Please post the output of "/ip firewall export" and confirm that you're sending traffic to udp/7.
You cannot be sending traffic to the PC's MAC address as it isn't part of your local network. The MAC address may be embedded in the payload, but it most certainly isn't embedded in the layer 2 header.
# apr/14/2011 15:01:42 by RouterOS 5.1
/ip firewall layer7-protocol
I cut this out because it was huge.
/ip firewall address-list
add address=192.168.1.0/24 disabled=no list=QOSCustomerIPs
add address=10.10.10.10 comment=\
"Example for the DoNotTestConnectionCounts list" disabled=yes list=\
DoNotTestConnectionCounts
/ip firewall connection tracking
set enabled=yes generic-timeout=10m icmp-timeout=10s tcp-close-timeout=10s \
tcp-close-wait-timeout=10s tcp-established-timeout=1d \
tcp-fin-wait-timeout=10s tcp-last-ack-timeout=10s \
tcp-syn-received-timeout=5s tcp-syn-sent-timeout=5s tcp-syncookie=no \
tcp-time-wait-timeout=10s udp-stream-timeout=3m udp-timeout=10s
/ip firewall filter
add action=tarpit chain=input comment="Tarpit ssh brute forcers" disabled=no \
dst-port=22 protocol=tcp src-address-list=ssh_blacklist
add action=add-src-to-address-list address-list=ssh_blacklist \
address-list-timeout=1w3d chain=input connection-state=new disabled=no \
dst-port=22 protocol=tcp src-address-list=ssh_stage3
add action=add-src-to-address-list address-list=ssh_stage3 \
address-list-timeout=1m chain=input connection-state=new disabled=no \
dst-port=22 protocol=tcp src-address-list=ssh_stage2
add action=add-src-to-address-list address-list=ssh_stage2 \
address-list-timeout=1m chain=input connection-state=new disabled=no \
dst-port=22 protocol=tcp src-address-list=ssh_stage1
add action=add-src-to-address-list address-list=ssh_stage1 \
address-list-timeout=1m chain=input connection-state=new disabled=no \
dst-port=22 protocol=tcp
add action=tarpit chain=input comment="Tarpit FTP" disabled=no dst-port=21 \
protocol=tcp
add action=tarpit chain=input comment="Tarpit telnet" disabled=no dst-port=23 \
protocol=tcp
add action=accept chain=input comment="Allow 53 Inbound" disabled=no \
dst-port=53 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow 54 Inbound" disabled=no \
dst-port=54 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow 123 Inbound" disabled=no \
dst-port=123 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow SSH Inbound" disabled=no \
dst-port=22 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow WebBox Inbound" disabled=no \
dst-port=8291 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow Apple Remote Desktop" disabled=\
no dst-port=3283,3284,5900,5901 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow Apple Remote Desktop" disabled=\
no dst-port=3283,3284,5900,5901 in-interface=ether1-gateway protocol=udp
add action=accept chain=input comment="Allow Ports 1280-1282" disabled=no \
dst-port=1280,1281,1282,1283 in-interface=ether1-gateway protocol=tcp
add action=accept chain=input comment="Allow limited pings" disabled=no \
in-interface=ether1-gateway limit=50/5s,2 protocol=icmp
add action=drop chain=input comment="Drop excess pings" disabled=no \
in-interface=ether1-gateway protocol=icmp
add action=accept chain=input comment="Added by webbox Allow Established" \
connection-state=established disabled=no in-interface=ether1-gateway
add action=accept chain=input comment="Added by webbox Allow Related" \
connection-state=related disabled=no in-interface=ether1-gateway
add action=accept chain=input comment="Allow SYN" disabled=no protocol=tcp \
tcp-flags=ack
add action=accept chain=input comment="Allow RST" disabled=no protocol=tcp \
tcp-flags=rst
add action=drop chain=input comment="Added by webbox" disabled=no \
in-interface=ether1-gateway
/ip firewall mangle
add action=accept chain=forward comment=\
"Accept all traffic going to the RouterIPs address list - Leave disabled" \
disabled=yes dst-address-list=RouterIPs
add action=mark-packet chain=forward comment=\
"We should start with marking everything as unknown - p6" disabled=yes \
new-packet-mark=p6 passthrough=yes
add action=mark-connection chain=forward comment=Skype-to-skype disabled=no \
layer7-protocol=skypetoskype new-connection-mark=Skype passthrough=yes
add action=mark-connection chain=forward comment=Skype-to-skype disabled=no \
layer7-protocol=skypeout new-connection-mark=Skype passthrough=yes
