D-Link DI-524 blocks FTP xfer

Hardware ... DELL E510, 3GHz w/ 1 GB RAM
D-Link DI-524 router, Motorola SURFboard cable modem.
Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95

Somehow, I must have inadvertently changed the firewall settings on my
router as I cannot do FTP transfers when connected to the SURFboard
modem via the D-Link DI-524 router. I could swear that it used to work.
I have no problem with general web surfing.
However, if I bypass the router, I can see the files on the server and
upload files. If the router is in the path, in cannot see the contents
of the directories or upload files.

Any suggestions? WindsurferLA

windsurferLA wrote:
> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
> D-Link DI-524 router, Motorola SURFboard cable modem.
> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>
> Somehow, I must have inadvertently changed the firewall settings on my
> router as I cannot do FTP transfers when connected to the SURFboard
> modem via the D-Link DI-524 router. I could swear that it used to work.
> I have no problem with general web surfing.
> However, if I bypass the router, I can see the files on the server and
> upload files. If the router is in the path, in cannot see the contents
> of the directories or upload files.
>
> Any suggestions? WindsurferLA
>
>
Port forwarding?
<http://portforward.com/english/routers/port_forwarding/Dlink/DI-524/FTP.htm>

windsurferLA <(E-Mail Removed)> wrote in news:483fc07c$0$5705
$(E-Mail Removed):

> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
> D-Link DI-524 router, Motorola SURFboard cable modem.
> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>
> Somehow, I must have inadvertently changed the firewall settings on my
> router as I cannot do FTP transfers when connected to the SURFboard
> modem via the D-Link DI-524 router. I could swear that it used to work.
> I have no problem with general web surfing.
> However, if I bypass the router, I can see the files on the server and
> upload files. If the router is in the path, in cannot see the contents
> of the directories or upload files.
>
> Any suggestions? WindsurferLA

You are talking about an FTP client behind your router connecting to an FTP
server somewhere on the Internet right ?

In whatever FTP client you are using, check the Passive Mode (PASV) setting
for the connection. Tunr it off/or on and try it that way.

On Fri, 30 May 2008 01:53:13 -0700, windsurferLA <(E-Mail Removed)>
wrote:

>Hardware ... DELL E510, 3GHz w/ 1 GB RAM
> D-Link DI-524 router, Motorola SURFboard cable modem.
>Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>
>Somehow, I must have inadvertently changed the firewall settings on my
>router

Go unto this page:
<http://support.dlink.com/emulators/di524/adv_virtual.html>
in thy router and make sure you haven't redirected FTP somewhere.

Then go unto:
<http://support.dlink.com/emulators/di524/adv_filters.html>
and make sure thou hast not blocketh FTP (20/21).

>as I cannot do FTP transfers when connected to the SURFboard
>modem via the D-Link DI-524 router. I could swear that it used to work.

Yep. Swearing often helps. I do it quite often, but not in front of
customers. If necessary, I find it helpful to swear in a foreign
language, so nobody listening will be offended. I have several secret
incantations that have been known to fix almost any problem. However,
I'm not telling.

>I have no problem with general web surfing.
>However, if I bypass the router, I can see the files on the server and
>upload files. If the router is in the path, in cannot see the contents
>of the directories or upload files.
>
>Any suggestions? WindsurferLA

If all else fails, reset the router to defaults and start over.
Incidentally, verify that your router has the latest firmware
installed. This would be a good time to check.


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

DanS wrote:
> windsurferLA <(E-Mail Removed)> wrote in news:483fc07c$0$5705
> $(E-Mail Removed):
>
>> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
>> D-Link DI-524 router, Motorola SURFboard cable modem.
>> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>>
>> Somehow, I must have inadvertently changed the firewall settings on my
>> router as I cannot do FTP transfers when connected to the SURFboard
>> modem via the D-Link DI-524 router. I could swear that it used to work.
>> I have no problem with general web surfing.
>> However, if I bypass the router, I can see the files on the server and
>> upload files. If the router is in the path, in cannot see the contents
>> of the directories or upload files.
>>
>> Any suggestions? WindsurferLA
>
> You are talking about an FTP client behind your router connecting to an FTP
> server somewhere on the Internet right ?
>
> In whatever FTP client you are using, check the Passive Mode (PASV) setting
> for the connection. Tunr it off/or on and try it that way.
>
Checking Passive Mode did the trick.. Turning it on makes it work. Thanks

See bottom for reply.

