Traffic on the External Management network, VLAN 1811, must be able to reach the DNS server on the external network during deployments. To accomplish this step with L3 uplinks, an IP address is assigned to each leaf switch on virtual network 1811. An anycast gateway address shared by all leafs is also configured on the same network.
Because this is on virtual network 1811, use the available IP addresses in the 172.18.11.0/24 address block in the following table.
Item | IP address/prefix |
Leaf1A IP address | 172.18.11.253/24 |
Leaf1B IP address | 172.18.11.252/24 |
Leaf2A IP address | 172.18.11.251/24 |
Leaf2B IP address | 172.18.11.250/24 |
Gateway IP address | 172.18.11.254/24 |
To configure the IP addresses and the gateway, perform the following steps.