two dc cards on 5.4

Sean Murphy smurphy at
Wed Aug 10 23:49:45 GMT 2005

dave wrote:
> Hello,
>     I'm trying to get a pair of netgear cards to work on a 5.4-RELEASE-p6
> box. My rc.conf looks as follows:
> ifconfig_dc0="DHCP"
> ifconfig_dc1="inet netmask"
> When i only have one dc card in the box dc0 everything works, the box gets a
> dhcp ip. Put the second one in regardless whether or not the ifconfig dc1
> line is uncommented and two things happen, first i get continuous watchdog
> timeouts from dc0, second dc0 does not get an IP. As i said the second card
> doesn't have to be configured, just in the box and it happens, i've checked
> i/o and irq's neither conflict between the two cards. One thing, with a
> single dc card the media is set to ethernet autoselect <100base-TX
> full-duplex and it's listed as active. Put the second card in and dc0 shows
> media ethernet autoselect but for media type i have none and status is
> listed as no carrier, i believe this is the reason for the lack of a dhcp
> ip, my question is i don't understand why. I've tried:
> ifconfig_dc0_mediaopt="100base-TX, full-duplex"
> but the system didn't like that. I'd like to tell fbsd specifically what
> mode these cards are to be probed to in, but nothing seems to work, and this
> only occurs when the second card is in the box. I've tried three separate
> cards, all give the same behavior.
>     Some urgency! Any help greatly appreciated.
> Dave.
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try a static address and fixed 100/full
put this in your rc.conf and reboot

*note* this is one line replace with an ip that works for your network

ifconfig_dc0="inet x.x.x.x  netmask media 100baseTX 
mediaopt full-duplex"

*note* this is one line replace with an ip that works for your network

ifconfig_dc1="inet x.x.x.x  netmask media 100baseTX 
mediaopt full-duplex"

Sean Murphy
Senior Network Technician
California Institute of the Arts
smurphy at

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