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d86ab8ea4d
Signed-off-by: B. Watson <yalhcru@gmail.com>
21 lines
1.1 KiB
Text
21 lines
1.1 KiB
Text
xl2tpd is an implementation of the Layer 2 Tunnelling Protocol
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(RFC 2661). L2TP allows you to tunnel PPP over UDP. Some ISPs use
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L2TP to tunnel user sessions from dial-in servers (modem banks, ADSL
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DSLAMs) to back-end PPP servers. Another important application is
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Virtual Private Networks where the IPsec protocol is used to secure
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the L2TP connection (L2TP/IPsec, RFC 3193). The L2TP/IPsec protocol
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is mainly used by Windows and Mac OS X clients. On Linux, xl2tpd can
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be used in combination with IPsec implementations such as Openswan.
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Example configuration files for such a setup are included in this RPM.
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xl2tpd works by opening a pseudo-tty for communicating with pppd.
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It runs completely in userspace but supports kernel mode L2TP.
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xl2tpd supports IPsec SA Reference tracking to enable overlapping
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internak NAT'ed IP's by different clients (eg all clients connecting
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from their linksys internal IP 192.168.1.101) as well as multiple
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clients behind the same NAT router.
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xl2tpd supports the pppol2tp kernel mode operations on 2.6.23 or higher,
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or via a patch in contrib for 2.4.x kernels. Note that kernel mode and
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IPsec SA Reference tracking do not yet work together.
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