Web page:
https://kb.isc.org/article/AA-00502/0/A-Basic-Guide-to-Configuring-DHCP-Failover.htmlge:
The ports used in the fail-over example are not necessarily "wrong"
but should
reflect the ports already assigned for fail-over communication:
dhcp-failover 647/tcp #
DHCP Failover
dhcp-failover 647/udp # DHCP Failover
dhcp-failover2 847/tcp # dhcp-failover 2
dhcp-failover2 847/udp # dhcp-failover 2
Also, selinux on Red Hat systems allows those ports without creating
an exception:
[0:root@c3po dhcp]$ semanage port -l |
grep dhcpd
dhcpd_port_t tcp 547, 548, 647,
847, 7911
dhcpd_port_t udp 67, 547, 548,
647, 847
Thanks for the online documentation. I'm hoping to improve it just
a little bit.
Bill
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