92
SBC session border controllers
Table 20 — Blocking messages
Message in the list
Reason for the occurrence
SIP message
Request error: REGISTER failed :
Resource limit overflow
Dynamic user registration limit reached
Response 403
Request error: REGISTER failed :
Unknown user or registration domain
Requesting the registration of an unknown
user
Response 403
Request error: REGISTER failed : Server
doesn’t allow a third party registration
Registration request with different To and
From headings
Response 403
Request error: REGISTER failed :
Authentication is wrong
Incorrect login/password
Response 403
Request error: REGISTER failed :
Wrong de-registration
Attempted deregistration of an unregistered
contact by a user
Response 200
Request error: REGISTER failed :
Request from disallowed IP
Attempting to register from an address other
than an allowed address
Response 403
Request error: INVITE failed : No
registration before
A call attempt from a user who is known but
whose contact has not been registered
Response 403
Request error: INVITE failed :
Registration is expired
A call attempt from a user who is known but
whose contact registration has expired
Response 403
Request error: INVITE failed :
Authentication is wrong
Incoming call or registration failed to be
authenticated
Response 403
Request error: INVITE failed :
Unknown original address
A call from an unknown destination
The call is forwarded to the
mgapp, where a decision is
made whether to allow or
reject it
Request error: INVITE failed : RURI not
for me
Unknown host name or address in RURI
Response 404
Request error: BYE failed :
Call/Transaction Does Not Exist
No dialogue found to accept the request
Response 481
SIP: INVITE rejected by the rule
id:name (%d:%s) : Forbidden —
Blocked by SB
The call falls under a rule with reject policy
-
SSH: Too many requests from address Failed SSH authentication attempts
-
WEB: Unknown user <%s> attempted
to access : password '%s'
Failed WEB authentication attempts
-
ANY: Manually by cmd from other
module or administrator
Blocking added via CLI or WEB by an
administrator
-
4.1.8.5
Static firewall
Firewall
is a package of software tools that allows for control and filtering of transmitted network packets in
accordance with the defined rules in order to protect the device from unauthorised access. A device may have up
to 32 profiles.
Firewall rules will not work to restrict access via HTTP/HTTPS, SSH, Telnet, SNMP, FTP. To restrict
access to these protocols, use the list of allowed IP addresses (section 4.1.8.6) and the settings for
activating services on network interfaces (section 4.1.4.3).
