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The Graveyard - Products No Longer Supported => D-Link NetDefend Firewalls => Topic started by: jmarin10 on April 04, 2011, 11:18:51 AM

Title: /22 subnet and getting 6000051 with internal LAN traffic with DFL-210
Post by: jmarin10 on April 04, 2011, 11:18:51 AM

DFL-210
lan_ip 192.168.0.1
lannet 192.168.0.0/22

I have 3 computers that I am provisioning this network with.
win 2k3 server with ip 192.168.0.3
web enabled cmts with ip 192.168.0.14
xp laptop with ip 192.168.2.15

I can access the cmts web interface from the .0.3 machine but not from the .2.15.
I see a "Warning RULE 6000051 Default_Rule TCP destination port 80" when I try to access the .0.14 machine.

I have changed the .2.15 ip address to .0.15 and I can access the .0.14 web page no problem.

Am I missing a route or a rule somewhere?

I tried searching for a solution but didn't find much info on /22 networks.

Thank you for any help and I am sorry if I made this more confusing then it should have been.

Title: Re: /22 subnet and getting 6000051 with internal LAN traffic with DFL-210
Post by: lingnau on April 05, 2011, 11:48:55 AM

If you see a warning when you acess one PC from another one in the same network, the network setup on the PC must be wrong, maybe it has subnet 255.255.255.0 ?
If the networking is correct, the 192.168.2.15 should not need the gateway to access 192.168.0.14 or 192.168.0.3.

Those PC´s should have netmask 255.255.252.0