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[LDM #QEL-970387]: LDM at NOAA



Russ,

Perhaps the kernel isn't properly configured. Did you follow the 
pre-installation instructions at 
<http://www.unidata.ucar.edu/software/ldm/ldm-current/noaaport/index.html#preinstallation>
 -- particularly regarding the "net.ipv4.conf.default.rp_filter" parameter?

> Hi Steve,
> 
> The output from iptables -L and tcpdump -i eth1 looks the same on both
> the Primary and Backup servers.
> 
> address@hidden ~]# iptables -L
> Chain INPUT (policy ACCEPT)
> target     prot opt source               destination
> 
> Chain FORWARD (policy ACCEPT)
> target     prot opt source               destination
> 
> Chain OUTPUT (policy ACCEPT)
> target     prot opt source               destination
> 
> 
> address@hidden ~]# tcpdump -i eth1
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
> 12:44:18.958884 IP 192.168.0.138.6516 > 255.255.255.255.6516: UDP,
> length 130
> 12:44:19.447882 IP 192.168.0.138.6516 > 255.255.255.255.6516: UDP,
> length 130
> 12:44:19.870690 STP 802.1d, Config, Flags [none], bridge-id
> 8017.00:17:94:cf:1b:80.8119, length 43
> 12:44:19.954887 IP 192.168.0.138.6516 > 255.255.255.255.6516: UDP,
> length 130
> 12:44:20.024258 IP 10.0.9.54.57622 > ntp.mcast.net.nucleus-sand: UDP,
> length 4092
> 12:44:20.024421 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.025302 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.025746 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.026121 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.026448 IP 10.0.9.54.57622 > ntp.mcast.net.nucleus-sand: UDP,
> length 4032
> 12:44:20.026625 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.027069 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.027281 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.027730 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.045369 IP 10.0.9.54.57622 > ntp.mcast.net.nucleus-sand: UDP,
> length 2489
> 12:44:20.045823 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.046200 IP 10.0.9.54 > ntp.mcast.net: udp
> 12:44:20.046469 IP 10.0.9.54.57622 > ntp.mcast.net.nucleus-sand: UDP,
> length 4092
> 12:44:20.046643 IP 10.0.9.54 > ntp.mcast.net: udp
> 
> --
> Russell Lancaster

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: QEL-970387
Department: Support LDM
Priority: Normal
Status: Closed


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