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netbios-ns packets from VPN client

I have a PIX 515 with sw version 6.3.(3)and PDM version 3.0.(3).

When I connect to this firewall with the Cisco VPN client there is a constant stream of netbios-ns packets from the client to the firewall.

If I connect with the Microsoft PPTP client no netbios-ns packets are send.

Can somebody tell me why and how to stop de netbios-ns packets from the Cisco client

1 REPLY
Silver

Re: netbios-ns packets from VPN client

May be you can deny the ports

Source Port: 137 netbios-ns

Destination Port: 137 netbios-ns

in the pix firewall.

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