Like u said, Shorewall tries to consolidate “IP ROUTING” and “system 
configuration“ into one place with their own Shorewall syntaxt”. 

I don’t want to diss on Shorewall, in a Shorewall forum, but if u have to learn 
“IP ROUTING” and “system configuration” to make Shorewall “work”, then what’s 
the point of adding another layer on top?

This was the philosophical problem I encountered when I tried to make Shorewall 
work for me. My choice was … just focus on the other two. It was a tough road, 
I’ll be honest. But, having done it. I’m happy.

Maybe there are reasons Shorewall is better? I don’t know what they are. 🤷‍♂️

Bill

Sent from my iPhone

> On Jan 25, 2022, at 7:55 AM, William Papolis <wpapo...@gmail.com> wrote:
> 
> What device are you using to configure your vLANs?
> 
> Likely your switch, right?
> 
> Switches can do “bridging” too.
> 
> I would “look there”, if you feel that some bridging is happening that your 
> switch is facilitating.
> 
> Without a network map, I don’t see how I can help.
> 
> It sounds like u got a lot going on. A lot of networks. Try simplifying.
> 
> YOU can do this.
> 
> Bill
> 
> Sent from my iPhone
> 
>>> On Jan 25, 2022, at 7:43 AM, Vieri Di Paola <vieridipa...@gmail.com> wrote:
>>> 
>>> On Tue, Jan 25, 2022 at 1:21 AM William Papolis <wpapo...@gmail.com> wrote:
>>> 
>>> This isn't a "Shorewall" issue.
>>> 
>>> It's an "IP ROUTING" issue.
>>> 
>>> Look at my last response.
>> 
>> Shorewall also sets network system parameters such as arp filtering,
>> ip routing, etc.
>> So this could be a "Shorewall issue" because Shorewall changes some of
>> these network parameters. It also handles routing tables and routing
>> rules.
>> 
>> In any case, you describe a general situation, but I'm giving details
>> on a very specific issue.
>> I appreciate your time, but I need to figure out why I'm seeing this
>> odd behavior.
>> 
>> Since you do not seem to be using Shorewall but iptables and system
>> tools, I was wondering if you could share the name of a could "general
>> purpose" Linux networking forum or mailing list. I once subscribed to
>> the netfilter ML, but it was overwhelming.
>> If you have any suggestions as to where I might explain the issue I'm
>> seeing in this topic, I'd appreciate it.
>> 
>> Thanks,
>> 
>> Vieri
>> 
>> 
>> _______________________________________________
>> Shorewall-users mailing list
>> Shorewall-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/shorewall-users


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