VERY Strange IP info???

Hi guys,

I have a machine with 2 systems redhat7.3 and winXp installed( when boot, can switch).
I get IP from ISP via DSL in both system.

when use linux and use
>ifconfig
to see IP info, it is OK.

-----
eth0 Link encap:Ethernet HWaddr 00:A0:C9:xx:xx:xx
UP BROADCAST MULTICAST MTU:1500 Metric:1
...

eth1 Link encap:Ethernet HWaddr 00:08:02:xx:xx:xx
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
...

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
...

ppp0 Link encap:Point-to-Point Protocol
inet addr:66.xxx.xxx.xxx P-t-P:66.xxx.xxx.xxx Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
...


when use winXP and use

>ipconfig /all,

I will get the following info.

My questions are
(1)I use IP 66.xxx.xxx.xxx to access the Internet,
why and how did I get the 169.254.182.63
and 169.254.132.89?

(2)The Physical Address. . . . . . . . . : 00-55-98-00-00-00 related to my IP 66.xxx.xxx.xxx
is not 00-08-02-xx-xx-xx, nor 00-A0-C9-xx-xx-xx. WHY?

and How did I get 00-55-98-00-00-00?

(note: 00-08-02-xx-xx-xx and 00-A0-C9-xx-xx-xx are two net cards' Physical Addresses )

----------------------------------------------------------
Windows IP Configuration

Host Name . . . . . . . . . . . . : xxxxxx
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VM Network Connection
Physical Address. . . . . . . . . : 00-08-02-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.182.63
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel 8255x-based PCI Ethernet Adapter (10/100)
Physical Address. . . . . . . . . : 00-A0-C9-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.132.89
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

PPP adapter sbc:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-55-98-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 66.xxx.xxx.xxx
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 66.xxx.xxx.xxx
DNS Servers . . . . . . . . . . . : xxx.xxx.xxx.xxx
yyy.yyy.yyy.yyy
NetBIOS over Tcpip. . . . . . . . : Disabled
--------------------------------------------------------------------------------------------------------

Any idea or hint or help will be appreciated greatly!!

Outty

outty wrote:
> Hi guys,
>
> I have a machine with 2 systems redhat7.3 and winXp installed( when boot, can switch).
> I get IP from ISP via DSL in both system.
>
> when use linux and use
>
>>ifconfig
>
> to see IP info, it is OK.
>
> -----
> eth0 Link encap:Ethernet HWaddr 00:A0:C9:xx:xx:xx
> UP BROADCAST MULTICAST MTU:1500 Metric:1
> ...
>
> eth1 Link encap:Ethernet HWaddr 00:08:02:xx:xx:xx
> inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> ...
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> ...
>
> ppp0 Link encap:Point-to-Point Protocol
> inet addr:66.xxx.xxx.xxx P-t-P:66.xxx.xxx.xxx Mask:255.255.255.255
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
> ...
>
>
> when use winXP and use
>
>
>>ipconfig /all,
>
>
> I will get the following info.
>
> My questions are
> (1)I use IP 66.xxx.xxx.xxx to access the Internet,
> why and how did I get the 169.254.182.63
> and 169.254.132.89?

IPv4 addresses in the 169.254/16 address space are part of the
(reserved) "link local" IPv4 address space. OS environments allocate
IPv4 addresses from the link local address space for a variety of
reasons. For example, if DHCP fails to allocate an IPv4 address for a
given network interface, the OS can try to allocate an unused link local
IPv4 address (i.e., the proverbial "plan B"). If the link local address
allocation is successful, the OS assigns the address to the network
interface. (IOW, the OS assumes that it's better for the interface to
have a link local IPv4 address than no IPv4 address at all.)


> (2)The Physical Address. . . . . . . . . : 00-55-98-00-00-00 related to my IP 66.xxx.xxx.xxx
> is not 00-08-02-xx-xx-xx, nor 00-A0-C9-xx-xx-xx. WHY?
>
> and How did I get 00-55-98-00-00-00?
>
> (note: 00-08-02-xx-xx-xx and 00-A0-C9-xx-xx-xx are two net cards' Physical Addresses )

The physical address '0055:9800:0000' is probably the data link address
of your PPP connection (see the 'ipconfig' output below).

>
> ----------------------------------------------------------
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : xxxxxx
> Primary Dns Suffix . . . . . . . :
> Node Type . . . . . . . . . . . . : Unknown
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
>
> Ethernet adapter Local Area Connection 2:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel(R) PRO/100 VM Network Connection
> Physical Address. . . . . . . . . : 00-08-02-xx-xx-xx
> Dhcp Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> Autoconfiguration IP Address. . . : 169.254.182.63
> Subnet Mask . . . . . . . . . . . : 255.255.0.0
> Default Gateway . . . . . . . . . :
>
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel 8255x-based PCI Ethernet Adapter (10/100)
> Physical Address. . . . . . . . . : 00-A0-C9-xx-xx-xx
> Dhcp Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> Autoconfiguration IP Address. . . : 169.254.132.89
> Subnet Mask . . . . . . . . . . . : 255.255.0.0
> Default Gateway . . . . . . . . . :
>
> PPP adapter sbc:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
> Physical Address. . . . . . . . . : 00-55-98-00-00-00
> Dhcp Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 66.xxx.xxx.xxx
> Subnet Mask . . . . . . . . . . . : 255.255.255.255
> Default Gateway . . . . . . . . . : 66.xxx.xxx.xxx
> DNS Servers . . . . . . . . . . . : xxx.xxx.xxx.xxx
> yyy.yyy.yyy.yyy
> NetBIOS over Tcpip. . . . . . . . : Disabled
> --------------------------------------------------------------------------------------------------------
>
> Any idea or hint or help will be appreciated greatly!!


--
Jim

To reply by email, remove "link" and change "now.here" to "yahoo"
jfischer_link5809{at}now.here.com

"outty" <(E-Mail Removed)> wrote in message
news:qE_pb.574$(E-Mail Removed) .com

> My questions are
> (1)I use IP 66.xxx.xxx.xxx to access the Internet,
> why and how did I get the 169.254.182.63
> and 169.254.132.89?
> (2)The Physical Address. . . . . . . . . : 00-55-98-00-00-00 related
> to my IP 66.xxx.xxx.xxx
> is not 00-08-02-xx-xx-xx, nor 00-A0-C9-xx-xx-xx. WHY?
> and How did I get 00-55-98-00-00-00?
> (note: 00-08-02-xx-xx-xx and 00-A0-C9-xx-xx-xx are two net cards'
> Physical Addresses )

Your questions were very adequately answered previously in both
comp.os.linux.networking and comp.os.linux.security one week ago.

Why are you asking the same questions again? If you don't understand the
answers you were given then you should respond to those who answered you,
and let them know that you need a simpler explanation of what is happening.

Asking the exact same questions one week later indicate that you didn't read
the helpful replies, and will cause others to just ignore you.

--



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