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Subject: Re: ifconfig "double" question..
From: Mike Gende <mgende,AT,gendesign,DOT,com>
Date: Thu, 23 May 2002 17:56:59 +0200
In-reply-to: <1011212023.3c45def722346@www.dahlen.ws>

Roberto Nibali wrote:

> Hi,
>
> > cipcb6    Link encap:IPIP Tunnel  HWaddr
> >           inet addr:192.168.65.1  P-t-P:192.168.60.1  Mask:255.255.255.255
> >           UP POINTOPOINT NOTRAILERS RUNNING NOARP  MTU:1442  Metric:1
> >           RX packets:71041 errors:177 dropped:0 overruns:0 frame:177
> >           TX packets:58704 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:100
> >           RX bytes:6554944 (6.2 Mb)  TX bytes:16514856 (15.7 Mb)
> >
> > cipcb6    Link encap:IPIP Tunnel  HWaddr
> >           inet addr:192.168.65.1  P-t-P:192.168.60.1  Mask:255.255.255.255
> >           UP POINTOPOINT NOTRAILERS RUNNING NOARP  MTU:1442  Metric:1
> >
> > Note there are two entries. This wasn't in order, there are several links 
>and
>
> Yes, someone f*cked something up. This occurs starting with a
> certain amount of physical (read: announced) devices in the
> kernel. I don't remember the number but I think it was something
> crazy like 10. How many interfaces do you have?

At the moment we only have 9.  A partial output of the ip link show command:

1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
4: cipcb0: <POINTOPOINT,NOARP,NOTRAILERS,UP> mtu 1442 qdisc pfifo_fast qlen 
100
21: cipcb6: <POINTOPOINT,NOARP,NOTRAILERS,UP> mtu 1442 qdisc pfifo_fast qlen 
100
23: cipcb25: <POINTOPOINT,NOARP,NOTRAILERS,UP> mtu 1442 qdisc pfifo_fast qlen 
100
24: cipcb2: <POINTOPOINT,NOARP,NOTRAILERS,UP> mtu 1442 qdisc pfifo_fast qlen 
100
25: cipcb15: <POINTOPOINT,NOARP,NOTRAILERS,UP> mtu 1442 qdisc pfifo_fast qlen 
100
27: cipcb18: <POINTOPOINT,NOARP,NOTRAILERS,UP> mtu 1442 qdisc pfifo_fast qlen 
100

The cipe links are given the same number as the location they connect to 
(stores),
these happen
to be using cipe at the moment. When they all do, the numbering will be more
sequential.

Speaking of sequential, I note the numbers via ip link show go from 4 to 21, 
etc.
I've not used it
before your post, is that what one would expect?

> > Anyone ever see this? Again, it works, but I don't recall it on the old 
>box.
>
> Been there, seen that and vomited.

That always hurts ;^)

> The problem is not present if you use the appropriate tools to setup 
>networking
> under Linux,
> namely iproute2.
>
> ip link show
> ip addr show

I see that is true.  So, this problem is with ifconfig?

> Take care,
> Roberto Nibali, ratz

Thanks for looking at it.  I note that now an entry is auto added as a route 
to
not only the host
at the other end (which I'm used to) to a route also for the hosts' LAN as 
well
(which is new
to me).  Perhaps this has something to do with my double ifconfig also.

Unless, that is, someone else tells me differently.

Regards,

Mike





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