Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH 사용자 설명서
Chapter 20. IPv4 Unicast Routing
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NETGEAR 8800 User Manual
In
, all stations are configured to use the address 10.3.2.1 for the default router.
VLAN Aggregation Properties
VLAN aggregation is a very specific application, and the following properties apply to its
operation:
operation:
•
All broadcast and unknown traffic remains local to the subVLAN and does not cross the
subVLAN boundary. All traffic within the subVLAN is switched by the subVLAN, allowing
traffic separation between subVLANs (while using the same default router address
among the subVLANs).
traffic separation between subVLANs (while using the same default router address
among the subVLANs).
•
Hosts can be located on the superVLAN or on subVLANs. Each host can assume any IP
address within the address range of the superVLAN router interface. Hosts on the
subVLAN are expected to have the same network mask as the superVLAN and have
their default router set to the IP address of the superVLAN.
subVLAN are expected to have the same network mask as the superVLAN and have
their default router set to the IP address of the superVLAN.
•
All IP unicast traffic between subVLANs is routed through the superVLAN. For example,
no ICMP redirects are generated for traffic between subVLANs, because the superVLAN
is responsible for subVLAN routing. Unicast IP traffic across the subVLANs is facilitated
by the automatic addition of an ARP entry (similar to a proxy ARP entry) when a
subVLAN is added to a superVLAN. This feature can be disabled for security purposes.
is responsible for subVLAN routing. Unicast IP traffic across the subVLANs is facilitated
by the automatic addition of an ARP entry (similar to a proxy ARP entry) when a
subVLAN is added to a superVLAN. This feature can be disabled for security purposes.
VLAN Aggregation Limitations
The following limitations apply to VLAN aggregation:
•
No additional routers may be located in a subVLAN. This feature is only applicable for
“leaves” of a network.
•
A subVLAN cannot be a superVLAN, and vice-versa.
•
SubVLANs are not assigned an IP address.
•
A subVLAN should belong to only one superVLAN.
•
A subVLAN or superVLAN should not be added to a private VLAN
•
Before you can delete a superVLAN, you must delete all subVLANs in that superVLAN.
•
When configuring a subVLAN address range, all addresses in the range must belong to
the superVLAN subnet.
SubVLAN Address Range Checking
You can configure subVLAN address ranges on each subVLAN to prohibit the entry of IP
addresses from hosts outside of the configured range.
addresses from hosts outside of the configured range.
To configure a subVLAN range, use the following command:
configure vlan <vlan_name> subvlan-address-range <ip address1> - <ip address2>
To remove a subVLAN address range, use the following command:
unconfigure vlan <vlan_name> subvlan-address-range