add action=mark-packet chain=forward comment=\
"Skype-to-skype p1 with NO PASSTHROUGH" connection-mark=Skype disabled=no \
new-packet-mark=p1 passthrough=no
add action=mark-packet chain=forward comment="Ack to p1" disabled=no \
new-packet-mark=p1 packet-size=0-40 passthrough=no protocol=tcp \
tcp-flags=ack
add action=mark-packet chain=forward comment="Fin to p1" disabled=no \
new-packet-mark=p1 packet-size=0-256 passthrough=no protocol=tcp \
tcp-flags=fin
add action=mark-packet chain=forward comment="Syn to p1" disabled=no \
new-packet-mark=p1 packet-size=0-256 passthrough=no protocol=tcp \
tcp-flags=syn
add action=mark-connection chain=forward comment="Mark p2p connections first" \
disabled=no new-connection-mark=p2p_conn p2p=all-p2p passthrough=yes
add action=mark-connection chain=forward comment=\
"Mark PS3 as p1 with PASSTHROUGH" disabled=no new-connection-mark=PS3 \
passthrough=yes port=5223 protocol=tcp
add action=mark-connection chain=forward comment=\
"Mark PS3 as p1 with PASSTHROUGH" disabled=no new-connection-mark=PS3 \
passthrough=yes port=3479 protocol=udp
add action=mark-connection chain=forward comment=\
"Mark PS3 as p1 with PASSTHROUGH" disabled=no new-connection-mark=PS3 \
passthrough=yes port=3658 protocol=udp
add action=mark-connection chain=forward comment=\
"Mark PS3 as p1 with PASSTHROUGH" disabled=no new-connection-mark=PS3 \
passthrough=yes port=3478 protocol=udp
add action=mark-packet chain=forward comment=\
"Mark PS3 as p1 with NO PASSTHROUGH" connection-mark=PS3 disabled=no \
new-packet-mark=p1 passthrough=no protocol=tcp
add action=mark-packet chain=forward comment="Any identifiable P2P is set at p\
8 with NO PASSTHROUGH. This is the lowest priority we can configure" \
connection-mark=p2p_conn disabled=no new-packet-mark=p8 passthrough=no
add action=mark-packet chain=forward comment=\
"Mark XBox as p1 with NO PASSTHROUGH" disabled=no new-packet-mark=p1 \
passthrough=no port=3074 protocol=tcp
add action=mark-packet chain=forward comment=\
"Mark XBox as p1 with NO PASSTHROUGH" disabled=no new-packet-mark=p1 \
passthrough=no port=3074 protocol=udp
add action=mark-packet chain=forward comment=\
"Mark XBox as p1 with NO PASSTHROUGH" disabled=no new-packet-mark=p1 \
passthrough=no port=88 protocol=udp
add action=mark-packet chain=forward comment=\
"Mark Wii as p1 with NO PASSTHROUGH" disabled=no new-packet-mark=p1 \
passthrough=no port=28910 protocol=tcp
add action=mark-packet chain=forward comment=\
"Mark Wii as p1 with NO PASSTHROUGH" disabled=no new-packet-mark=p1 \
passthrough=no port=29900-29901 protocol=tcp
add action=mark-packet chain=forward comment=\
"Mark Wii as p1 with NO PASSTHROUGH" disabled=no new-packet-mark=p1 \
passthrough=no port=28920 protocol=tcp
add action=mark-connection chain=forward comment=\
"Mark DNS as p1 with NO PASSTHROUGH" disabled=no new-connection-mark=DNS \
passthrough=yes port=53 protocol=tcp
add action=mark-connection chain=forward comment=\
"Mark DNS as p1 with NO PASSTHROUGH" disabled=no new-connection-mark=DNS \
passthrough=yes port=53 protocol=udp
add action=mark-packet chain=forward comment=\
"Mark DNS as p1 with NO PASSTHROUGH" connection-mark=DNS disabled=no \
new-packet-mark=p1 passthrough=no
add action=mark-connection chain=forward comment="This captures some streaming\
\_video, such as most google video, cnn and some others" disabled=no \
layer7-protocol=video_http new-connection-mark=video passthrough=yes
add action=mark-packet chain=forward comment="How we handle qos for streams is\
\_defined here. currently, it is set to p5" connection-mark=video \
disabled=no new-packet-mark=p5 passthrough=no
add action=mark-packet chain=forward comment=\
"This will match Hulu and similar streams - p5 NO PASSTHROUGH" disabled=\
no new-packet-mark=p5 passthrough=no port=1935 protocol=tcp
add action=mark-packet chain=forward comment="This will match the ms-streaming\
\_protocol used by several online tv stations - p5 NO PASSTHROUGH" \
disabled=no new-packet-mark=p5 passthrough=no port=1755 protocol=tcp
add action=mark-packet chain=forward comment="This will match the RTSP streami\
ng protocol used by several online tv stations - p5 NO PASSTHROUGH" \
disabled=no new-packet-mark=p5 passthrough=no port=554 protocol=tcp
add action=mark-packet chain=forward comment=\
"VOIP - SIP - Set for p2 with NO PASSTHROUGH" disabled=no \
