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Forum Discussion

MAbbas's avatar
MAbbas
Icon for Cirrus rankCirrus
Jun 29, 2018

2 ips with 1 Mac address

hi i am seeing 2 ip addresses associated with 1 MAC - address the F5 has just 1 interface and 1 vlan (Azure deployment) 12:34:56:78:9a:bc net arp 10.8.XX.42(second f5 in device group) mac-add...
application delivery
BIG-IP
LTM
boneyard's avatar
boneyard
Icon for MVP rankMVP
Jul 07, 2018

in general there is nothing weird with multiple IP addresses and 1 MAC address. as long as that MAC address belong to one device / interface.

 

but you are working on a cloud service so MAC addresses are often manipulated by the cloud provider. on cloud services i usually "ignore" layer 2 and lower. and i seriously doubt the MAC address situation is causing a slow javascript download (but not other things?).

 

the test seems quite easy, shutdown the second BIG-IP and see if the situation changes with only one MAC address.