All Questions
38
questions
1
vote
0
answers
123
views
Why is TCP connection on Windows machines, retransmitting after receiving a correct ACK from HTTP server
Using two different Windows laptops, one with Win 7 and the other Win 11, I'm trying to connect to the HTTP GUI of a device (cell phone booster) that's connected directly to my laptop through an ...
- 139
0
votes
0
answers
30
views
File service latency is high, How to troubleshoot?
This service is a file upload service and the request packet capture in the live network is as follows:
The data uploaded by the client is halfway through, and then it will not be sent
The server ...
- 1
0
votes
0
answers
2k
views
TCP Retransmission (TCP Port numbers reused) issues
I developed a web server and this is running on GKE.
Whenever I send any request to this server from my local pc, it occurs TCP retransmission.
Following is captured packets with Wireshark. The red ...
- 111
0
votes
1
answer
740
views
Connecting to a home server on a cellular hotspot
I am seeking advice on a networking issue I have run into recently. I suspect that I a making an obvious mistake in my assumptions about connections between machines on separate networks.
My goal is ...
0
votes
0
answers
360
views
How to show a HTTP stream from VLC Player in Wireshark?
I just set up a HTTP stream of a video between my Server and Client system using the VLC media player (using the command line). Both the systems run Ubuntu 20.04
vlc -vvv <path to video file> --...
- 1
0
votes
0
answers
145
views
Chunked HTTP response does not come through completely
Consider the following setup
+-------+ +--------+ +----------+
| | | | | |
| +----------->+ +---------->+ ...
0
votes
2
answers
585
views
Sending HTTP content over multiple TCP connections
Is it possible for an HTTP content to be sent over multiple TCP connections?
If so, what fields indicate that this has occurred? I would assume partial-content?
0
votes
2
answers
90
views
How to drop to a lower osi layer?
Is there a way I can initiate a higher level connection i.e. an http connection and then at some point "down grade" it to a lower layer or tcp?
Basically, once the connection has been made with http ...
- 7
0
votes
0
answers
169
views
How default Web Page is loaded with just TCP connection and no HTTP transaction?
Below is the packet capture from WireShark when a web request is made to the Google Server
172.217.26.228 is the IP address of the Google Server.
Filter that I am using is
(ip.dst == 172.217.26....
- 659
2
votes
1
answer
141
views
Why are initial connections always slower
I first noticed this when using Insomnia (HTTP clients) to test some of my API endpoints.
The first request I make to my API server (and others) is always 100ms+ but sequential requests are always ...
- 23
0
votes
1
answer
60
views
Does HTTP as a protocol include any mechanism for guaranteeing information?
I asked this question on networkengineering.stackexchange, without realizing that any protocols on top of TCP were off topic (i.e. that only OSI layers 4 and lower are on topic there).
The question ...
- 346
0
votes
1
answer
2k
views
tcp session - http request [ x out of y] in wireshark capture
As below, i am seeing this [HTTP request 1/2] and [HTTP request 2/2] in 2 separate payload, are they separate GET request in a single tcp session or are they the same GET request ???
====
Added full ...
- 1,625
-1
votes
1
answer
71
views
Wireshark - what happened?
This Wireshark issue has been driving my crazy for a few hours. What's happening here?
192.168.2.100 is an Apache server that is serving a static file.
192.168.2.196 is an embedded client ...
0
votes
1
answer
85
views
HTTP Post: File upload occurring prior to HTTP POST
Note: My apologies if this is the wrong site for this topic. This question was directed to Super User from Network Engineering
I'm following along the UMass Wireshark Labs, in particular, the one on ...
- 374
0
votes
1
answer
49
views
"Follow TCP stream" inserts extra line breaks and strings like "2000" "a7c" "0" (chunking?), how to hide that?
I often use "Follow TCP stream", very convenient to see the whole client/server conversation.
PROBLEM: Some strange characters (that are not in the real packets) are shown. Maybe due to HTTP chunking?...
- 11.2k