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Hortalonus

Is there a way to change the size of the packet sent when using ICMP with vdsipp.dll?
I read and reread the help file but found no reference on how to do this. I would like to allow the user to specify the size.

Also...

Question

Why, when I ping an IP address would I get random replys from my router in the middle of the replys from the node I am pinging?
See the image below for an example.

Here is the code I am using...

moke · Contributor Joined: 02 Jan 2002 Posts: 162

I don't think packet size can be changed in VDSIPP but i am pretty sure Tommy's vdsping.dll (I think thats the name) does allow you to change the packet size.

As for random responses from your router, that's pretty strange Question

moke

Hortalonus · Posted: Thu Aug 29, 2002 3:37 pm Post subject:

Hey moke!

I thought it was a little odd that I could set TTL and timeout values but not packet size. But if that's the way it is then so be it. It's still a great DLL.
I may give vdsping.dll a look, too. Thanks for the tip! Smile

I also wonder about the extremely high time value for the reply from my router. If I ping the router directly, the reply is always <10ms.
Also, while playing with this script, I have recieved replys from random nodes along the route (found using traceroute) to the destination IP, also with very high ping times.
I am wondering if I need to create a simple filter to drop any reply other than from the IP I'm pinging.

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1565

Hi,
I do remember adding in packet size but for some odd reason I seemed to have removed it. If you or anyone here else knows Delphi it would be really easy to update the dll since it is included with source to add in the packet size option. I'm really not sure why a subnet would reply back in a ping request either. Please realize I did not program these internet protocols, rather the vdsipp wraps around the Indy Delphi components (http://www.nevrona.com/Indy). There is a newer version out of Indy and I'm sure it fixes many bugs, but it would require alot of changes in the vdsipp and a recompilation.

Hortalonus · Posted: Fri Aug 30, 2002 2:20 pm Post subject:

I noticed that several of the features in vdsipp.dll are not yet implemented and I was wondering if you are planning to add them in the future.
If so, perhaps you could put the packet size option back in. Very Happy

Until then I may use Tommy's vdsping.dll (since I haven't yet learned Delphi). Thanks for the reply Prakash!

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1565

Well the dll was originally shareware but had very low interest. I then became very busy working on other projects so I made the dll freeware and open-source due to not being able to update it. In honesty I sincerely doubt that I will add much more to the vdsipp, I may try if I get some free time to update vdsipp to use Indy 9 though. Since the dll is open source and freeware I was hoping other developers would like to update it and make it the standard IP package for vds, unfortunately it hasn't turned out that way Sad

Hortalonus · Posted: Fri Aug 30, 2002 3:10 pm Post subject:

Maybe posting a notice in the Open Source forum that you would like to see the dll more fully developed would spark some interest. I for one didn't realize it was now open source. Perhaps others are also unaware of the fact.

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

I wasn't aware of that either. Very Happy

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1565

Well there is a source code directory included with the dll with the source code Smile

I guess I should have posted it somewhere that it was open source.