Re: Redirecting bridge (long)

2003-08-22 Thread Todd T. Fries
Hey Marc, thanks for the note. We had a slightly different implementation go into service this morning, and it involves a sightly different ruleset, so for the list and future reference, here is our scenario and solution. OpenBSD was placed between the network and the cisco that goes to the upstr

Re: Redirecting bridge (long)

2003-08-21 Thread Marc Balmer
On Wed, 20 Aug 2003 16:47:40 +0200 > It cannot work. Bridges are layer 2 devices. They forward packets > based on layer 2 addresses. Rewriting the IP address (layer 3) is > something the bridge will not notice, because there is no routing > involved and hence no lookup of the (new) layer 2 address

Re: Redirecting bridge

2003-08-20 Thread Jason Dixon
On Wed, 2003-08-20 at 10:47, Dieter Kasielke wrote: > On Wed, 20 Aug 2003 16:22:56 +0200 Marc Balmer wrote: > > On Wed, 20 Aug 2003 13:27:36 +0200 > > Jan Roeloffzen <[EMAIL PROTECTED]> wrote: > > > > > NETWORK and SERVERS should be on the same subnet to make it work with a > > > bridge. Your seco

Re: Redirecting bridge

2003-08-20 Thread Dieter Kasielke
On Wed, 20 Aug 2003 16:22:56 +0200 Marc Balmer wrote: > On Wed, 20 Aug 2003 13:27:36 +0200 > Jan Roeloffzen <[EMAIL PROTECTED]> wrote: > > > NETWORK and SERVERS should be on the same subnet to make it work with a > > bridge. Your second setting with routers suggests they are not? > > In my settin

Re: Redirecting bridge

2003-08-20 Thread Marc Balmer
On Wed, 20 Aug 2003 13:27:36 +0200 Jan Roeloffzen <[EMAIL PROTECTED]> wrote: > NETWORK and SERVERS should be on the same subnet to make it work with a > bridge. Your second setting with routers suggests they are not? In my setting, they actually are in the same subnet. The bridge "divides" the

RE: Redirecting bridge

2003-08-20 Thread Jan Roeloffzen
:33 To: [EMAIL PROTECTED] Subject: Redirecting bridge Hi How could PF be used to create a bridge that redirects IP traffic? What I intended to do (and failed) was to put a bridge (OpenBSD 3.4-beta) just in front of a small network of servers. The bridge was to redirect smtp traffic targeted to one

Redirecting bridge

2003-08-19 Thread Marc Balmer
Hi How could PF be used to create a bridge that redirects IP traffic? What I intended to do (and failed) was to put a bridge (OpenBSD 3.4-beta) just in front of a small network of servers. The bridge was to redirect smtp traffic targeted to one of the servers to another server: NETWORK -- xl1