Re: Question that has dogged me for a while.

2017-05-08 Thread Freddie Cash
On Fri, May 5, 2017 at 8:34 PM, Karl Denninger wrote: > Can you point me to the ruleset you posted? Thanks in advance. > I can't remember all your network details, and don't have the e-mails saved, so fill in the blanks below. :) And change the ports as needed. ​IIF=​ ​EIF= PUB_IP="me" SRV_I

Re: Question that has dogged me for a while.

2017-05-05 Thread Julian Elischer
On 6/5/17 8:14 am, Karl Denninger wrote: On 5/5/2017 19:08, Dr. Rolf Jansen wrote: Am 05.05.2017 um 20:53 schrieb Karl Denninger : On 5/5/2017 14:33, Julian Elischer wrote: On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: Resolving this with ipfw/NAT may easily become quite complicated, if not impos

Re: Question that has dogged me for a while.

2017-05-05 Thread Julian Elischer
On 6/5/17 7:53 am, Karl Denninger wrote: On 5/5/2017 14:33, Julian Elischer wrote: On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: Resolving this with ipfw/NAT may easily become quite complicated, if not impossible if you want to run a stateful nat'ting firewall, which is usually the better choice.

Re: Question that has dogged me for a while.

2017-05-05 Thread Karl Denninger
On 5/5/2017 21:56, Dr. Rolf Jansen wrote: > Am 05.05.2017 um 21:14 schrieb Karl Denninger : >> On 5/5/2017 19:08, Dr. Rolf Jansen wrote: >>> Am 05.05.2017 um 20:53 schrieb Karl Denninger : On 5/5/2017 14:33, Julian Elischer wrote: > On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: >> Resolvin

Re: Question that has dogged me for a while.

2017-05-05 Thread Dr. Rolf Jansen
Am 05.05.2017 um 21:14 schrieb Karl Denninger : > On 5/5/2017 19:08, Dr. Rolf Jansen wrote: >> Am 05.05.2017 um 20:53 schrieb Karl Denninger : >>> On 5/5/2017 14:33, Julian Elischer wrote: On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: > Resolving this with ipfw/NAT may easily become quite comp

Re: Question that has dogged me for a while.

2017-05-05 Thread Karl Denninger
On 5/5/2017 19:08, Dr. Rolf Jansen wrote: > Am 05.05.2017 um 20:53 schrieb Karl Denninger : >> On 5/5/2017 14:33, Julian Elischer wrote: >>> On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: Resolving this with ipfw/NAT may easily become quite complicated, if not impossible if you want to run a s

Re: Question that has dogged me for a while.

2017-05-05 Thread Dr. Rolf Jansen
Am 05.05.2017 um 20:53 schrieb Karl Denninger : > On 5/5/2017 14:33, Julian Elischer wrote: >> On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: >>> Resolving this with ipfw/NAT may easily become quite complicated, if >>> not impossible if you want to run a stateful nat'ting firewall, which >>> is usually

Re: Question that has dogged me for a while.

2017-05-05 Thread Karl Denninger
On 5/5/2017 18:53, Karl Denninger wrote: > A "telnet 70.169.168.7 2552" from outside works perfectly well. But the > second NAT should cause a "telnet 70.169.168.7 2552" from an > internet-network host to work also. It doesn't. s/internet-network/inside-network/ :-) -- Karl Denninger k...@denn

Re: Question that has dogged me for a while.

2017-05-05 Thread Karl Denninger
On 5/5/2017 14:33, Julian Elischer wrote: > On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: >> Resolving this with ipfw/NAT may easily become quite complicated, if >> not impossible if you want to run a stateful nat'ting firewall, which >> is usually the better choice. >> >> IMHO a DNS based solution is

Re: Question that has dogged me for a while.

2017-05-05 Thread Julian Elischer
On 5/5/17 1:48 am, Dr. Rolf Jansen wrote: Resolving this with ipfw/NAT may easily become quite complicated, if not impossible if you want to run a stateful nat'ting firewall, which is usually the better choice. IMHO a DNS based solution is much more effective. On my gateway I have running the

Re: Question that has dogged me for a while.

2017-05-05 Thread Julian Elischer
On 5/5/17 2:06 am, Karl Denninger wrote: On 5/4/2017 12:12, Rodney W. Grimes wrote: Consider the following network configuration. Internet --- Gateway/Firewall -- Inside network (including a web host) 70.16.10.1/28 192.168.0.0/24 The address of the outside is FICT

Re: Question that has dogged me for a while.

