Red Hat Bugzilla – Full Text Bug Listing
|Summary:||DHCP creates malformed packets which DOS netgear ADSL router|
|Product:||[Fedora] Fedora||Reporter:||Tim Hawkins <timh>|
|Component:||dhcp||Assignee:||Daniel Walsh <dwalsh>|
|Status:||CLOSED ERRATA||QA Contact:|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2004-04-05 22:55:10 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description Tim Hawkins 2004-02-29 07:04:17 EST
Description of problem: I have a DSL line terminated with a Netgear DG814 ADSL router/modem, which is then connected to my internal network . Im testing FC2 test1 on a Sharp PC-FS2518 laptop, that has a Socket Compact Flash Network Card in it. Everytime I boot the laptop, the Netgear router siezes up and stops routing, requiring a hard reset, once reset it is fine, and does not cause any problems, something during the FC2 boot is sending a network packet that kills the Router, FC1 on the same hardware does not do the same thing. I have tried disabling tcp_ecn on boot with no effect. I have switched network cards to a wireless card to eliminate driver issue: How reproducible: Select DHCP as means to set network parameters. Inspect system logs afterwards. Actual results: I have narrowed it down to DHCP negotiation which is strange as the netgear router is not configured to operate as a DHCP server. Its not the network card driver as I have now switched to a wireless lan card and the problem is the same . I get the following in the system log just as the router dies. Feb 28 17:27:45 timslaptop kernel: Uniform CD-ROM driver Revision: 3.20 Feb 28 17:27:45 timslaptop udev: creating device node '/udev/hdc' Feb 28 17:28:40 timslaptop kernel: ip_tables: (C) 2000-2002 Netfilter core team Feb 28 17:28:40 timslaptop kernel: eth1: error -110 reading info frame. Frame dropped. Feb 28 17:28:40 timslaptop kernel: eth1: Error -110 setting multicast list. Feb 28 17:28:40 timslaptop last message repeated 2 times Feb 28 17:28:40 timslaptop dhclient: sit0: unknown hardware address type 776 Feb 28 17:28:40 timslaptop kernel: eth1: New link status: Connected (0001) Feb 28 17:28:41 timslaptop dhclient: sit0: unknown hardware address type 776 Feb 28 17:28:43 timslaptop dhclient: DHCPREQUEST on eth1 to 255.255.255.255 port 67 Feb 28 17:28:43 timslaptop dhclient: DHCPACK from 192.168.0.242 Feb 28 17:28:43 timslaptop dhclient: bound to 192.168.0.163 -- renewal in 100950 seconds. Feb 28 17:33:51 timslaptop kernel: spurious 8259A interrupt: IRQ7. Feb 28 17:34:33 timslaptop nmbd: [2004/02/28 17:34:33, 0] nmbd/nmbd_become_lmb.c 192.168.0.242 is an NT box operating as a DHCP server, the reason for that is complicated, to do with limitations in the netgear DHCP server, I need to be able to set the DNS servers for the DHCP reponse, so that I can have local copies of my domains on an internal DNS with internal addresses, rather than the external addreses on the external ISP DNS. netgear assumes they are the uptream ISP servers it has DHCP'd from the adsl provider. the DHCP server is disable on the netgear router. If I set the ip's, DNS's staticaly, then the system is stable.
Comment 1 Daniel Walsh 2004-04-05 22:55:10 EDT
This is more likely a bug with netgear.
Comment 2 John Flanagan 2004-12-21 14:42:05 EST
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2004-566.html