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Date:      Thu, 23 Jan 1997 13:28:19 +0000
From:      "Richard Gresek" <rg@gds.de>
To:        freebsd-isp@freebsd.org
Subject:   Ping DUP
Message-ID:  <199701231229.NAA20550@gds.de>

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Hallo,

I am using the 3.0-970118-SNAP on a P5 200 MHz and a 3Com 3C900 
Etherlink XL NIC.

I defined several IP-addresses with 

ifconfig vx0 inet 194.231.79.60 netmask 0xffffffc0 alias
route add 194.231.79.60 localhost

Now, when I ping this address from another network every ip-packet 
get duplicated:

PING 194.231.79.60 (194.231.79.60): 56 data bytes
64 bytes from 194.231.79.60: icmp_seq=0 ttl=251 time=59.921 ms
64 bytes from 194.231.79.60: icmp_seq=0 ttl=251 time=69.929 ms (DUP!)
64 bytes from 194.231.79.60: icmp_seq=1 ttl=251 time=60.104 ms 
64 bytes from 194.231.79.60: icmp_seq=1 ttl=251 time=70.113 ms (DUP!) 
64 bytes from 194.231.79.60: icmp_seq=2 ttl=251 time=60.108 ms 
64 bytes from 194.231.79.60: icmp_seq=2 ttl=251 time=70.071 ms (DUP!) 
64 bytes from 194.231.79.60: icmp_seq=3 ttl=251 time=50.142 ms 
64 bytes from 194.231.79.60: icmp_seq=3 ttl=251 time=60.133 ms (DUP!) 
^C ---
194.231.79.60 ping statistics --- 4 packets transmitted, 4 packets
received, +4 duplicates, 0% packet loss round-trip min/avg/max =
50.142/62.565/70.113 ms #

There are no DUPs when pinging from within the same net.

I did not have this problem with FreeBSD 2.1.5 nor with 3.0 and a 
NE2000 clone.

Could it be a bug in the vx0 driver or did I misconfigure something?

Thanks

Richard


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