Jeff Liebermann wrote:
> On Fri, 30 May 2008 01:53:13 -0700, windsurferLA <(E-Mail Removed)>
> wrote:
>
>> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
>> D-Link DI-524 router, Motorola SURFboard cable modem.
>> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>>
>> Somehow, I must have inadvertently changed the firewall settings on my
>> router
>
> Go unto this page:
> <http://support.dlink.com/emulators/di524/adv_virtual.html>
> in thy router and make sure you haven't redirected FTP somewhere.
>
> Then go unto:
> <http://support.dlink.com/emulators/di524/adv_filters.html>
> and make sure thou hast not blocketh FTP (20/21).
>
>> as I cannot do FTP transfers when connected to the SURFboard
>> modem via the D-Link DI-524 router. I could swear that it used to work.
>
> Yep. Swearing often helps. I do it quite often, but not in front of
> customers. If necessary, I find it helpful to swear in a foreign
> language, so nobody listening will be offended. I have several secret
> incantations that have been known to fix almost any problem. However,
> I'm not telling.
>
>> I have no problem with general web surfing.
>> However, if I bypass the router, I can see the files on the server and
>> upload files. If the router is in the path, in cannot see the contents
>> of the directories or upload files.
>>
>> Any suggestions? WindsurferLA
>
> If all else fails, reset the router to defaults and start over.
> Incidentally, verify that your router has the latest firmware
> installed. This would be a good time to check.
>
>


I updated the firmware to version 1.23 of 24 July 2006 , the newest
offered. It did not help...(Problem was cured elsewhere, see below) But
now I do not seem to be able to disable the wireless, so I removed the
antenna. I reloaded the old system settings, which called for wireless
to be disabled, but that feature did not seem to take. I may reset and
go back to the starting point.

Then reviewing DanS' posts, I check the Passive Mode setting on the FTP
application. THAT CURED THE FTP PROBLEM. I don't know why the need for
the change. As I have FTP set-ups for 2 different RoutHost Server
accounts, I would be surprised that I accidentally changed the setting
both.

windsurferLA <(E-Mail Removed)> wrote in
news:48404894$0$30238$(E-Mail Removed):

> DanS wrote:
>> windsurferLA <(E-Mail Removed)> wrote in news:483fc07c$0$5705
>> $(E-Mail Removed):
>>
>>> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
>>> D-Link DI-524 router, Motorola SURFboard cable modem.
>>> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>>>
>>> Somehow, I must have inadvertently changed the firewall settings on
>>> my router as I cannot do FTP transfers when connected to the
>>> SURFboard modem via the D-Link DI-524 router. I could swear that it
>>> used to work.
>>> I have no problem with general web surfing.
>>> However, if I bypass the router, I can see the files on the server
>>> and upload files. If the router is in the path, in cannot see the
>>> contents of the directories or upload files.
>>>
>>> Any suggestions? WindsurferLA
>>
>> You are talking about an FTP client behind your router connecting to
>> an FTP server somewhere on the Internet right ?
>>
>> In whatever FTP client you are using, check the Passive Mode (PASV)
>> setting for the connection. Tunr it off/or on and try it that way.
>>
> Checking Passive Mode did the trick.. Turning it on makes it work.
> Thanks

Glad it worked out...I don't know why it would have changed. Most FTP
clients have a global setting, under the main options, which is applied
to all new connections. And then each individual connection detail has a
PASV mode override on a per-connection basis.

I never really did understand passive mode. My FTP site, inside my
network, requires that passive mode be turned off or it never gets a data
channel. The initial connection works OK, as you can see in the log, but
then it would say 'can't open data channel'. Everything I've seen says
PASV mode is for connecting to an FTP behind a NAT rtr...but not mine.

