Persistent Serial Tunnel Command - Siemens A53457 Installation & Maintenance

Wayside access gateway wag
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OPERATION
3.6

PERSISTENT SERIAL TUNNEL COMMAND

If two WAGs are configured for a PST, the tunnel will be established by one of the WAGs at power
up. In the diagram below WAGs 1 and 3 are configured for the PST.
WAG
At any time after the tunnel is established, the user can drop the tunnel and establish a "for the
duration tunnel" with another WAG as described below.
Preconfigured PST
between WAGs 1
WAG
"for the duration
tunnel" established
between WAGs 1
To drop the tunnel once it is established:
Once the PST is established, the user may drop the tunnel by typing tun and pressing Enter.
To establish a "for the duration tunnel":
If there is no Tunnel established and there is no Persistent Serial Tunnel IP address configured into
the WAG, the user may manually request a "for the duration tunnel" to a remote WAG by typing
tun followed by the IP address of the remote WAG.
For example, if the user types: tun 10.232.53.55
The WAG will show: Attempting Serial Tunnel to 10.232.53.55
This "for the duration tunnel" requires that both WAGs:
have the same Serial Telnet port numbers configured into them.
are listening on those port numbers by having them in their four "TCP ports are" configuration
options.
have their Serial Interface format configured for RAW.
Document No.: COM-00-05-16
Version: C.1
Preconfigured PST
and 3 dropped
WAG
PACKET SWITCH
WAG
WAG
WAG
SEAR
PACKET SWITCH
WAG
WAG
MCM
3-6
SEAR
MCM
June 2006, Revised June 2014

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