Capture Port IP/MAC
Last updated
Last updated
By default FMADIO devices capture ports operate without any MAC or IP information. It receives and records any and all ethernet traffic on the wire. Its essentially a black hole high speed data recorder.
However there are some situations where the Capture interfaces need an IP MAC address, this is for ERSPAN IP targets, and also having the capture ports directly join Mulitcast groups. The follow demonstrates how to setup IP MAC Address,
Using FMAIO DPI Engine we can filter out low bandwidth traffic such as ARP/ICMP requests without any effect on the 100Gbps / 149Mpps packet capture performance. As seen below using a few of the PreCapture filter rules and forwarding a few packets to our ARP/ICMP/IGMP software network stack running on the x86 Server. This allows full ARP and ICMP protocol support on the capture interfaces.
NOTE: Enabling this feature reduces the total number of Pre Capture filter rules, It requires
Depending on the capture port port configuration (2 ports or 8 ports), a maximum of 9 pre-capture filter rules may be used.
To Configure IP/MAC information for the capture ports. edit the files below, by adding 2 new sections ["cap0"] and ["cap1"] i the configuration file
Edit the file such that it look like the following, adding in your own MAC and IP addresses. There is no Netmask or Gateway associated with the capture ports.
Save the file and reboot the system.
The capture interfaces MAC/IP/IGMP is only enabled when there is an active capture. Please start a capture then try arping the interface first
If that is successful then check ICMP ping is functioning correctly also
Any problems please check the log file
It may provide more information on why ARP or ICMP is not responding correctly
Rule Number
Description
15
MAC Broadcast ARP Requests
14
Capture Port 0 MAC filter
13
Capture Port 1 MAC Filter