new-packet-mark=p2 passthrough=no port=5060-5061 protocol=tcp
add action=mark-packet chain=forward comment=\
"VOIP - SIP - Set for p2 with NO PASSTHROUGH" disabled=no \
new-packet-mark=p2 passthrough=no port=5060-5061 protocol=udp
add action=mark-packet chain=forward comment="ICMP is p2 NO PASSTHROUGH" \
disabled=no new-packet-mark=p2 passthrough=no protocol=icmp
add action=mark-connection chain=forward comment=\
"VOIP - mark DSCP 46 with voip connection mark" disabled=no dscp=46 \
new-connection-mark=voip passthrough=yes
add action=mark-packet chain=forward comment=\
"For the voip connection mark - set to p1 with NO PASSTHROUGH" \
connection-mark=voip disabled=no new-packet-mark=p1 passthrough=no
add action=mark-packet chain=forward comment=\
"Pop3 - Set at p3 with NO PASSTHROUGH" disabled=no new-packet-mark=p3 \
passthrough=no port=110 protocol=tcp
add action=mark-packet chain=forward comment=\
"SMTP traffic will be p3 by default NO PASSTHROUGH " disabled=no \
new-packet-mark=p3 passthrough=no port=25 protocol=tcp
add action=mark-packet chain=forward comment="NTP is set at p1. It does not ta\
ke much bandwidth, so nearly any priority above 3 or so should be ok" \
disabled=no new-packet-mark=p1 passthrough=no port=123 protocol=udp
add action=mark-connection chain=forward comment=\
"Secure SMTP - Set at p3 with NO PASSTHROUGH" disabled=no \
new-connection-mark=Mail passthrough=yes port=465 protocol=tcp
add action=mark-connection chain=forward comment=\
"Secure SMTP - Set at p3 with NO PASSTHROUGH" disabled=no \
new-connection-mark=Mail passthrough=yes port=587 protocol=tcp
add action=mark-connection chain=forward comment=\
"Secure IMAP- Set at p3 with NO PASSTHROUGH" disabled=no \
new-connection-mark=Mail passthrough=yes port=485 protocol=tcp
add action=mark-connection chain=forward comment=\
"IMAP over SSL- Set at p3 with NO PASSTHROUGH" disabled=no \
new-connection-mark=Mail passthrough=yes port=993 protocol=tcp
add action=mark-connection chain=forward comment=\
"IMAP - Set at p3 with NO PASSTHROUGH" disabled=no new-connection-mark=\
Mail passthrough=yes port=143 protocol=tcp
add action=mark-connection chain=forward comment=\
"POP3 over SSL- Set at p3 with NO PASSTHROUGH" disabled=no \
new-connection-mark=Mail passthrough=yes port=995 protocol=tcp
add action=mark-packet chain=forward comment=\
"POP3 over SSL- Set at p3 with NO PASSTHROUGH" connection-mark=Mail \
disabled=no new-packet-mark=p3 passthrough=no
add action=mark-packet chain=forward comment=\
"NNTP is set at p7, NO PASSTHROUGH" disabled=no new-packet-mark=p7 \
passthrough=no port=119 protocol=tcp
add action=mark-packet chain=forward comment=\
"NNTP - Alternate port - is set at p7, NO PASSTHROUGH" disabled=no \
new-packet-mark=p7 passthrough=no port=433 protocol=tcp
add action=mark-packet chain=forward comment="SNMP set at p4 NO PASSTHROUGH" \
disabled=no new-packet-mark=p4 passthrough=no port=161 protocol=udp
add action=mark-packet chain=forward comment=\
"IPSEC-ESP - Set for p3 with NO PASSTHROUGH" disabled=no new-packet-mark=\
p3 passthrough=no protocol=ipsec-esp
add action=mark-packet chain=forward comment=\
"IPSEC-AH - Set for p3 with NO PASSTHROUGH" disabled=no new-packet-mark=\
p3 passthrough=no protocol=ipsec-ah
add action=mark-packet chain=forward comment=\
"RDP - Set for p3 with NO PASSTHROUGH" disabled=no new-packet-mark=p3 \
passthrough=no port=3389 protocol=tcp
add action=mark-packet chain=forward comment="SSH p2 NO PASSTHROUGH" \
disabled=no new-packet-mark=p2 passthrough=no port=22 protocol=tcp
add action=mark-packet chain=forward comment="telnet p2 NO PASSTHROUGH" \
disabled=no new-packet-mark=p2 passthrough=no port=23 protocol=tcp
add action=mark-packet chain=forward comment="WINBOX p1 NO PASSTHROUGH" \
disabled=no new-packet-mark=p1 passthrough=no port=8291 protocol=tcp
add action=mark-connection chain=forward comment="For a single IP making over \
50 connections OUTBOUND - Jump to the chain that will process that traffic\
\_- will be HTTPS or some unidentified protocol - MOST LIKELY P2P or torre\
nts" connection-limit=50,32 connection-state=new disabled=no dst-port=\
80,443 new-connection-mark=HighConnectRates passthrough=yes protocol=tcp \
src-address-list=QOSCustomerIPs
add action=return chain=HighConnectRate comment="Do not count connections for \
users in the DoNotTestConnectionCounts address list" disabled=no \