2017-05-04 Thread Karl Denninger
On 5/4/2017 14:44, Rodney W. Grimes wrote: >> On 5/4/2017 13:47, Rodney W. Grimes wrote: On 5/4/2017 12:12, Rodney W. Grimes wrote: >> Consider the following network configuration. >> >> >> Internet --- Gateway/Firewall -- Inside network (including a >> web ho

Re: Question that has dogged me for a while.

2017-05-04 Thread Rodney W. Grimes
> On 5/4/2017 13:47, Rodney W. Grimes wrote: > >> On 5/4/2017 12:12, Rodney W. Grimes wrote: > Consider the following network configuration. > > > Internet --- Gateway/Firewall -- Inside network (including a > web host) > 70.16.10.1/28 192.1

Re: Question that has dogged me for a while.

2017-05-04 Thread Karl Denninger
On 5/4/2017 13:47, Rodney W. Grimes wrote: >> On 5/4/2017 12:12, Rodney W. Grimes wrote: Consider the following network configuration. Internet --- Gateway/Firewall -- Inside network (including a web host) 70.16.10.1/28 192.168.0.0/24

Re: Question that has dogged me for a while.

2017-05-04 Thread Rodney W. Grimes
> > On 5/4/2017 12:12, Rodney W. Grimes wrote: > >> Consider the following network configuration. > >> > >> > >> Internet --- Gateway/Firewall -- Inside network (including a > >> web host) > >> 70.16.10.1/28 192.168.0.0/24 > >> > >> The address of the outside is FICTI

Re: Question that has dogged me for a while.

2017-05-04 Thread Karl Denninger
On 5/4/2017 12:48, Dr. Rolf Jansen wrote: > Resolving this with ipfw/NAT may easily become quite complicated, if not > impossible if you want to run a stateful nat'ting firewall, which is usually > the better choice. > > IMHO a DNS based solution is much more effective. > > On my gateway I have r

Re: Question that has dogged me for a while.

2017-05-04 Thread Karl Denninger
On 5/4/2017 12:12, Rodney W. Grimes wrote: >> Consider the following network configuration. >> >> >> Internet --- Gateway/Firewall -- Inside network (including a >> web host) >> 70.16.10.1/28 192.168.0.0/24 >> >> The address of the outside is FICTIONAL, by the way. >>

Re: Question that has dogged me for a while.

2017-05-04 Thread Dr. Rolf Jansen
Resolving this with ipfw/NAT may easily become quite complicated, if not impossible if you want to run a stateful nat'ting firewall, which is usually the better choice. IMHO a DNS based solution is much more effective. On my gateway I have running the caching DNS resolver Unbound. Now let's as

Re: Question that has dogged me for a while.

2017-05-04 Thread Rodney W. Grimes
[ Charset UTF-8 unsupported, converting... ] > On Thu, May 4, 2017 at 9:22 AM, Karl Denninger wrote: > > > Consider the following network configuration. > > > > > > Internet --- Gateway/Firewall -- Inside network (including a > > web host) > > 70.16.10.1/28 192.168.0.0

Re: Question that has dogged me for a while.

2017-05-04 Thread Rodney W. Grimes
> Consider the following network configuration. > > > Internet --- Gateway/Firewall -- Inside network (including a > web host) > 70.16.10.1/28 192.168.0.0/24 > > The address of the outside is FICTIONAL, by the way. > > For policy reasons I do NOT want the gateway m

Re: Question that has dogged me for a while.

2017-05-04 Thread Freddie Cash
On Thu, May 4, 2017 at 9:22 AM, Karl Denninger wrote: > Consider the following network configuration. > > > Internet --- Gateway/Firewall -- Inside network (including a > web host) > 70.16.10.1/28 192.168.0.0/24 > > The address of the outside is FICTIONAL, by the way.

Re: Question that has dogged me for a while.

2017-05-04 Thread Lee Brown
On Thu, May 4, 2017 at 9:22 AM, Karl Denninger wrote: > Consider the following network configuration. > > > Internet --- Gateway/Firewall -- Inside network (including a > web host) > 70.16.10.1/28 192.168.0.0/24 > > The address of the outside is FICTIONAL, by the way.

Question that has dogged me for a while.

2017-05-04 Thread Karl Denninger
Consider the following network configuration. Internet --- Gateway/Firewall -- Inside network (including a web host) 70.16.10.1/28 192.168.0.0/24 The address of the outside is FICTIONAL, by the way. For policy reasons I do NOT want the gateway machine to actually h