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FC5 Network nightmare



On my box acting as a router I have two NIC

eth0 is the onboard NIC (marvell 1Gbit)
eth1 is the additional 10Mbit NIC (realtek 8029) for modem connection.

Sometimes upon booting I cannot connect to the modem and also pinging
it is impossible, I get an ureachabale host.
I reboot the machine and it works...
I made a short investigation and
 when not working

/sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 52:54:05:E5:82:46
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::5054:5ff:fee5:8246/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:242 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:18577 (18.1 KiB)
          Interrupt:19 Base address:0xec00

eth1      Link encap:Ethernet  HWaddr 00:11:D8:BF:9F:05
          inet addr:192.168.254.1  Bcast:192.168.254.255  Mask:255.255.255.0
          inet6 addr: fe80::211:d8ff:febf:9f05/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:61 errors:0 dropped:0 overruns:0 frame:0
          TX packets:129 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5734 (5.5 KiB)  TX bytes:12325 (12.0 KiB)
          Interrupt:20

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:3854 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3854 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5355251 (5.1 MiB)  TX bytes:5355251 (5.1 MiB)

when working:

/sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:D8:BF:9F:05
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::211:d8ff:febf:9f05/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:64 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1192 (1.1 KiB)  TX bytes:7983 (7.7 KiB)
          Interrupt:19

eth1      Link encap:Ethernet  HWaddr 52:54:05:E5:82:46
          inet addr:192.168.254.1  Bcast:192.168.254.255  Mask:255.255.255.0
          inet6 addr: fe80::5054:5ff:fee5:8246/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:348 errors:0 dropped:0 overruns:0 frame:0
          TX packets:401 errors:0 dropped:0 overruns:0 carrier:0
          collisions:1 txqueuelen:1000
          RX bytes:37595 (36.7 KiB)  TX bytes:39948 (39.0 KiB)
          Interrupt:20 Base address:0xec00

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2575 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2575 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5500220 (5.2 MiB)  TX bytes:5500220 (5.2 MiB)

ppp0      Link encap:Point-to-Point Protocol
          inet addr:87.8.156.42  P-t-P:192.168.100.1  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:338 errors:0 dropped:0 overruns:0 frame:0
          TX packets:332 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:29436 (28.7 KiB)  TX bytes:24734 (24.1 KiB)

I see that HWadrr and inet6 address are reversed..
what does it mean???? help please

--
Antonio Montagnani
Skype : antoniomontag


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