Azure LB Alternatives

https://techcommunity.microsoft.com/t5/azure-architecture/haproxy-configuration-with-keepalived-in-azure-environment/m-p/1504467

https://www.reddit.com/r/devops/comments/ag0rmi/azure_generic_ha_setup_internal_load_balancer/

myuser@4-k8s:~$ sudo tcpdump -ni eth0 arp
[sudo] password for myuser:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
21:09:14.877981 ARP, Request who-has 10.1.1.184 tell 10.1.1.183, length 28
21:09:14.878293 ARP, Reply 10.1.1.184 is-at 12:34:56:78:9a:bc, length 28
21:09:39.965974 ARP, Request who-has 10.1.1.184 tell 10.1.1.183, length 28
21:09:39.966379 ARP, Reply 10.1.1.184 is-at 12:34:56:78:9a:bc, length 28

myuser@3-k8s:~$ sudo arping -c 2 10.1.1.183
ARPING 10.1.1.183
42 bytes from 12:34:56:78:9a:bc (10.1.1.183): index=0 time=442.308 usec
42 bytes from 12:34:56:78:9a:bc (10.1.1.183): index=1 time=364.507 usec

Looks like azure or we are doing some layer2 filtering as I don't see the arp request.

myuser@3-k8s:~$ ^C
myuser@3-k8s:~$ sudo arping -c 2 10.1.1.182
ARPING 10.1.1.182
Timeout
Timeout

— 10.1.1.182 statistics —
2 packets transmitted, 0 packets received, 100% unanswered (0 extra)