Alcatel SPEED TOUCH 710, User Manual

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PPPtoDHCP Spoofing
Result
10 Configuration and Use - PPP & IP Routing
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3EC 17605 AAAA TCZZA Ed. 02
A second technique is to use the PPPtoDHCP Spoofing feature of
the AST710 . The network configuration is practically identical to
the one described above:
Step Action
1 Install two Ethernet PCNICs in a PC.
2 Install an OS on this PC that has routing capabilities, e.g. Windows
NT, UNIX, Linux, etc.
3 Install on this PC a NAT/PAT package that supports all TCP/IP
protocols.
Now this PC can act as some
'home gateway' .
4 Connect (one of) the Ethernet interface(s) of the AST710 to the PC's
Ethernet PCNIC port.
5 Connect your local LAN to the other Ethernet PCNIC.
6 Configure the PC (acting as 'home gateway' ) as DHCP client.
7 Configure the AST710 as DHCP server.
8 DHCP in the AST710 must be configured for DHCP Spoofing. See
section 13.4 for more information.
9 At least one PPP connection must begin with the mnemonic "DHCP"
in its phonebook name, e.g. DHCP_Spoof.
As soon as a DHCP request from the home gateway hits
the AST710 , a PPPtoDHCP Spoofing connection is triggered.
The IP parameters that are negotiated with the remote peer, are
carried up to the home gateway via a DHCP reply message.