On 5/13/2014 2:46 PM, Tadd M. Balfour wrote:
> I'm new to Shorewall, but not to Linux.
> 
> I've been brought on to a project where the Shorewall seems to be
> hindering the overall bandwidth out to the cloud.
> 
> The business has a 50M x 5M fiber circuit with TW Cable.
> 
> When they run a speed test from inside the LAN, they are getting
> horrible download speeds.  Less than 3MB!
> 
> The TW Level III Tech indicated that he felt that it was the Firewall
> that was causing the issues.
> 
> My job is to figure out if that is the case.
> 
> After poking around, I ran the following command:  /sbin/mii-tool -v eth_wan
> and got these results:
> 
> eth_wan: negotiated 100baseTx-FD flow-control, link ok
>   product info: vendor 00:50:43, model 11 rev 1
>   basic mode:   autonegotiation enabled
>   basic status: autonegotiation complete, link ok 
>   capabilities: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD 
>   advertising:  1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD 
> flow-control
>   link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
> 
> That looks to me like it is negotiating only a 100 Megabit connection.
> 
> Is that correct?
>

It look like only a 100 Megabit connection. But I know of no way in
which Shorewall can affect the negotiated link speed.


> What else can I do to see what is going on?

Does this Shorewall configuration use traffic shaping? If so, there are
some FAQs that deal with slow download speeds.

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________

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