Re: kern/122963: [ipfw] tcpdump does not show packets redirected by 'ipfw fwd' on proper interface

2014-01-16 Thread n j
Ok, it's been a while since I posted that feedback to the PR, so I don't really remember all the details, but I probably get what you're saying. Let me go over my original problem: A program ("MUX") listens on port 443 on the server. It receives requests from clients and forwards those packets to

Re: kern/122963: [ipfw] tcpdump does not show packets redirected by 'ipfw fwd' on proper interface

2013-08-13 Thread n j
The following reply was made to PR kern/122963; it has been noted by GNATS. From: n j To: bug-follo...@freebsd.org, zub...@advancedhosters.com Cc: Subject: Re: kern/122963: [ipfw] tcpdump does not show packets redirected by 'ipfw fwd' on proper interface Date: Tue, 13 Aug 2013 11:3

Re: [RFC] Enabling IPFIREWALL_FORWARD in run-time

2012-10-23 Thread n j
> On 10/19/12 4:25 AM, Andrey V. Elsukov wrote: >> >> Hi All, >> >> Many years ago i have already proposed this feature, but at that time >> several people were against, because as they said, it could affect >> performance. Now, when we have high speed network adapters, SMP kernel >> and network st

Re: Reducing the need to compile a custom kernel

2012-02-14 Thread n j
On Sun, Feb 12, 2012 at 8:52 AM, Ian Smith wrote: > On Fri, 10 Feb 2012 16:12:00 +, Bjoern A. Zeeb wrote: >  > > IPFIREWALL_FORWARD > > Unless something's changed, julian@ has pointed out (paraphrasing) that > this adds bits of code to various parts of the stack and was thought to > impact per

Re: Kernel Config for NAT

2010-04-09 Thread n j
> That's actually a good question considering the lack of documentation.  If > that works then great, but one wonders what the ipfw_nat modules is for? > looks like it's tied into libalias apparently a replacement for natd. Here's my kernel configuration: [--snip--] options IPFIREWALL

Re: IPFIREWALL_FORWARD

2010-03-16 Thread n j
> it's needed for the functionality. > you need to slightly change the behaviour or the existing stack in quite a > number of places to handle a forwarded packet. Sorry for catching up with the thread so late, I was without Internet connection for the last couple of days. Thanks for all the repli

Re: IPFIREWALL_FORWARD

2010-03-11 Thread n j
> A loadable module requires a coherent piece of code to implement the > functionality, that can be put into the module. This option > scatters tiny snippets of code throughout the exisitng > TCP/UDP/IP/ipfw code. Is that just a matter of current implementation or is that 'scatter' necessary for f

IPFIREWALL_FORWARD

2010-03-10 Thread n j
Hello, although this has probably been asked before, could anyone point me to some relevant information about why fwd/forward requires kernel recompile, i.e. it's not been made a kernel module? This prevents me from using freebsd-update and forces me to upgrade from source which - even though we a

Re: in-kernel nat and stateful inspection hangs system 7.1 RELEASE

2009-02-17 Thread n j
> About 2 Minutes later after apply this rule set, system writes that bge1 > watchdog timeout --- resetting and then system hangs, keyboard doesnt > response. No logs can be observed. > > When i remove all skipto and checkstate rules, system work properly > without problems. I suspect about statefu

Re: in-kernel nat and stateful inspection hangs system 7.1 RELEASE

2009-02-17 Thread n j
Sorry, hit the wrong key combo and message went before I finished it :( ... > Here is the rule that after a short while (probably the first packet > to match the rule) freezes the machine: > ipfw -q flush ipfw -q nat 123 config ip a.b.c.d log ipfw -q disable one_pass ... > ipfw add 3 nat 123