windsurferLA wrote:
> See bottom for reply.
>
> Jeff Liebermann wrote:
>> On Fri, 30 May 2008 01:53:13 -0700, windsurferLA <(E-Mail Removed)>
>> wrote:
>>
>>> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
>>> D-Link DI-524 router, Motorola SURFboard cable modem.
>>> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>>>
>>> Somehow, I must have inadvertently changed the firewall settings on
>>> my router
>>
>> Go unto this page:
>> <http://support.dlink.com/emulators/di524/adv_virtual.html>
>> in thy router and make sure you haven't redirected FTP somewhere.
>>
>> Then go unto:
>> <http://support.dlink.com/emulators/di524/adv_filters.html>
>> and make sure thou hast not blocketh FTP (20/21).
>>
>>> as I cannot do FTP transfers when connected to the SURFboard modem
>>> via the D-Link DI-524 router. I could swear that it used to work.
>>
>> Yep. Swearing often helps. I do it quite often, but not in front of
>> customers. If necessary, I find it helpful to swear in a foreign
>> language, so nobody listening will be offended. I have several secret
>> incantations that have been known to fix almost any problem. However,
>> I'm not telling.
>>
>>> I have no problem with general web surfing.
>>> However, if I bypass the router, I can see the files on the server
>>> and upload files. If the router is in the path, in cannot see the
>>> contents of the directories or upload files.
>>>
>>> Any suggestions? WindsurferLA
>>
>> If all else fails, reset the router to defaults and start over.
>> Incidentally, verify that your router has the latest firmware
>> installed. This would be a good time to check.
>>
>>
>
>
> I updated the firmware to version 1.23 of 24 July 2006 , the newest
> offered. It did not help...(Problem was cured elsewhere, see below) But
> now I do not seem to be able to disable the wireless, so I removed the
> antenna. I reloaded the old system settings, which called for wireless
> to be disabled, but that feature did not seem to take. I may reset and
> go back to the starting point.
>
> Then reviewing DanS' posts, I check the Passive Mode setting on the FTP
> application. THAT CURED THE FTP PROBLEM. I don't know why the need for
> the change. As I have FTP set-ups for 2 different RoutHost Server
> accounts, I would be surprised that I accidentally changed the setting
> both.

Everything seems to be working correctly now... I'm not sure why.
Perhaps I didn't give router enough time to set up its software. After
I let it run for a few minutes, it seemed to set all the settings
correctly. Thanks for help.. I'm now more knowledgeable about routers.

DanS wrote:
> windsurferLA <(E-Mail Removed)> wrote in
> news:48404894$0$30238$(E-Mail Removed):
>
>> DanS wrote:
>>> windsurferLA <(E-Mail Removed)> wrote in news:483fc07c$0$5705
>>> $(E-Mail Removed):
>>>
>>>> Hardware ... DELL E510, 3GHz w/ 1 GB RAM
>>>> D-Link DI-524 router, Motorola SURFboard cable modem.
>>>> Software .. WinXP SR-3, "FTP Commander" and/or WS_FTP95
>>>>
>>>> Somehow, I must have inadvertently changed the firewall settings on
>>>> my router as I cannot do FTP transfers when connected to the
>>>> SURFboard modem via the D-Link DI-524 router. I could swear that it
>>>> used to work.
>>>> I have no problem with general web surfing.
>>>> However, if I bypass the router, I can see the files on the server
>>>> and upload files. If the router is in the path, in cannot see the
>>>> contents of the directories or upload files.
>>>>
>>>> Any suggestions? WindsurferLA
>>> You are talking about an FTP client behind your router connecting to
>>> an FTP server somewhere on the Internet right ?
>>>
>>> In whatever FTP client you are using, check the Passive Mode (PASV)
>>> setting for the connection. Tunr it off/or on and try it that way.
>>>
>> Checking Passive Mode did the trick.. Turning it on makes it work.
>> Thanks
>
> Glad it worked out...I don't know why it would have changed. Most FTP
> clients have a global setting, under the main options, which is applied
> to all new connections. And then each individual connection detail has a
> PASV mode override on a per-connection basis.
>
> I never really did understand passive mode. My FTP site, inside my
> network, requires that passive mode be turned off or it never gets a data
> channel. The initial connection works OK, as you can see in the log, but
> then it would say 'can't open data channel'. Everything I've seen says
> PASV mode is for connecting to an FTP behind a NAT rtr...but not mine.
I've never before had passive / non-passive mode make any difference.
When I connect directly to my modem, bypassing the router, I don't
need to be in the passive mode. Behind the router, the FTP transfer
program seems to require it. Why I don't understand.

Thanks for hint ... Fortunately all is now working.

In prior post... It was suggested that I upgrade firm ware..

I reported that I could no longer disable wireless after DI-524 firmware
upgrade to 2006 version, .

I've found secret. Before you can disable the wireless, you must first
disable security. Once security is disabled, you can disable wireless.
When you re-enable security, the previously entered codes are still in
memory.
>
>
WindsurferLA