Cant ping with Source Internal

[wansushi]

im trying to ping outside with internal interface:   ping -I 192.168.32.1 8.8.4.4

why nat is not issued here?

fw monitor -e 'accept host(192.168.32.1);' 
fw: getting filter (from command line)
fw: compiling
monitorfilter:
Compiled OK.
fw: loading
fw: monitoring (control-C to stop)
[vs_0][fw_0] ppp0:o[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53536
ICMP: type=8 code=0 echo request id=60949 seq=0
[vs_0][fw_0] ppp0:O[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53536
ICMP: type=8 code=0 echo request id=60949 seq=0
[vs_0][fw_0] ppp0:o[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53537
ICMP: type=8 code=0 echo request id=60949 seq=1
[vs_0][fw_0] ppp0:O[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53537
ICMP: type=8 code=0 echo request id=60949 seq=1
[vs_0][fw_0] ppp0:o[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53538
ICMP: type=8 code=0 echo request id=60949 seq=2
[vs_0][fw_0] ppp0:O[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53538
ICMP: type=8 code=0 echo request id=60949 seq=2
[vs_0][fw_0] ppp0:o[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53539
ICMP: type=8 code=0 echo request id=60949 seq=3
[vs_0][fw_0] ppp0:O[84]: 192.168.32.1 -> 8.8.4.4 (ICMP) len=84 id=53539
ICMP: type=8 code=0 echo request id=60949 seq=3

[PhoneBoy]

In general, NAT happens on the ingress before packets are routed.
For traffic originating from the gateway, this doesn’t generally apply.
What is the precise use case for performing a ping in this manner?

[wansushi]

its for debugging purpose , no personal on lan right now and i want to simulate traffic from the internal network