EnableIpForwarding sets forwarding to 1 for both IPv4 and IPv6 if applicable.

GetNodeMetadata calling node local imds metadata service using provided key return either a non-empty value or an error.

IPsSimilar checks if ipPool and eniIPs are equivalent.

IsIptableTargetNotExist returns true if the error is from iptables indicating that the target does not exist.

IsLinkNotFoundError return true if err contains "Link not found".

PrefixSimilar checks if prefix pool and eni prefix are equivalent.

WaitForAddressesToBeStable Implements `SettleAddresses` functionality of the `ip` package.