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Re: absurdly simple LAN problem



On 15 Sep 2005, Alvin Oga wrote:
> 
> 
> On Thu, 15 Sep 2005, Anthony Campbell wrote:
> 
> > > > firewall (shorewall) does not help.
> 
> ping localhost is 100% guaranteed to work ... as long as 127.0.0.1 is in
> /etc/hosts and you do use /etc/hosts in your /etc/resolv.conf
> 
> 	- ping of it's own ip# will always work evenwith the ethernet
> 	cable disconnected
> 
> what is your contents of /etc/hosts and /etc/resolv.conf
> 

desktop:

/etc/hosts:

127.0.0.1	localhost loopback 
192.168.0.20    arcadia.acampbell.org.uk arcadia arcadia.acupuncturecourse.org.uk accampbell.uklinux.net

192.168.0.22 thinkpad ibm

# The following lines are desirable for IPv6 capable hosts
# (added automatically by netbase upgrade)

::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

/etc/resolv.conf

search
nameserver 80.84.64.20
nameserver 80.84.72.20


laptop:

/etc/resolv.conf

search acampbell.org.uk
nameserver 80.84.64.20
nameserver 80.84.72.20

/etc/hosts

127.0.0.1       localhost.localdomain   localhost
192.168.0.22    ibm.acampbell.org.uk    ibm thinkpad
192.168.0.20   arcadia

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts



>  
> > ac:~:$ route -n
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> > 192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
> > 0.0.0.0         192.168.0.1     0.0.0.0         UG    0      0        0 eth0
> 
> 192.168.0.1  is presumably your router thru which you expect to get out
>  
> > ifconfig -a:
> > 
> > eth0      Link encap:Ethernet  HWaddr 00:0B:2B:02:32:FB  
> >           inet addr:192.168.0.20  Bcast:192.168.0.255  Mask:255.255.255.0
> 
> good ... your ip# is *.20
> 
> > For laptop:
> > 
> > Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> > 192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
> > 0.0.0.0         192.168.0.1     0.0.0.0         UG    0      0        0 eth1
> 
> good ... your gateway is the same *.1
>  
> > ac:/usr/share/doc/shorewall:$ ifconfig -a
> > eth0      Link encap:Ethernet  HWaddr 00:06:1B:DE:4B:CF
> 
> bad .. this does NOT have an ip# assigned to it ...
> ===================================================
> 
> > eth1      Link encap:Ethernet  HWaddr 00:40:96:44:B5:A6
> >          inet addr:192.168.0.22  Bcast:192.168.0.255  Mask:255.255.255.0
> 
> good ... this is *.22
> 
> > wifi0     Link encap:UNSPEC  HWaddr 00-40-96-44-B5-A6-00-00-00-00-00-00-00-00-00-00
> >          BROADCAST MULTICAST  MTU:2312  Metric:1
> 
> bad ... this does NOT have an ip# assigned to it
> /////////////////////////////////////////////////
> 

How can I correct these?

-- 
ac@acampbell.org.uk    ||  http://www.acampbell.org.uk for
using Linux GNU/Debian ||  blog, book reviews, electronic  
Microsoft-free zone    ||  books and skeptical articles



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