11-10-2022 10:51 PM
Hi Everyone,
I start to use cisco packet tracer to learn the network protocol, I found some unclear thing within Packet Tracer.
e.g. I learn the process of DHCP protocol in simulation mode, I check the PDU detail by click on each package, it has a lot of information for each layer of OSI module. But I find some un-clear info for me, I want to ask the question in somewhere, but I don't know where to ask, is there a dedicated community/place to let me post question?
detailed e.g.
In the first dhcp package sent the by dhcp client, in layer 3, it gives me below info:
1. The port does not have an IP address. -- the port or the package?
2. The packet payload is a DHCP UDP segment. The device sets the source address to the zero IP address.
3. The destination IP address is in the same subnet. The device sets the next-hop to destination. -- why still need to set next-hop as in the same subnet ?
BR
11-11-2022 12:19 AM
11-11-2022 04:14 AM
Here you are!
11-14-2022 09:07 AM
Some of those OSI explanations are standard "filler" by PT people; they follow a form or structure as specified by layer level and may not always be intuitive. in your case, "device sets the next-hop to destination" does not make sense here with DORA process at PC level. Once you get IP and start pinging , open that ICMP packet and check layer 3 info.
in case of "port does not have an IP address.", it is for the port; not package.
Note that there are some mistakes or issues in PT
Regards, ML
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11-11-2022 04:46 AM
This is the right place for Cisco Package Tracer questions? then I can post the full example here.
11-14-2022 09:13 AM - edited 11-14-2022 09:14 AM
no, I don't think there is a forum designed for PT issues or questions only. PT developed for Net Academy courses/students and it is not Cisco per se. If there is a board for PT issues, it would be on Net-academy site. Check over there.
You can use "Report an issue /problem" from PT Help Menu to fill out software- running issues, and to report any bugs.
Regards, ML
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