How Do I Implement Communication Between Some Sub-VLANs in a Super-VLAN?

Created Mar 28, 2016 20:15:22Latest reply Mar 29, 2016 09:29:01 777 1 0 0
How Do I Implement Communication Between Some Sub-VLANs in a Super-VLAN?
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jack_6     Created Mar 29, 2016 09:29:01 Helpful(0) Helpful(0)


When VLAN aggregation is configured, hosts in a super-VLAN use IP addresses on the same network segment and share the same gateway address. Hosts in different sub-VLANs belong to the same subnet, so the switch forwards packets between the hosts by searching for ARP entries but not through the gateway. Proxy ARP allows the switch to establish ARP entries for all sub-VLANs for interworking.

To implement interworking between some sub-VLANs, configure static ARP entries to bind destination MAC addresses to the gateway IP address on hosts in the sub-VLANs.

For example, when host A with the gateway IP address of 192.168.1.1/24 wants to access host B with the MAC address of 00-aa-00-62-c6-09, perform the following operations:
Choose Start > Run, enter cmd, and press Enter.
Enter arp -s 192.168.1.1 00-aa-00-62-c6-09.
After the preceding configuration is complete, host A can access host B. If host B needs to access host A, configure a static ARP entry to bind host A's MAC address to the gateway IP address on host B.

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