Installation guide

set pppoutbound
Chapter 2 Command Descriptions 107
lcp_keepalive={on|off}
Specifies whether the device server sends Link Control Protocol (LCP)
echo requests after a “quiet” interval, in order to test the PPP link and/or
keep it alive. “Quiet” means not having received any bytes over the PPP
link for a specified time interval, which is set by the “lcp_ka_quiet_time”
option. In PPP networks that support LCP echoes, an LCP echo reply is
returned by the remote end of the PPP connection.
Even if LCP keepalives are disabled in this device (by
“lcp_keepalive=off”), the device will still reply to LCP echo request
messages it may receive from the remote side of the PPP connection by
sending an LCP echo reply message. But the device itself will not
originate any LCP echo request messages.
The options are:
on
The device server sends LCP echo requests after a configurable
“quiet” interval, set by the “lcp_ka_quiet_time” option.
off
The device server does not send LCP echo requests.
lcp_ka_quiet_time=(10-86400 seconds)
Specifies the “quiet” interval, in seconds, after which the device server
sends an LCP echo request. “Quiet” means not having received any
bytes over the PPP link for the interval specified by this option.
lcp_ka_max_missed_replies={(2-255|0=ignore missed replies)}
Specifies how many consecutive echo replies may be missed before the
device server disconnects the PPP link. A value of 0 (zero) specifies that
the device server should not act on missed LCP echo replies by
disconnecting the PPP link. Note that if bytes of any kind, LCP echo reply
or otherwise, are received, the PPP link is deemed to be active, and the
“missed LCP echo replies” count is reset to zero.
asyncmap=hex_string
A mask for PPP connections that defines which of the 32 asynchronous
control characters to transpose. These characters, in the range 0x00 to
0x1f, are used by some devices to implement software flow control.
These devices may misinterpret PPP transmission of control characters
and close the link. This mask tells PPP which characters to transpose.
The default is FFFF, which means transpose all 32 control characters.
Any combination is valid. The following are the masks most likely used:
FFFFFFFF
Transpose all control characters.
00000000
Transpose none.
000A0000
Transpose Ctrl-Q and Ctrl-S.