All Questions
7
questions with no upvoted or accepted answers
2
votes
0
answers
1k
views
netflix stall via linux iptables nat, tcp checksum errors (with workaround)
I've been trying to track down this problem for several days. I still haven't worked out what is going on, or how to fix it properly, but I do have a workaround.
Problem summary
Netflix stalls when ...
- 21
2
votes
0
answers
983
views
Tunnelling TCP connection through NAT
My server is in my school's NAT and my desktop computer is in my home NAT. I want to SSH to my server from home. I normally used school's VPN, but recently for some reason I can't. So I'm looking for ...
- 301
0
votes
0
answers
74
views
Linux 6.5 netfilter NAT reuses TCP ports in TIME_WAIT status?
In my understanding, Linux (netfilter)'s NAT doesn't reuse TCP ports in TIME_WAIT status, but seemingly Linux >= 6.5 reuses TCP ports in TIME_WAIT, even if the destination is the same.
For example, ...
- 41
0
votes
0
answers
130
views
Returning tcp/udp packets to sender
I'm using a Linux machine with WiFi hotspot to test the WiFi stack of an embedded device. For context, the embedded device is designed to send and receive encrypted packets to/from a remote server.
To ...
- 1
0
votes
1
answer
2k
views
SSH file transfers slow with lots of TCP retransmissions
Good evening,
I use SFTP (File Transfer over SSH) from a computer (Windows 10) to a Synology NAS. Both devices are behind NAT on different locations. Around 3 weeks ago, whenever I initiated a ...
- 31
0
votes
1
answer
665
views
Windows TCP redirection
On my Windows PC (192.168.1.123) , I have an application that connects to 1.2.3.4 on port 3333 by default, I would like to redirect the traffic to 127.0.0.1 port 2222.
Under Linux, this can be ...
- 1
0
votes
0
answers
792
views
NAT doesn't allow TCP ACK for sent TCP SYN
We are using TCP Simultaneous Open for connecting TCP socket. Lets call one SideA and other SideB.
From the wireshark log I see that first two SYN sent from SideB is blocked by SideA NAT. Then SideA ...
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