tcp/ip stack

Cause I am Curios Frame - Segment is Preflight=Obj+Header How Linux knows the pre-sequence numbers and segment \br For Example : \x6f\x70\x3d\x50\x41\x4d\x3a\x61\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x69\x6f\x6e\x20\x67\x72\x61\x6e\x74\x6f\x72\x73\x3d\x3f op=PAM:authentication grantors=? Such...

I want to extract the TCP header and print the Header details of both incoming as well as outgoing packets but I need to hook that module in the Linux Kernel. That is I need to create an LKM for the same.

I have been trying very hard to find about buffers used in TCP/IP as part of packet transfer in linux. More i read, more i get confused. Below given are questions i have. Can someone help me figure it out? 1)Is the driver queue which is implemented as a ring buffer with descriptors pointing to...

I am getting the relatively high number of open TCP session, can anyone please help me understand how can I increase the limit and is it safe to increase it, depending on server resources. Total: 1079 (kernel 1593) TCP: 40140 (estab 283, closed 39387, orphaned 0, synrecv 0, timewait...

Hi, Are there projects using lwip stack with linux (used in the kernel or in the user space)? And what are the advantages of each (working in kernel side or user space) ?