ZyXEL Vantage CNM User Guide - Page 58
Table 13
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Chapter 5 Device Network Settings Table 13 Device Operation > Device Configuration > LAN > LAN (ZyNOS ZyWALL) LABEL DESCRIPTION RIP Version The RIP Version field controls the format and the broadcasting method of the RIP packets that the device sends (it recognizes both formats when receiving). RIP-1 is universally supported but RIP-2 carries more information. RIP-1 is probably adequate for most networks, unless you have an unusual network topology. Both RIP-2B and RIP-2M sends the routing data in RIP-2 format; the difference being that RIP-2B uses subnet broadcasting while RIP-2M uses multicasting. Multicasting can reduce the load on non-router machines since they generally do not listen to the RIP multicast address and so will not receive the RIP packets. However, if one router uses multicasting, then all routers on your network must use multicasting, also. By default, RIP direction is set to Both and the Version set to RIP-1. Multicast Select IGMP V-1 or IGMP V-2 or None. IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to establish membership in a Multicast group - it is not used to carry user data. IGMP version 2 (RFC 2236) is an improvement over version 1 (RFC 1112) but IGMP version 1 is still in wide use. If you would like to read more detailed information about inter operability between IGMP version 2 and version 1, please see sections 4 and 5 of RFC 2236. Filter (IP/MAC Binding) Drop packets that do not match static IP or Dynamic IP/ MAC binding Select this to allow traffic only from devices on the LAN which have received an IP address from the selected device. This is done by allowing traffic only from devices on the LAN with specific combinations of IP and MAC addresses. These IP addresses are dynamically assigned by the the selected device or manually set using static DHCP. Click static IP to go to the Device Configuration > Network > LAN > Static DHCP screen for a list of static IP/MAC address combinations. Exempt packets in this IP address range. Set the selected device to allow packets from the LAN with source IP addresses within a specified range. This allows packets even when their IP and MAC addresses do not match those specified in the Device Configuration > Network > LAN > Static DHCP screen. Type this range of IP addresses in the From and To fields. Windows Networking (NetBIOS over TCP/IP): NetBIOS (Network Basic Input/Output System) are TCP or UDP broadcast packets that enable a computer to connect to and communicate with a LAN. For some dial-up services such as PPPoE or PPTP, NetBIOS packets cause unwanted calls. However it may sometimes be necessary to allow NetBIOS packets to pass through to the WAN in order to find a computer on the WAN. Allow between LAN and WAN1 Select this check box to forward NetBIOS packets from the LAN to WAN port 1and from WAN port 1 to the LAN. If your firewall is enabled with the default policy set to block WAN port 1 to LAN traffic, you also need to enable the default WAN port 1 to LAN firewall rule that forwards NetBIOS traffic. Clear this check box to block all NetBIOS packets going from the LAN to WAN port 1 and from WAN port 1 to the LAN. 58 Vantage CNM User's Guide