Dear all,
I have a problem with using ppp-dhcp plugin for
dynamic IP allocation with
rp-l2tpd/IPsec. I am testing the following setup
XP (192.168.2.50) <---> (192.168.2.1)[eth0]Linux
(192.168.1.200)[eth1]<->192.168.1.128/25
(192.168.2.50/192.168.2.1 is now a cross cable
connection. Eventually the XP will come in from the
hostile internet using random IPs)
I have a DHCP server running on the Linux machine,
listening on eth1, serving IP range 192.168.1.129 to
192.168.1.254.
I have ppp-dhcp plugin running, and options file for
pppd includes:
plugin dhcpc.so
dhcp-interface eth1
192.168.1.98: <- for the local end of the PPP
tunnel
When the XP connects via L2TP/IPsec, pppd fired up and
dhcpc.so offered DHCPDISCOVER, and from the logs,
DHCPD did reply, but the IP offered could not be
passed on:
Sep 16 16:24:34 notebook1 pppd[17080]: Plugin dhcpc.so
loaded.
Sep 16 16:24:34 notebook1 pppd[17080]: DHCPC: plugin
initialized
Sep 16 16:24:34 notebook1 pppd[17080]: pppd 2.4.2b3
started by root, uid 0
Sep 16 16:24:34 notebook1 pppd[17080]: Using interface
ppp0
Sep 16 16:24:34 notebook1 /etc/hotplug/net.agent:
assuming ppp0 is already up
Sep 16 16:24:34 notebook1 pppd[17080]: Connect: ppp0
<--> /dev/pts/3
Sep 16 16:24:37 notebook1 pppd[17080]: DHCPC: Using
relay address of '192.168.1.200'
Sep 16 16:24:37 notebook1 pppd[17080]: DHCPC:
Broadcasting to servers on interface 'eth1'
Sep 16 16:24:37 notebook1 pppd[17080]: DHCPC: Sending
discover...
Sep 16 16:24:37 notebook1 dhcpd: DHCPDISCOVER from
00:02:2d:56:ae:5d via 192.168.1.200
Sep 16 16:24:38 notebook1 dhcpd: DHCPOFFER on
192.168.1.199 to 00:02:2d:56:ae:5d via 192.168.1.200
Sep 16 16:24:39 notebook1 pppd[17080]: DHCPC: Sending
discover...
Sep 16 16:24:39 notebook1 dhcpd: DHCPDISCOVER from
00:02:2d:56:ae:5d via 192.168.1.200
Sep 16 16:24:39 notebook1 dhcpd: DHCPOFFER on
192.168.1.199 to 00:02:2d:56:ae:5d via 192.168.1.200
Sep 16 16:24:41 notebook1 pppd[17080]: DHCPC: Sending
discover...
Sep 16 16:24:41 notebook1 dhcpd: DHCPDISCOVER from
00:02:2d:56:ae:5d via 192.168.1.200
Sep 16 16:24:41 notebook1 dhcpd: DHCPOFFER on
192.168.1.199 to 00:02:2d:56:ae:5d via 192.168.1.200
Sep 16 16:24:51 notebook1 pppd[17080]: DHCPC: No
lease, failing.
Sep 16 16:24:51 notebook1 pppd[17080]: DHCPC: Failed
to obtain an IP address. Terminating connection.
Sep 16 16:24:51 notebook1 pppd[17080]: Exit.
The ethernet address is the inner interface (eth1).
I am not sure why this is happening - the relay does
not seem to be working.
Has anyone successfully used the ppp-dhcp plugin with
rp-l2tpd? I'd appreciate
any help I can get here.
Thanks much in advance,
Chee Wai
=====
~~~~~~~~~~~~~~
Chee-Wai Yeung
Email: [EMAIL PROTECTED]
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