Re: [SLE] DHCP vs Static IP - SUSE 10.0 REVISITED

From: Bruce Marshall (bmarsh_at_bmarsh.com)
Date: 11/04/05

  • Next message: Bruce Marshall: "Re: [SLE] DHCP vs Static IP - SUSE 10.0 REVISITED" 
    To: SLE <suse-linux-e@suse.com>
Date: Fri, 4 Nov 2005 17:55:54 -0500

    On Friday 04 November 2005 05:35 pm, Donald D Henson wrote:
    > I'm the guy who got frustrated trying to set up a laptop on my LAN after
    > installing SUSE 10.0 and decided to go back to SuSE 9.3. It turned out
    > that I couldn't get 9.3 to reinstall properly either. After several days
    > of trying this and that, I finally determined that I had an intermittent
    > problem with my laptop's optical drive. Short version: I bought a new
    > laptop and installed SUSE 10.0 on it without any apparent problems.
    > However...
    >
    > I am still misundertanding something about configuring the NICs.
    > Everyone was a big help the last time we hashed this out. If you all
    > would continue to help me figure this out, I'd really appreciate it.
    > Here's my setup. It's changed a bit as the result of our previous session.
    >
    > My local network is Ethernet and is implemented with a Linksys router
    > switch. The router switch connects to the cable via a cable modem. I've
    > loaded SUSE 10.0 on the brand new laptop. The laptop connects to my lan
    > via an internal 10/100 Ethernet card. At this point, everything is hard
    > wired. The host names are:
    >
    > linux.site (file server and primary workstation) - SuSE 9.3
    > camino.site (secondary workstation) - SuSE 9.3
    > hplaptop.site (mobile workstation) - SUSE 10.0
    >
    > There are three linux machines, but only one running 10.0, on my lan.
    > The two 9.3 machine's NICs are configured to use DHCP. They can access
    > the Internet and can ping in either direction to/from each other. When
    > hplaptop is configured to use DHCP, hplaptop can access the Internet and
    > can ping either of the other machines but the other two machines cannot
    > ping hplaptop. If I change hplaptop to use fixed IP addresses, all three
    > machines can ping everything on the local network but hplaptop cannot
    > access the Internet.
    >
    > Here's a ping from linux.site to hplaptop.site, everything using DHCP.
    >
    > =====
    >
    > dhenson@linux:~> ping hplaptop.site
    > PING hplaptop.site (192.168.1.63) 56(84) bytes of data.
    >
    > >From 192.168.1.2: icmp_seq=2 Destination Host Unreachable
    > >From 192.168.1.2 icmp_seq=2 Destination Host Unreachable
    > >From 192.168.1.2 icmp_seq=3 Destination Host Unreachable
    > >From 192.168.1.2 icmp_seq=4 Destination Host Unreachable
    >

    It would help if you gave the IP addresses each machine has at the time of
    everything working and when it doesn't work.

    Also the output of route -n on the laptop when it does and doesn't work.

    Also check whether the firewall is running on any or all of the machines. If
    just changing to a static IP makes it work, then a firewall is probably not
    the problem.

    > --- hplaptop.site ping statistics ---
    > 6 packets transmitted, 0 received, +4 errors, 100% packet loss, time 4999ms
    > , pipe 3
    > dhenson@linux:~>
    >
    > =====
    >
    > I'm not sure where ping is getting the hplaptop IP address but it is the
    > one listed in the /etc/hosts file. Here's a listing of that:
    >
    > =====
    >
    > #
    > # hosts This file describes a number of hostname-to-address
    > # mappings for the TCP/IP subsystem. It is mostly
    > # used at boot time, when no name servers are running.
    > # On small systems, this file can be used instead of a
    > # "named" name server.
    > # Syntax:
    > #
    > # IP-Address Full-Qualified-Hostname Short-Hostname
    > #
    >
    > 127.0.0.1 localhost
    >
    > # special IPv6 addresses
    >
    > ::1 localhost ipv6-localhost ipv6-loopback
    >
    > fe00::0 ipv6-localnet
    >
    > ff00::0 ipv6-mcastprefix
    > ff02::1 ipv6-allnodes
    > ff02::2 ipv6-allrouters
    > ff02::3 ipv6-allhosts
    > 192.168.1.60 linux.site linux
    > 192.168.1.61 toshiba.site toshiba
    > 192.168.1.62 camino.site camino
    > 192.168.1.63 hplaptop.site hplaptop
    >
    > =====
    >
    > My router-switch's IP address is: 192.168.1.1
    > My router-switch's subnet mask is: 255.255.255.0
    > As far as I can tell, the hosts all have the same subnet mask.
    > The router-switch's DHCP is set to start issuing at 192.168.1.2 and to
    > issue up to 48 addresses.
    >
    > I'm so confused at this point that I'm not sure if I'm giving you the
    > info you need. If you need anything, just ask.
    >
    > --
    > Donald D. Henson, Managing Director
    > West El Paso Information Network
    > The "Non-Initiation of Force Principle" Rules 

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  • Next message: Bruce Marshall: "Re: [SLE] DHCP vs Static IP - SUSE 10.0 REVISITED"

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