[pptp-server] Cannot determine ethernet address for proxy ARP

Jean-Paul Chavant chavant at geosys.fr
Tue Oct 3 05:45:03 CDT 2000


Hello,

when i connect to my VPN server i got this error :

Oct  2 12:26:09 endeavour pppd[7359]: Cannot determine ethernet address for
proxy ARP

I don't understand why ... :(

configuration : linux 2.2.14, ppp 2.3.11 with mppe/chap-ms v2 patch, pptp
1.0.0

/etc/ppp/options

debug
name endeavour
auth
require-chap
+chap
proxyarp            <==================== (pppd do proxy arp ...)
+chapms
+chapms-v2
mppe-40
mppe-128
mppe-stateless
ms-wins 192.168.1.3
lock


my arp table on the server :

Adresse                 TypeMap AdresseMat         Indicateurs
Iface
192.168.1.3             ether   08:00:20:A3:6E:DB   C
eth0
192.168.0.100           *       *                   MP
eth0
192.168.0.101           *       *                   MP
eth0
192.168.0.102           *       *                   MP
eth0
192.168.0.103           *       *                   MP
eth0

in my ip-up.local script i launch :

arp --set $REMOTE_IP_ADDRESS 00:80:C8:6A:92:A9 pub >> /var/log/ppp.log

(00:80:C8:6A:92:A9 is the MAC address of the interface of my VPN server
which is on my private LAN, is it correct ?)


(internet)----[VPN
SERVER]----LAN----[192.168.1.x]----(router)----[192.168.3.x]
              |          |
           x.x.x.x      192.168.1.252 (00:80:C8:6A:92:A9)



another question is :

- i can ping any network/computer when a win95 client (DUN 1.3 + 128bit
patch)
- i can only ping network/computer on network 192.168.1.x with a win98
client (win98 client + patch vpnupd.exe)

this problem is a known problem of win98 or it is because my proxy ARP
doesn't work well ?

someone can help me please ?

JPaul




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