Setting Transfer Mode Of Avp Data - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
Set
authentication.
Remove
authentication.
By default, tunnel authentication is enabled, with the password being null. For the sake
of tunnel security, you are not recommended to disable tunnel authentication.

2.3.7 Setting Transfer Mode of AVP Data

AVP is adopted in L2TP protocol to move and negotiated some attribute parameters of
L2TP. By default, AVP is transferred in plain text. For security, users can hide these
AVP in transmission by using the following configuration. The function of hidden VAP
only works when both of the two ends use tunnel authentication.
These configurations are optional on LNS side.
Perform the following configuration in L2TP group view.
Table 2-25 Set the transfer mode of AVP data
Configure hidden AVP data for transfer.
Restore default transfer mode of AVP.
By default, AVP is transferred in plain text.
2.3.8 Setting Hello Interval in Tunnel
In order to check the connectivity of the tunnel between LAC and LNS, LAC and LNS
send Hello packets to each other periodically and the receiver will respond upon the
receipt of the packets. If LAC or LNS does not receive response from the peer end in a
specified interval, it will resend Hello packet and will regard the L2TP tunnel connection
has been disconnected if receiving no response after making three transmission
attempts. In this case, LAC and LNS need to set up a new tunnel connection.
This configuration is optional on LNS side.
Perform the following configuration in L2TP group view.
Table 2-26 Set Hello interval
Set Hello interval.
Operation
a password for
the password for
Operation
Operation
3Com Corporation
Chapter 2 Configuration of L2TP
tunnel tunnel password { simple | cipher }
password
tunnel
undo tunnel password
tunnel avp-hidden
undo tunnel avp-hidden
tunnel timer hello hello-interval
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Command
Command
Command