I followed the guide located at https://docs.opnsense.org/manual/how-tos/proxytransparent.html
However the client receives no data like a missing rule or route.
Firewall: Log Files: Live View
lan Sep 23 12:02:29 192.168.43.150:34462 127.0.0.1:3129 tcp rdr rule
lan Sep 23 12:02:24 192.168.43.150:50316 127.0.0.1:3128 tcp rdr rule
__timestamp__ Sep 23 12:06:33
ack
action [rdr]
anchorname
datalen 0
dir [in]
dst 127.0.0.1
dstport 3128
ecn
id 65130
interface vtnet1
ipflags DF
label rdr rule
length 60
offset 0
proto 6
protoname tcp
reason match
ridentifier 0
rulenr 2
seq 959041592
src 192.168.43.150
srcport 50352
subrulenr
tcpflags S
tcpopts
tos 0x0
ttl 64
urp 29200
version 4
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I have had this working in the past with an older version of OPNsense but I'm unable to get the latest version to work.
Installed the old version 18.1.6 and confirmed working as expected so as far as I can tell there is certainly a problem with 19.7.