Skip to main content
4 votes

Non VLAN Tagged Traffic Not Going Through Trunk Between Cisco Switches

You set the interface native (untagged) VLAN to VLAN ID 1 and then only allowed VLAN 79 on the Trunk interface so untagged packets (VLAN 1) cannot pass over it. Add VLAN 1 to the allowed VLAN list on ...
FrameHowitzer's user avatar
3 votes

Is there a difference between NetID and Network Address?

Your "gist" is wrong, unfortunately. "0"s and "255"s may or may not indicate anything. The important thing to remember is that IP addresses are 32-bit binary numbers. ...
Ron Trunk's user avatar
  • 67.7k
3 votes

Logic of subnetmask 255.255.255.252 networking in Packet Tracer

The rule is: you cannot use the first and the last IP of a subnet. The first IP is reserved for the network address. The last IP is defined as the broadcast. A subnet with a mask of 255.255.255.252 ...
JFL's user avatar
  • 19.7k
2 votes
Accepted

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

Manually adding "Enter" is the only way I have found. Wish someone had a better answer.
Cris Graybeal's user avatar
2 votes

Is there a difference between NetID and Network Address?

To answer the titular question... "Network Address" is a well defined term. (in many RFC's) NetID is not. The Network Address is the all-zeros address of a subnet. For a /24, that's a dot-...
Ricky's user avatar
  • 32.3k
1 vote

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

172.16.0.1/23 overlaps with 172.16.1.0/24 that is used for "IT-Drift". That is even the literal error message that you've cut off in your screenshot. You need unambiguous subnets. And btw: ...
Zac67's user avatar
  • 85.5k
1 vote

Is there a difference between NetID and Network Address?

Network Address i see as anything ending with 0 Example: 192.168.0.0 Not correct. A network address or prefix is anything where the host bits are all 0. Your example works for /24 only. With e.g. a /...
Zac67's user avatar
  • 85.5k
1 vote
Accepted

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

First, you must create both VLANs on both switches, not just VLAN 10 on Switch 1 and VLAN 20 on Switch 2, but both VLANs on both switches: vlan 10 name Switch_1_VLAN ! vlan 20 name Switch_2_VLAN ! ...
Ron Maupin's user avatar
  • 99.9k
1 vote

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

First checks with VLAN-related problems: Have the VLANs been properly created on all switches? Assigning them without explicitly creating them (VLAN xx↵) doesn't always work. Can each node ping its ...
Zac67's user avatar
  • 85.5k
1 vote
Accepted

Too many mac addresses in a switch - Cisco Packet Tracer

That sounds normal. When a host first comes up, it may try some broadcast communication, e.g. DHCP. After, it will not need to do that, so clearing the MAC address tables will remove it until there is ...
Ron Maupin's user avatar
  • 99.9k
1 vote
Accepted

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

Your routers need to share an IP subnet. If you just invent some gateway addresses it won't work. The dotted link between R2 and R3 is your shared subnet. Configure IP addresses from the same subnet ...
Zac67's user avatar
  • 85.5k

Only top scored, non community-wiki answers of a minimum length are eligible