On Fri, Feb 14, 2003 at 04:19:36PM -0500, Emma Jane Hogbin wrote:
| Hey all:
|
| I'm curious to know what's actually happening when I pull up my wireless
| ethernet connection. Below is what I do and then what I see. I don't
| understand what the DHCPOFFERS received means. This seems to be the
| longest part of the connection. Is there a way to optomize this so that it
| takes less time?
Yeah, fix the network :-).
| DHCPREQUEST on eth0 to 255.255.255.255 port 67
| DHCPREQUEST on eth0 to 255.255.255.255 port 67
This is basically "give me address X.X.X.X, please". It was sent
twice because no server offered the address the first time.
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
| DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
This is "hello, I'm alive, what address can I have?". Due to the lack
of offers, the broadcast is repeated. The interval is an attempt to
be nice to the network, in case it is temporarily congested or
something.
| No DHCPOFFERS received.
This is bad. No offers means one (or more) of the following :
o no network connection between you and other nodes on the subnet
o no DHCP server on the subnet
o the DHCP server has no available leases to offer to you
o the DHCP server doesn't like you
| Trying recorded lease 192.168.1.100
| PING 192.168.1.1 (192.168.1.1): 56 data bytes
Failing to get an offer, dhcp-client tries to see if the (expired!)
lease it had before still works.
| --- 192.168.1.1 ping statistics ---
| 1 packets transmitted, 1 packets received, 0% packet loss
That's more-or-less good, at least the network infrastructure (apart
from DHCP) works. I wonder why it tried pinging that address, since
it's a "private" address and often times doesn't exist on a given
network.
I'd check the DHCP server and see what is wrong with it. In a home
environment you shouldn't be running out of leases (though one of the
labs at school has half of the jacks on a subnet with no available
leases).
-D
--
No harm befalls the righteous,
but the wicked have their fill of trouble.
Proverbs 12:21
http://dman.ddts.net/~dman/
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