[pptp-server] "proxyarp" or " route"

[George Vieira]

proxyarp should be running on the server side (PPTPD).
Can the (x.x.x.1) client ping x.x.x.2 OK as well as x.x.x.3 . Or does it
ping only the .2 server?

Your logs should also mention about proxyarp attaching to the ETH0/1/2
device. eg.
<var_log_messages>
"Dec  4 06:43:27 linuxdev pppd[24131]: found interface eth0 for proxy arp"
</var_log_messages>

This means that proxy arp is using the local ETH0 device to listen for
requests to x.x.x.1

Can you sent us some logs on the server side.

-----Original Message-----
From: Zhu Xiaofeng [mailto:xfzhu at seu.edu.cn]
Sent: Wednesday, December 06, 2000 6:02 PM
To: George Vieira
Cc: PPTP List (E-mail)
Subject: Re: [pptp-server] "proxyarp" or " route"


My question is :
When PPTP client connect to PPTP(PoPToP) server , it set up a ppp connection
between Server and Client . And Client get an IP for PPP client side
and Server get an IP for PPP server side .
Is it the PPP client side IP address "proxyarp"
or the PPP server side IP address "proxyarp"?

            Client <-------PPP OVER PPTP--------> SERVER
            x.x.x.1                                x.x.x.2
Though on x.x.x.3 ping x.x.x.1 and x.x.x.2:
x.x.x.1 is not accessable
x.x.x.2 is accessable.

But when I use Microsoft PPTP server , the result is   on the contrary.

I use sniffer to watch  IP data .It didn't seem that ARP reply  was sent out
as what I had thought by PoPToP SERVER .

----- Original Message -----
From: "George Vieira" <georgev at citadelcomputer.com.au>
To: "'Zhu Xiaofeng'" <xfzhu at seu.edu.cn>
Cc: "PPTP List (E-mail)" <pptp-server at lists.schulte.org>
Sent: Tuesday, December 05, 2000 11:43 AM
Subject: RE: [pptp-server] "proxyarp" or " route"


> I think you need IP forwarding (Not IP masquerading) turned on..
>
> Have your got any IPCHAINS rules turned on which might be killing it?
> Can you use tcpdump to determine where the pings are going?
>
>
> -----Original Message-----
> From: Zhu Xiaofeng [mailto:xfzhu at seu.edu.cn]
> Sent: Tuesday, December 05, 2000 1:55 PM
> To: pptp-server at lists.schulte.org
> Subject: [pptp-server] "proxyarp" or " route"
>
>
> Hi everyone:
>
>    I setup PoPToP 1.0.0 on my Turbo linux 6.0 . My network configuration
is
> following:
>
>          PoPToP server          cisco router
>           x.x.24.198   <-------->  x.x.24.1 <----> real Internet
>               |
>               |
>               |
>          win2000
>          x.x.24.99
>
> /etc/ppp/options
>
> debug
> name linux
> auth
> require-chap
> proxyarp
>
> /etc/pptpd.conf
>
> option /etc/ppp/options
> debug
> speed 115200
> localip x.x.24.220-229
> remoteip x.x.24.230-239
>
>  My idea is to let x.x.24.99 dial on x.x.24.198 via PPTP to access real
> Internet.
> All address are real IP addresses.I don't think it need NAT or IP MASQE
.Is
> it OK?
> Should I do more configration on x.x.24.198 ?
>
>   When I dial up from x.x.24.99 to  x.x.24.198 ,win2000 get PPP client
> address x.x.24.230 and PPP
> server address is x.x.24.220 . Ping x.x.24.230 is not accessable but
> x.x.24.220 is accessable from other
> computer x.x.24.200 .I don't know much about "proxyarp",but I think it is
> x.x.24.230 that can be accessable.
> Why?
>
>
> xfzhu.
>
>
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