Welcome, Guest. Please login or register.
Did you miss your activation email?
Friday 01 November 2024, 07:22:36 am

Login with username, password and session length

Download the latest community FREE version  HERE
14248 Posts in 4376 Topics by 6515 Members
Latest Member: hulteends
Search:     Advanced search
+  EFW Support
|-+  Support
| |-+  General Support
| | |-+  TCP Window Scale and SACK Parameters
0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] Go Down Print
Author Topic: TCP Window Scale and SACK Parameters  (Read 7610 times)
mhLearn
Full Member
***
Offline Offline

Posts: 10


« on: Wednesday 06 March 2013, 04:21:21 pm »

Hi,

Aren't both of these parameters to be enabled by default? In version 2.5.1, both were disabled in sysctl.conf.

net.ipv4.tcp_sack = 0
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_synack_retries = 3

Any reason why both were disabled?

In some scenario, incoming tcp packets were distorted, where Window Scale in tcp options where removed and showed "4 NOP" in trace. Anyone can help to explain as I am still new to this? Thanks.


 
Logged
Pages: [1] Go Up Print 
« previous next »
Jump to:  

Page created in 0.031 seconds with 17 queries.
Powered by SMF 1.1 RC2 | SMF © 2001-2005, Lewis Media Design by 7dana.com