Ipv4 Address Formats; Ipv6 Address Formats; Limitations; Port Lockout - Polycom RealPresence Group 550 Administrator's Manual

Administrator's Guide for the Polycom RealPresence Group Series
2 Select address type IPv4 or IPv6.
3 In the address text field, enter the IP address of the system you want to allow. Follow the format
suggested by the address type you selected. Select Add.
Repeat this step for all the IP addresses you want to add. You can add web server and SNMP
addresses.
If you entered an address in error, highlight the address in the list and select Clear.

IPv4 Address Formats

The whitelist configuration requires single IP addresses, a range of addresses, or an IP and netmask. The
netmask represents the number of valid bits of the IPv4 address to use. The following are valid IPv4 formats:
● 10.12.128.7
● 172.26.16.0/24

IPv6 Address Formats

For IPv6 addresses, you can use Classless Inter-Domain Routing (CIDR) notation to represent a range of
IP addresses. The following are valid IPv6 formats:
● ::1
● 2001:db8:abc:def:10.242.12.23
● 2001:db8::/48
● 2001:db8:abcd:0012::0/64
● 2001:0db8:85a3:0000:0000:1234:0abc:cdef

Limitations

The system can accept up to 30 IP address entries for the whitelist.

Port Lockout

Port lockout protects against brute-force attacks by temporarily locking the login port after a configurable
number of unsuccessful login attempts have been made, regardless of which account was used. It is
supported only on the web interface.
The telnet port has its own port lock feature that is enabled regardless of the state of the port lock
feature configuration. Specifically, the telnet server disconnects a telnet login session after 5 failed
login attempts. If a new session is started, another 5 attempts are allowed.
To configure the port lockout feature:
1 In the web interface, go to Admin Settings > Security > Global Security > Access.
2 Configure these settings and click Save.
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