EM7455 : arping not working in raw-IP mode

[Senthilganapathy Paramasivam]

Hi ,

Does Raw-IP mode not support arping?  Can some one clarify why arping
is not working?
The connection procedure is shown as below.
EM7455 is directly wired to base station simulator ( CMW500 ).

# qmicli -p -d /dev/cdc-wdm1 --wds-start-network="apn=broadband,ip-type=4" --dev
ice-open-net="net-raw-ip|net-no-qos-header" --device-open-sync --client-no-relea
se-cid
[/dev/cdc-wdm1] Network started
        Packet data handle: '63501184'
[/dev/cdc-wdm1] Client ID not released:
        Service: 'wds'
            CID: '35'

# echo Y > /sys/class/net/wwan1/qmi/raw_ip

# udhcpc -i wwan1
udhcpc: started, v1.26.2
udhcpc: sending discover
udhcpc: sending select for 172.22.1.100
udhcpc: lease of 172.22.1.100 obtained, lease time 7200
deleting routers
adding dns 172.22.1.201
Recorded lease to [/var/run/udhcpc-wwan1.lease]

# ifconfig wwan1
wwan1: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 172.22.1.100  netmask 255.255.255.248  destination 172.22.1.100
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
txqueuelen 1000  (UNSPEC)
        RX packets 20  bytes 2116 (2.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 31  bytes 3842 (3.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

# ping -I wwan1 172.22.1.201
PING 172.22.1.201 (172.22.1.201) from 172.22.1.100 wwan1: 56(84) bytes of data.
64 bytes from 172.22.1.201: icmp_seq=1 ttl=64 time=16.8 ms
64 bytes from 172.22.1.201: icmp_seq=2 ttl=64 time=13.7 ms
64 bytes from 172.22.1.201: icmp_seq=3 ttl=64 time=14.7 ms
64 bytes from 172.22.1.201: icmp_seq=4 ttl=64 time=14.9 ms
64 bytes from 172.22.1.201: icmp_seq=5 ttl=64 time=15.9 ms
64 bytes from 172.22.1.201: icmp_seq=6 ttl=64 time=14.9 ms
64 bytes from 172.22.1.201: icmp_seq=7 ttl=64 time=15.9 ms


# arping -I wwan1 -s 172.22.1.100 172.22.1.201
arping: Device wwan1 not available.

Thanks and Regards
Senthil