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Virtual PC 4, Using kppp with RedHat - problems!!

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Ningboy

Programmer
Sep 17, 2002
4
CA
Hi,

I'm having difficulty connecting to my ISP using kppp on RedHat 6.1 (versions 7.0 and over will not work on the Mac) over Virutal PC 4.0 (Mac). I am using an iMac DV SE, with it's internal modem. I have got this far:

* Modem config in VPC settings must be set to "non-modem device", otherwise although RedHat can "see" the modem, it constantly gets stuck at "Initialising Modem..."
* Added all the obvious information: DNS Servers, Account Details, Phone Number etc.
* ISP Dialup seems to start fine, and logs onto the network ok.
* route -n shows that the default gateway is correctly defined and not "0.0.0.0 0.0.0.0"
* ifconfig ppp0 also gives expected results
* Attempts to ping have very little success. Watching the modem "lights" in the details box of the connection as well as the packets sent / received fields, I can see that packets are successfully being sent out.
* DNS normally works and IP address of server is returned
* No replies are sent back. Very occasionally you might get one packet back out of say 60 requests.
* Netscape successfully resolves DNS too, and sits at, "Connected: Waiting for Reply...."
* Netscape then gives up returning, "Contains no data..."

I have tried the same setup using kppp on PowerPC Yellow Dog Linux 2.2 and with very little trouble (I had to delete the default gateway and add a "ppp0 default gateway" - I've tried this on RedHat) I managed to connect to my ISP in 5 minutes at the most. This was on the same Mac with the same modem.

I am alas, out of ideas at this point, I can only assume that the Virtual PC emulation is in someway faulted, so that the modem is unable to read incoming packets. This would appear strange though, as the Handshake / PAP Authentication etc works fine when I initially connect to my ISP. Surely if the emulation was faulted, the whole connection would fail?

My only other guess is some sort of security setting for incoming packets for RedHat that is not defaulted for Yellow Dog. But then I cannot explain the very occasional packet that get through when using ping.

Does anyone have an ideas what might be causing this? Any comments would be much help.

Thanks,

Phil.
 
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