[pptp-server] New to PoPToP, routing issues..?
Cowles, Steve
Steve at SteveCowles.com
Tue Aug 21 17:26:03 CDT 2001
> -----Original Message-----
> From: Chris Storer [mailto:cstorer at infinitisystems.com]
> Sent: Tuesday, August 21, 2001 10:51 AM
> To: Josh Howlett
> Cc: pptp-server at lists.schulte.org
> Subject: RE: [pptp-server] New to PoPToP, routing issues..?
>
>
> Ok. Just fired up a client, authenticated just fine. Client received
> 10.19.33.202, with a netmask of 255.0.0.0 - is that strange??
Microsoft assigns the pptp netmask based on the class of network. In your
case the 10.0.0.0 network address is considered a class A which would have a
netmask of 255.0.0.0.
>
> Anyway...Here is from ifconfig for ppp0:
>
> ppp0 Link encap:Point-to-Point Protocol
> inet addr:10.19.33.200 P-t-P:10.19.33.202
> Mask:255.255.255.255
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1490 Metric:1
> RX packets:84 errors:0 dropped:0 overruns:0 frame:0
> TX packets:31 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:3
>
Looks good...
> Here is routing table:
>
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric
> Ref Use
> Iface
> 10.19.33.202 * 255.255.255.255 UH 0
> 0 0 ppp0
> 10.19.33.0 * 255.255.255.0 U 0
> 0 0 eth1
> 10.19.23.0 10.19.23.22 255.255.255.0 UG 0
> 0 0 eth0
> 10.19.23.0 * 255.255.255.0 U 0
> 0 0 eth0
> 127.0.0.0 * 255.0.0.0 U 0
> 0 0 lo
> default 10.19.23.1 0.0.0.0 UG 0
> 0 0 eth0
>
Looks OK!! The dual 10.19.23.0 is a little confusing though.
> Here is arp table:
>
> ? (10.19.23.7) at 00:D0:B7:69:2A:81 [ether] on eth0
> ? (10.19.23.1) at 00:02:17:60:D6:4C [ether] on eth0
> ? (10.19.33.202) at * PERM PUP on eth1
>
In your /var/log/messages file... do you see a statement that says something
like "found eth1 for proxy arp" after the local/remote ip assignment???
Without eth1 acting as a proxy arp for your PPTP client, the clients/servers
on your LAN will not be able to communicate with your PPTP client. Just the
PPTP server itself. Also is ip_forwarding enabled?
Steve Cowles
More information about the pptp-server
mailing list