lost of traffic on port 445

Hello all

I have been reading this artilce about port 445 smb over tcp. Is this
traffic due to WINS lookups or broadcasts? I have been seing alot of traffic
on my network from this protocol on this port. If i am in a AD 2003 domain
can i disable this port or traffic on my client macbhines and servers? If i
can get rid of this traffic i'm thinking that this will speed up my network.
Also does file or data transfers/replication happen over this port? i.e i
copy a file from serverA to serverB

http://www.petri.co.il/what's_port_445_in_w2k_xp_2003.htm

Thanks a bunch

Direct hosting on port 445 is used instead of hosting over the Netbios
ports. So it certainly won't be WINS or broadcast traffic you see. It will
be file sharing traffic which is using direct hosting. If you prevent port
445 traffic, all file sharing will have to use Netbios instead. So you
wouldn't save any traffic, it would just be on a different port.

Whether you can get rid of Netbios and use direct hosting only is
another question. That might save you some network traffic if you could.
See KB 315267 (or 204279 for a pre-XP version).

"Skipster" <(E-Mail Removed)> wrote in message
news:778E541B-DDCF-4187-9E31-(E-Mail Removed)...
> Hello all
>
> I have been reading this artilce about port 445 smb over tcp. Is this
> traffic due to WINS lookups or broadcasts? I have been seing alot of
> traffic
> on my network from this protocol on this port. If i am in a AD 2003 domain
> can i disable this port or traffic on my client macbhines and servers? If
> i
> can get rid of this traffic i'm thinking that this will speed up my
> network.
> Also does file or data transfers/replication happen over this port? i.e i
> copy a file from serverA to serverB
>
> http://www.petri.co.il/what's_port_445_in_w2k_xp_2003.htm
>
> Thanks a bunch

thanks for the help with this. Would this traffic go away if the domain is a
AD 2003 domain? We are using a data repliation program that replicates data
from all are remote offices to a dedicated server at the main office, and we
are noticing that 80% ofthe bandwidth is due to smb over tcp on port 445.

I guess this traffic we are seing is normal then

thanks again

"Bill Grant" wrote:

> Direct hosting on port 445 is used instead of hosting over the Netbios
> ports. So it certainly won't be WINS or broadcast traffic you see. It will
> be file sharing traffic which is using direct hosting. If you prevent port
> 445 traffic, all file sharing will have to use Netbios instead. So you
> wouldn't save any traffic, it would just be on a different port.
>
> Whether you can get rid of Netbios and use direct hosting only is
> another question. That might save you some network traffic if you could.
> See KB 315267 (or 204279 for a pre-XP version).
>
> "Skipster" <(E-Mail Removed)> wrote in message
> news:778E541B-DDCF-4187-9E31-(E-Mail Removed)...
> > Hello all
> >
> > I have been reading this artilce about port 445 smb over tcp. Is this
> > traffic due to WINS lookups or broadcasts? I have been seing alot of
> > traffic
> > on my network from this protocol on this port. If i am in a AD 2003 domain
> > can i disable this port or traffic on my client macbhines and servers? If
> > i
> > can get rid of this traffic i'm thinking that this will speed up my
> > network.
> > Also does file or data transfers/replication happen over this port? i.e i
> > copy a file from serverA to serverB
> >
> > http://www.petri.co.il/what's_port_445_in_w2k_xp_2003.htm
> >
> > Thanks a bunch
>
>
>

No, it won't go away. It is not replication traffic. It is the normal SMB
session traffic. It only goes away if your clients aren't doing anything!

"Skipster" <(E-Mail Removed)> wrote in message
news36B44A8-3397-40E7-891D-(E-Mail Removed)...
> thanks for the help with this. Would this traffic go away if the domain is
> a
> AD 2003 domain? We are using a data repliation program that replicates
> data
> from all are remote offices to a dedicated server at the main office, and
> we
> are noticing that 80% ofthe bandwidth is due to smb over tcp on port 445.
>
> I guess this traffic we are seing is normal then
>
> thanks again
>
> "Bill Grant" wrote:
>
>> Direct hosting on port 445 is used instead of hosting over the
>> Netbios
>> ports. So it certainly won't be WINS or broadcast traffic you see. It
>> will
>> be file sharing traffic which is using direct hosting. If you prevent
>> port
>> 445 traffic, all file sharing will have to use Netbios instead. So you
>> wouldn't save any traffic, it would just be on a different port.
>>
>> Whether you can get rid of Netbios and use direct hosting only is
>> another question. That might save you some network traffic if you could.
>> See KB 315267 (or 204279 for a pre-XP version).
>>
>> "Skipster" <(E-Mail Removed)> wrote in message
>> news:778E541B-DDCF-4187-9E31-(E-Mail Removed)...
>> > Hello all
>> >
>> > I have been reading this artilce about port 445 smb over tcp. Is this
>> > traffic due to WINS lookups or broadcasts? I have been seing alot of
>> > traffic
>> > on my network from this protocol on this port. If i am in a AD 2003
>> > domain
>> > can i disable this port or traffic on my client macbhines and servers?
>> > If
>> > i
>> > can get rid of this traffic i'm thinking that this will speed up my
>> > network.
>> > Also does file or data transfers/replication happen over this port? i.e
>> > i
>> > copy a file from serverA to serverB
>> >
>> > http://www.petri.co.il/what's_port_445_in_w2k_xp_2003.htm
>> >
>> > Thanks a bunch
>>
>>
>>