Self IP not locked down for F5

Vendor

F5

Description

Best practices dictate that the self IP should be locked down to admin services. Indeni will alert if this is not the case.

Remediation Steps

Unless this is intentionally configured, such as a dedicated cable or VLAN for HA, it is always recommended to have the Self IP configuration set to "Allow None". Make sure to schedule a service window before configuring this option.

How does this work?

This alert logs into the device through SSH and uses TMSH to retrieve the port lockdown configiguration for all self IP's.

Why is this important?

Unless this is intentionally configured, such as a dedicated cable or VLAN for HA, it is recommended for security reasons to have the Self IP configuration to be set to "Allow None". In previous versions the default option when creating a self IP was to allow "Default" and that configuration would follow during upgrades. This metric keeps track of self IP's listening on any services. Please note that ICMP is implicitly allowed no matter what the port lockdown settings are, and does not need to be specified.

Without Indeni how would you find this?

An administrator could check this metric manually by logging into the device through TMSH and executing the command "list net self".

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