54
R
ESET/DEFAULT BUTTON
CHAPTER 6 TROUBLESHOOTING
Partial Reset
You can perform a partial reset of the EX Controller to:
• Reset the password of the EX Controller Web GUI. For example, if you have forgotten the password.
• Contact the unit in a known state when you can no longer access the EX Controller Web GUI. For
example, due to modified configuration. In such case, you can manage the EX Controller using the
Rescue Network Interface. The Rescue Network Interface is bound to the WAN port ETH1 of the unit
and accessible through the IP address 192.168.0.1. (IPv4) or an IPv6 Link Local address.
The Rescue Network Interface is used for:
– Completing the configuration of a new unit.
– Modifying existing configuration.
By default, the Rescue Network Interface is disabled. When a partial reset is performed, the Rescue
Network Interface becomes enabled and the Power and Ready LEDs are blinking at 1Hz with 75%
duty and all other LEDs are off. Once the configuration has been modified to solve the problem that
required the partial reset, it is important to disable the Rescue Network Interface to make sure that
you are no longer working in the Rescue Network Interface.
Partial reset on a new EX Controller does not modify its configuration. However, a partial reset performed
on an EX Controller already in use will:
• Rollback Local Firewall settings that are not yet applied.
• Add a Local Firewall rule to allow complete access to the Rescue Network Interface.
• Rollback NAT settings that are not yet applied.
• Cancel the changes that were being modified but not yet applied to the configuration.
• Add NAT rule to allow complete access to the Rescue interface.
• Disable any Network Interface in conflict with the Network Rescue Interface.
• Configure and enable the Rescue Network Interface to:
– use the link as the default value used by Uplink Network interface
– set the IP address to 192.168.0.1 and the Network Mask to 255.255.255.0
– set the IPv6 link-local address on all network links. The IPv6 link-local address can be underneath
the EX Controller.
A partial reset will also modify the following parameters and preserve the values below even after the
Rescue Network Interface has been disabled.
Service Parameter Default Value
AAA Users.Password admin and pubic users from profile are restored
with their factory password. All other user
names keep their password.
Users.AccessRights User(s) from profile are restored with their
factory rights.
ServicesAaaType (table) Each service will be configured to use Local
authentication and no accounting mechanism.
CLI EnableTelnet Disable
TelnetPort 23
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