Summary of The Problem(s):
1) When I attempt to ping something (by ip address) nothing happens for
a good 10 seconds or so, then I get about 10-15 response all at once, and
then normal operation continues. This problem is not present with http
connects etc.
2) DNS lookups do not seem to be preformed succesfuly, even though
nslookup works fine.
Hello,
I recently downloading, and after a great struggle, managed to install
Redhat 7.0 succesfully. Now, however, after finaly getting all my hardware
working I'm having problems with my network that can only be described as
"odd". First, a quick description of my setup: One Linksys PCI network
card (the famous 10MB pci one), using the pci-ne2k module, and assigned the
address 192.168.1.2. One ppp connection setup partly with RedHat's nice yet
stunningly non-functional configuration tools. The DNS server address for
this ppp connection are "hardcoded" into my /etc/resolv.conf just to
eliminate that source of error.
Anyway, heres the problem: (I'll focus on the the problems I'm having
with the internet, though, as I'll mention later I'm having the same
problems with my internal network.) I'll dial up, and pppd will connect
succesfuly, and setup up a default route, etc. I then try to ping the ip
address of some random server (usualy my isp's, so there should be almost no
lag). For a signifigant amount of time (10 seconds?), ping will just sit
there, presumably sending packets out into space, then all of a sudden a
bunch of responses flood in real fast (like 10-15 at once), and it will
continue operating as it does under normal conditions. Http/ftp connects
etc are served instantly; it seems that only pings have this odd delay (over
both internal net and internet (firewall problem?)). This problem is
complicated/also evidenced in the inability of any program to resolve
hostnames. nslookup works like a charm with no lag, but other than
nslookup, (i.e. netscape, lynx, ping, telnet, ftp, etc) nothing is able o
succesufly convert hostname to ip. So far I have tried an inumerable amount
of possible solutions, including, disabling ipchains etc.
My working theory is that the cause of all this is that something is
proccesing incoming ICMP packets which has to be kickstarted, or something
(i.e. ipchains despite my attempt at disabling it), and that something,
prehaps this same mysterious entity is trying to converite hostname->ip
before resolve passes it off to dns, thus causing most programs to time out.
(I used linuxconf to set the "lookup order" or whatever thats called to
"hosts,dns", still no luck, but I have very little faith in automated
configuartion tools.)
Sorry to ramble so much, and thank you for any help you can give me.
-John Walker ([EMAIL PROTECTED])
P.S. Please respond directly to my address as well as to the list if at all
possible.
P.P.S. I apologize in advance if outlook (express) manages to mangle this
message. (I am forced to send this from Windows box for obvious reasons.)
, but for some reason my dns config also seems to be non-functional:
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