Hi All,
I just changed my dedicated server to a new one and there I found some annoying problem - when I run tcpdump my network connection goes DOWN and UP for a few seconds. Perhaps someone knows how to fix it?
I use:
My kernel was rebuilt based on a GENERIC configuration (but the same problem was with the distributed kernel too):
After the first run of tcpdump I can see the next messages in the dmesg:
Let me know if you want to see some other details.
Thank you.
I just changed my dedicated server to a new one and there I found some annoying problem - when I run tcpdump my network connection goes DOWN and UP for a few seconds. Perhaps someone knows how to fix it?
I use:
Code:
# uname -a
FreeBSD xxxxxxx.com 8.2-RELEASE-p2 FreeBSD 8.2-RELEASE-p2 #0: Fri Jun 10 22:24:52 UTC 2011 admin@xxxxxx.com:/usr/obj/usr/src/sys/kernel amd64
My kernel was rebuilt based on a GENERIC configuration (but the same problem was with the distributed kernel too):
Code:
# cat kernel
include GENERIC
ident kernel
# ================ Enable pf & altq ==============
# PF
device pf
device pflog
device pfsync
# ALTQ
options ALTQ
options ALTQ_CBQ
options ALTQ_RED
options ALTQ_RIO
options ALTQ_HFSC
options ALTQ_CDNR
options ALTQ_PRIQ
# ================== Enable NETGRAPH =======================
options NETGRAPH
options NETGRAPH_ASYNC
options NETGRAPH_BPF
options NETGRAPH_BRIDGE
options NETGRAPH_CISCO
options NETGRAPH_ECHO
options NETGRAPH_ETHER
options NETGRAPH_FRAME_RELAY
options NETGRAPH_GIF
options NETGRAPH_GIF_DEMUX
options NETGRAPH_HOLE
options NETGRAPH_IFACE
options NETGRAPH_IP_INPUT
options NETGRAPH_KSOCKET
options NETGRAPH_L2TP
options NETGRAPH_LMI
#=== options NETGRAPH_MPPC_COMPRESSION
options NETGRAPH_MPPC_ENCRYPTION
options NETGRAPH_ONE2MANY
options NETGRAPH_PPP
options NETGRAPH_PPTPGRE
options NETGRAPH_RFC1490
options NETGRAPH_SOCKET
options NETGRAPH_TCPMSS
options NETGRAPH_TEE
options NETGRAPH_TTY
options NETGRAPH_UI
options NETGRAPH_VJC
#===================================================
After the first run of tcpdump I can see the next messages in the dmesg:
Code:
# dmesg
fxp0
:< 5p>rf
x<6p>0o
m<5i>s:
<l6i>nc
u<o5u>sk
<6s>t
m<o5d>ea
t<6e>
e<5n>ac
h<6a>nb
l<e5d>
g
ed to DOWN
fxp0: link state changed to UP
fxp0: promiscuous mode disabled
fxp0: link state changed to DOWN
fxp0: link state changed to UP
Let me know if you want to see some other details.
Thank you.