot find voice commands on my router, I have licenced it but no voice commands or sip are found Its on packet tracer. Cisco router 2911 Thank you
Garp's user avatar
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0 votes
1 answer
205 views

Does privilege level work in Packet Tracer's Switch-PT?

On Switch-PT in Packet Tracer, I'm trying to set a user with username b and secret b, with privilege level 5: username b privilege 5 secret b line console 0 login local ​ But when I do show running-...
paperangel220's user avatar

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