eth0 connectivity

themanwhowas · 12-20-2008, 08:21 PM

hi guys

I have used slackware a few times before but have just installed 12.2 on a really old machine. I installed a us.robotics ethernet card and assigned it a static ip, correct default gateway etc.

i can ping localhost and my ip but i cant ping the router or any other machine on the network. i tried using dhcp but during boot no dhcp server is discovered (my router is also a dhcp server).

Is there a way for me to check if my ethernet card was detected properly? im sure it has been otherwise i couldnt ping myself right?

Poetics · 12-20-2008, 08:30 PM

What does `dmesg` say about a NIC or ethernet controller?

Also, what does `ifconfig -a` return?

themanwhowas · 12-21-2008, 05:15 AM

ifconfig -a looks ok. displays the ip address, netmask, mac address etc

dmesg has the following:

eth0: DSPCFG accepted after 0 usec
eth0: link up
eth0: setting full-duplex based on negotiated linkcapability
NET: registered protocol family 10
lo: disabled privacy extensions
eth0: no ipv6 routers present

is this even what i should be looking at? i have no idea.

also whilst playing with ping i noticed that i can ping 'localhost', 127.0.0.1, my ip address (192.168.1.7), my hostname(chicken) and my fqdn(chicken.soup.local) all of which work ok. as soon as i ping anything else by ip address, ie my router, i get 'destination host unreachable'.

Thanks for looking

Woodsman · 12-21-2008, 01:31 PM

Check /etc/resolv.conf. Mine looks like this:

Code:

# /etc/resolv.conf
# used to resolve DNS server look-ups

# first query this computer's hosts file
search localhost

# next search this computer for a caching nameserver (e.g., dnsmasq)
nameserver 127.0.0.1

# next query a local network nameserver
nameserver 192.168.1.1

# next query outside DNS servers (e.g., ISP servers)
search isp.isp.net # change this to the URL of your ISP

themanwhowas · 12-21-2008, 06:33 PM

resolv.conf is ok, using opendns. as i can't ping the router by ip address it can't be a dns problem. i guess it's either an ARP issue or a firewall one. is there a default firewall or some other packet filter in slackware?

bgeddy · 12-21-2008, 06:54 PM

Quote:

is there a default firewall or some other packet filter in slackware?

No there is no such default. What does:

Code:

/sbin/route -n

return ?

tux_dude · 12-21-2008, 06:58 PM

Have you tried updating your routing table?

as root:

Code:

route add default gw <router ip>

themanwhowas · 01-02-2009, 12:08 PM

Sorry, i totally forgot about this thread.

The routes were all ok, the default gw was fine, i just couldnt use tcp/ip. I reinstalled 12.0 and it works fine so im sticking with that for a while. Mind boggling though why it wouldnt work. I was in the #slackware irc channel for about 4 hours with people trying to help me.

Thanks