ICMP Overview window
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Models 2616RC, 3096RC & 3196RC Admin Reference Guide
12 • IP (IP, TCP, UDP, & ICMP)
ICMP Overview window
When networking problems or undesirable conditions occur, the ICMP protocol is used for communicating con-
trol or error information plus testing. The statistics listed on the T-DAC ICMP window (see
figure 115
) comprise
those contained in
RFC 792—Internet Control Message Protocol (ICMP)
. Implementation of the ICMP group is
mandatory for all TCP/IP networks.
RFC 1312—ICMP Group of MIB-II Variables
—provides the definitions of
these variables. It is important to remember that any RFC can be superseded by a newer version.
Figure 115. ICMP Overview window
To display the
ICMP Overview
window, on the T-DAC configuration menu pane, click the ICMP hyperlink
The
ICMP Overview
window provides the means for you to manage the T-DAC’s ICMP subsystem. Managing
the T-DAC’s ICMP subsystem involves monitoring ICMP statistics, and defining whether the T-DAC will
receive or block ICMP Redirect messages sent from gateway routers and/or hosts.
ICMP Parameters
The
ICMP Parameters
section of the
ICMP Overview
window (see
figure 115
) is where you can define whether
the T-DAC will receive or block ICMP Redirect messages sent from gateway routers and/or hosts.
ICMP Redirects (boxBlockIcmpRedirects)
The two options for “Block ICMP Redirects” either allow the reception of ICMP Redirect messages
(allowRedirects(0)) or block the reception of ICMP Redirect messages (stopRedirects(1)). The recommended