Q: How get tu0 into promisc mode for tcpdump ?!?

From: Doug McPherson (617) 441-4565 <"Doug>
Date: Wed, 08 Feb 1995 13:50:49 -0500 (EST)

We have an AlphaServer 4/200 (sable) unit running OSF 3.0 with an EISA
ethernet card factory-installed at tu0.

We can't get tcpdump (the one shipped with that system's version of OSF/1)
to work on the ethernet interface, no matter what we do.

We built the kernel with the PACKETFILTER,
We did a MAKEDEV pfilt, etc,
We put the interface into promisc mode (#ifconfig tu0 promisc)

... and still it doesn't work:

# tcpdump
tcpdump: pfopen: tu0: No such device
tcpdump: your system may not be properly configured; see "man packetfilter"
#

        Oh yeah ?:

# ifconfig tu0
tu0: flags=d63<UP,BROADCAST,NOTRAILERS,RUNNING,PROMISC,MULTICAST,SIMPLEX>
     inet 199.93.0.253 netmask ffffff00 broadcast 199.93.0.255 ipmtu 1500
#

# uname -a
OSF1 foo.bar.com V3.0 358.78 alpha


Can anybody help?

Thanks in advance.
/doug

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Received on Wed Feb 08 1995 - 18:25:40 NZDT

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