Re: ping me comes back 127.0.0.1
From: *Vanguard* (no-email_at_bogus-domain.nix)
Date: 02/05/04
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Date: Thu, 5 Feb 2004 10:09:53 -0600
"Peter Kaufman" said in news:966420tdnrgq470qa907t76ubqlttr2t91@4ax.com:
> XP SP1 Pro. Not on domain, and can join a workgroup but cannot browse
> it afterwards - even a newly created one.
>
> Pinging my machine by name comes back 127.0.0.1 which doesn't seem
> right. I can ping other machines on the LAN by IP but of course not by
> name. Tried both DHCP and fixed IP.
>
> Where do I look for the problem?
>
> Thanks,
>
> Peter
127.0.0.1 *IS* your own computer. That's its internal IP address separate
of anything assigned by a DHCP server or statically assigned for external
interface. It is also known by its name of "localhost" (i.e., localhost =
127.0.01 = your computer).
What host is providing the DCHP service to assign you an IP address? A
Windows host? A DHCP server in a router? A DCHP server in the cable modem?
Is your LAN connectoid's TCP configuration setup to use DHCP, or do you
specify a static IP addresses?
When you say you cannot ping by name, do you mean a hostname, like "elmer",
or an IP name, like www.intel.com? You might not be able to ping hostnames
if you have ICMP disabled in a router or firewall between you and the other
intranet hosts. You won't be able to ping by hostname to Internet hosts;
you'll only be able to ping those using their IP address or IP name.
Computers use IP addresses. They don't understand IP names. IP names are
only for the convenience of humans who are unable to remember IP addresses.
So you need something to cross reference the IP name that you use to the IP
address that the computer will use. That's the DNS server. Where is the
DNS server? Are you running one? Are you using your ISP's DNS server? If
you have a firewall (software or in a router), is it configured correctly,
like permitting UDP packets to pass through port 53?
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