Allied Telesis RAPIER I - Manual (Page 165)

Software Version 2.8.1 165
Software Version 2.8.1
C613-10477-00 REV B
Table 43: Parameters in output of the show firewall sipalg command
Parameter Meaning
SIP ALG Configuration The current SIP ALG settings on the router or switch.
Status Whether the SIP ALG is “enabled” or “disabled” on the router
or switch.
CALL-ID translation Whether Call-ID translation is “enabled” or “disabled” on
router or switch. When enabled, the IP address portion of the
Call-ID field is translated from a private IP address to the global,
routable IP address of router or switch. The router or switch
only translates this when the session is initiated by a device
within the private network protected by the firewall.
Active SIP Sessions Details about current SIP sessions using the SIP ALG, including
information about the current audio sessions for each SIP
session.
CALL-ID The unique call identifier assigned to the SIP session by the
device that initiated the session. The Call-ID includes the IP
address of the device that initiated the SIP session.
TO The SIP URI address of the device that received the SIP session
request.
TO tag The tag number assigned to the SIP session by the device that
received the SIP session request. The router or switch uses this,
along with the FROM tag and the Call-ID, to identify a current
SIP session.
FROM The SIP URI address of the device that initiated the SIP session
request.
FROM tag The tag number assigned to the SIP session by the device that
initiated the SIP session request. The router or switch uses this,
along with the TO tag and Call-ID, to identify a current SIP
session.
Direction The location of the devices using the SIP session, and who
initiated the call. "Private" indicates a device located within the
firewall, "public" indicates the device located outside of the
firewall. The device that initiated the call is listed first. For
example, "Private to public" indicates that a device from within
the firewall initiated a SIP session to a device on the public side
of the firewall.
Audio Session Details about the current audio sessions using the SIP session.
The number in brackets indicates the direction of the call; [1] is
private to public, and [2] is public to private.
RTP Details about the Real-time Transport Protocol (RTP). RTP carries
the audio data.
RTCP Details about the Real-time Transport Control Protocol (RTCP).
RTCP provides feedback to applications about RTP’s quality of
service.
IP This IP address is the source address of outbound packets and
the destination address of inbound packets in this session, as
seen on the private side of the firewall.
Remote IP This IP address is the destination address of outbound packets
and the source address of inbound packets in this session, as
seen on the private side of the firewall.