D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: hispanico on October 13, 2008, 01:13:40 PM
-
I have 2 computer in the same network, all with windows vista 32bit....the firts is at 192.168.0.1 and the second is at 192.168.03....in the log of router i have a lot, lot of this message:
[INFO] Mon Oct 13 21:50:34 2008 Blocked outgoing ICMP packet (ICMP type 3) from 192.168.0.3 to 1.242.1.98
[INFO] Mon Oct 13 21:50:34 2008 Blocked outgoing ICMP packet (ICMP type 3) from 192.168.0.3 to 39.234.169.93
[INFO] Mon Oct 13 21:50:33 2008 Blocked outgoing ICMP packet (ICMP type 3) from 192.168.0.3 to 22.244.180.249
only at machine 192.1.68.0.3,...while at address 192.168.0.2 nothing.
What is ??
Thank
Hyspa
-
That is your router blocking messages from internal PCs that they are not accepting connections on the ports listed. If a host does not allow connections to a particular port (or from a particular port or IP) then it with either send back a ICMP type 3 packet informing the remote host the port will not accept connections (it is closed) or it will silently drop the communication (it is stealthed).
This router is forcing your PC to drop those ICMP packets (and therefore make it stealthed) by dropping them and logging the drop on it's way out, this is considered best security practice and is allowed by the standards.
The reason only 192.168.0.3 is causing these messages is because you have either manually or through UPnP opened those ports to it, or you have a connection from that port to that host/port still in the state table, and it is not listening in on them (anymore).
** Edited for spelling and grammer and to remove slip ups in terminology**
-
Thank...so if i understand well is normal for my configuration..or you advise some settings for not have these message ??
Hyspa
-
You can safely ignore them.