Re: disable TCP from NetBSD
"Nikos Balkanas" <[email protected]>
| Newsgroups | gmane.network.net-snmp.user |
|---|---|
| Message-ID | <000701c9aba8$0615b0b0$02b2a8c0@tardis> |
Hi, You can still work with raw sockets, therefore rewriting your IP packets - useful and advanced network programming, without bypassing your kernel. If you do (bypass it) there is a whole lot of userspace applications that depend on it, and I am afraid you may end up with a useless system. Good luck, Nikos ----- Original Message ----- From: Alexander Bubnov To: Nikos Balkanas Cc: [email protected] Sent: Monday, March 23, 2009 9:11 AM Subject: Re: disable TCP from NetBSD Thanks you for replay, Nikos! Most probably you are right that I am not in right direction... I just would like to write a simple implementation of TCP layer of TCP/IP stack. For this purpose I need IP layer to get IP PDU (packets) with help of raw socket. Now, I cannot use socket interface as the kernel caught all TCP fragments. even I cannot receive TCP PDU using bpf from other peers because the kernel sends RST as it thinks there are not listeners. I though TCP layer can be easily separated off from the kernel. But, as far as I understand only whole TCP/IP stack can be turned off because all the layers have strong dependencies from each other beginning at NIC drivers. 2009/3/23 Nikos Balkanas <[email protected]> Hi, What are you trying to do? It doesn't seem you are in the right direction. All IP traffic should and will go through the kernel. I presume you are not redeveloping your NIC drivers. BR, Nikos ----- Original Message ----- From: Alexander Bubnov To: [email protected] Sent: Sunday, March 22, 2009 7:05 PM Subject: disable TCP from NetBSD Hello, all! I am going to practice in net programming by writing TCP protocol. Can you please let me know how to disable TCP from NetBSD because as I guess all tcp packets will be catched by kernel? Unfortunately, I have not found the way in manual about sysctl and GENERIC conf file for kernel, just "options INET" which turn off IP + ICMP + TCP. Thanks in advance. -- /BR, Alexander -------------------------------------------------------------------------- ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com -------------------------------------------------------------------------- _______________________________________________ Net-snmp-users mailing list [email protected] Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users -- /BR, Alexander ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Net-snmp-users mailing list [email protected] Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users