Re: default route not set with 3com dual modem/enet card

[Michael Perry <mperry@tsoft.com>]

Quoting Drew Parsons on Sat, Oct 30, 1999 at 01:42:23PM -0700:
> On Sat, Oct 30, 1999 at 12:30:36PM -0700, Michael Perry wrote:
> > Hi all-
> > 
> > Just a question about something a few of us have noted where I work.  I have
> > a Fujitsu Lifebook running potato which has a 3com 556 card which provides
> > both 100mbit ethernet and modem services.  One thing we have noticed is that
> > when we dial a ISP while on the road the ethernet connection requires us to
> > remove it by issuing the command in /etc/pcmcia.  After this, the ppp
> > connection sets up a default route correctly to a mindspring.
> > 
> > At home, I have both an eth0 and a ppp connection and it works correctly.  
> > 
> > Is there a switch somewhere in the pcmcia stuff which will let the ppp
> > interface establish a default route?
> 
> 
> I think it's in the ppp docs that it says ppp will NOT set the default
> route if one is already set on eth0 (this is how things should be, if you
> think about it).  What I do is explicitly turn eth0 off:
> 	ifconfig eth0 down
> and after that when pppd runs, it sets the default route automatically.
> 
> Drew
> 
Hi Drew-

Many thanks for the response.  I do not understand why a laptop does this
though and my slinkato desktop which has a lan behind it allows me to dial
with ppp without killing the network connection.  Check this out:

eth0      Link encap:Ethernet  HWaddr 00:90:27:1D:3A:C4  
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:270 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          Interrupt:10 Base address:0xd400 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:3924  Metric:1
          RX packets:606 errors:0 dropped:0 overruns:0 frame:0
          TX packets:606 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 

ppp0      Link encap:Point-to-Point Protocol  
          inet addr:198.144.207.221  P-t-P:207.201.34.1
			Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:1227 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1269 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10 

This seems to allow me to have a eth0 up and dialup a ppp connection without
downing the eth0 first.

-- 
Michael Perry		
mperry@tsoft.com
------------------