any ideas? I need some help... [Archive] - SpeedGuide.net Broadband Community

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crazyman
05-27-01, 03:17 PM
Your IP Address
Conclusion: Possible Problem! We did get information from scanning your ports, this information could encourage attackers to probe further. Do you know why you are advertising these services to the net? perhaps installation of a firewall, or reconfiguration of your firewall to be more secure, would provide peace of mind.
ALL TCP
FILTERED No response (open or closed) to an open request was received.

other UDP
CLOSED We received a response that this port was closed.

UDP 67
is OPEN We have no specific hints for this port number just yet. We are monitoring results though, and we add advice for port numbers that come up frequently.

UDP 69
is OPEN We have no specific hints for this port number just yet. We are monitoring results though, and we add advice for port numbers that come up frequently.


I have a linksys router,and @home internet,how can I make this more secure without firewall software? I have 4 pc's here too.

Matt615
05-27-01, 05:23 PM
on the router make sure you dont have any ports forwarded because that will leave them open. Other than that make sure file and printer sharing or Client for MS is not bound to any of the TCP/IP protocols.

Why dont you want to run a software firewall????

It would cover up those open ports. :)

crazyman
05-27-01, 07:34 PM
I just don't like how much sys rec ZA ate up,I had it before,you're right,I should put it back on....

TonyT
05-27-01, 08:58 PM
Here's why you should have that softwall running -

Ports 67 and 68 - bootp/DHCP

Bootp/DHCP over UDP. Firewalls hooked to DSL and cable-modem lines see a ton of these sent to the broadcast address 255.255.255.255. These machines are asking for an address assignment from a DHCP server. You could probably hack into them by giving them such an assignment and specifying yourself as the local router, then execute a wide range of man-in-the-middle attacks. The client requests configuration on a broadcast to port 68 (bootps). The server broadcasts back the response to port 67 (bootpc). The response uses some type of broadcast because the client doesn't yet have an IP address that can be sent to.

Port 69 -TFTP

(over UDP). Many servers support this protocol in conjunction with BOOTP in order to download boot code to the system. However, they are frequently misconfigured to provide any file from the system, such as password files. They can also be used to write files to the system.