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#1 2009-03-14 07:37:11

Olnex
Member
Registered: 2008-04-10
Posts: 89

Network does not work after fresh install, help please!

After I install Arch, I want to update the system, but i cannot connect to network, in my rc.conf, eth0="dhcp", it does not work.
I live in a student apartment where I have to open a page to login, then I can use network, otherwise whatever website I open, it directs me to a page:

http://172.30.254.101:81/*****/login/portal

so I think it is something to do with this.

if eth0="dhcp" and I tried to run dhcpcd eth0, I got:
eth0: dhcpcd 4.0.10 starting
eth0: broadcasting for a lease
eth0: offered 192.168.1.5 from 192.168.1.1
eth0: ignoring offer of 10.0.0.5 from 10.0.0.1
eth0: NAK: (null)
it repeats several times and finally "timeout"

anyone have any ideas how to make it working ??? This annoys me very much, as no network means I cannot update or install anything so I can't have a working desktop.

Thanks a lot!!!

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#2 2009-03-14 07:40:23

Olnex
Member
Registered: 2008-04-10
Posts: 89

Re: Network does not work after fresh install, help please!

BTW, the previous version does work after fresh install, I am using 2009.2 now.

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#3 2009-03-14 13:39:16

PinkFloydYoshi
Member
From: United Kingdom
Registered: 2008-11-20
Posts: 29

Re: Network does not work after fresh install, help please!

I wonder how your IT department has it's vlans set up. Seems strange to have a portal on a completely different subnet to the end points (172.30 is an internal-only address range so if you're getting that page, then you're getting an IP, but possibly not the one you want). That, and it's getting a very early on address. There isn't many other students in your dorm is there? That, or you have to use your own router to connect to your unversity network (This would stop Windows file shares from being accessed from other rooms in the network as a router stops SMB from working externally.)

Often when something ignores a DHCP request, it's down to an accidental duplicate IP thats not in DHCP (Someone statically assigned it so it's not in DHCP's database as being owned by an end point).

Do you connect straight to the university network in your dorm or do you have to connect via your own router, and thats whats dishing out your IP addresses?

Last edited by PinkFloydYoshi (2009-03-14 13:47:04)

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#4 2009-03-14 23:43:13

Olnex
Member
Registered: 2008-04-10
Posts: 89

Re: Network does not work after fresh install, help please!

Sorry for my misleading, the page is only displayed when I can connect to network before, now I re-installed 2009.2 with only command line, "dhcpcd eth0" does not work, and when I access any website using links, it tells me the problem with network.

EDIT: I plug a cable directly into a socket on the wall.

Last edited by Olnex (2009-03-14 23:44:06)

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#5 2009-03-15 01:57:53

SiC
Member
From: Liverpool, England
Registered: 2008-01-10
Posts: 430

Re: Network does not work after fresh install, help please!

If the previous version of the installer was working, then just install using that version.  Once you have done that, run pacman to update, and you should be laughing.

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#6 2009-03-15 16:54:35

Olnex
Member
Registered: 2008-04-10
Posts: 89

Re: Network does not work after fresh install, help please!

The problem is, I want to have ext4 partitions.

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#7 2009-03-15 23:16:42

Olnex
Member
Registered: 2008-04-10
Posts: 89

Re: Network does not work after fresh install, help please!

Now I know how to make it work:
dhcpcd -A eth0
just add -A
but now the question is, how do I configure network manager(in gnome) so it use the -A option)?
otherwise I have to use plain "network" in rc.conf and manually do dhcpcd -A eth0 and it costs a lot more time when booting

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