src-address-list=DoNotTestConnectionCounts
add action=add-src-to-address-list address-list=HighConnectionIP \
address-list-timeout=1h chain=HighConnectRate comment="For anyone who is m\
aking more connections than we want, we will grab their IP for 1 hour. " \
disabled=no src-address-list=QOSCustomerIPs
add action=mark-packet chain=HighConnectRate comment="Set users making high co\
nnection counts on HTTPS port, we will change to p7 for these users" \
disabled=no new-packet-mark=p7 passthrough=no
add action=jump chain=forward connection-mark=HighConnectRates disabled=no \
jump-target=HighConnectRate
add action=mark-connection chain=forward comment="Mark HTTP/S connections" \
disabled=no new-connection-mark=HTTP/S passthrough=yes port=80,443 \
protocol=tcp
add action=mark-packet chain=forward comment=\
"bytes 0-1000000 will be treated as p3" connection-bytes=0-1000000 \
connection-mark=HTTP/S disabled=no new-packet-mark=p3 passthrough=no
add action=mark-packet chain=forward comment=\
"bytes 1000001-5000000 will be treated as p4" connection-bytes=\
1000001-5000000 connection-mark=HTTP/S disabled=no new-packet-mark=p4 \
passthrough=no
add action=mark-packet chain=forward comment=\
"Remaining bytes per flow are treated as p5" connection-bytes=5000001-0 \
connection-mark=HTTP/S disabled=no new-packet-mark=p5 passthrough=no
add action=mark-packet chain=forward comment="Set remaining SSL to p1" \
disabled=no new-packet-mark=p3 passthrough=no port=443 protocol=tcp
add action=mark-packet chain=forward comment=\
"Set remaining UDP small packets to p1" disabled=no new-packet-mark=p3 \
packet-size=0-800 passthrough=no protocol=udp
add action=mark-packet chain=forward comment=\
"Set remaining UDP packets to p5" disabled=no new-packet-mark=p5 \
passthrough=no protocol=udp
add action=mark-packet chain=forward comment="Everything else TCP" disabled=\
no new-packet-mark=p5 passthrough=no protocol=tcp
add action=mark-packet chain=forward comment="Everything else UDP" disabled=\
no new-packet-mark=p5 passthrough=no protocol=udp
add action=mark-packet chain=forward comment="Everything else" disabled=no \
new-packet-mark=p5 passthrough=no
/ip firewall nat
add action=dst-nat chain=dstnat comment="7 to Art's computer" disabled=no \
dst-port=7 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.109 to-ports=7
add action=dst-nat chain=dstnat comment="9 to Art's computer" disabled=no \
dst-port=9 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.109 to-ports=9
add action=dst-nat chain=dstnat comment="22 to Mom's computer" disabled=no \
dst-port=22 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=22
add action=dst-nat chain=dstnat comment="53 to Mom's computer" disabled=no \
dst-port=53 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=22
add action=dst-nat chain=dstnat comment="54 to Mom's computer" disabled=no \
dst-port=54 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=22
add action=dst-nat chain=dstnat comment="123 to Mom's computer" disabled=no \
dst-port=123 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=22
add action=dst-nat chain=dstnat comment="407 to Mom's computer" disabled=no \
dst-port=407 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=407
add action=dst-nat chain=dstnat comment="1280 to 192.168.1.1" disabled=no \
dst-port=1280 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.1 to-ports=80
add action=dst-nat chain=dstnat comment="1281 to 192.168.1.20" disabled=no \
dst-port=1281 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.20 to-ports=80
add action=dst-nat chain=dstnat comment="1282 to 192.168.1.21" disabled=no \
dst-port=1282 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.21 to-ports=80
add action=dst-nat chain=dstnat comment="1290 to 192.168.88.1" disabled=no \
dst-port=1290 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.88.1 to-ports=80
add action=dst-nat chain=dstnat comment="3283 to Mom's computer" disabled=no \
dst-port=3283 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=3283
add action=dst-nat chain=dstnat comment="3283 to Mom's computer" disabled=no \
dst-port=3283 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.98 to-ports=3283
add action=dst-nat chain=dstnat comment="5900 to Mom's computer" disabled=no \
dst-port=5900 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=5900
add action=dst-nat chain=dstnat comment="5900 to Mom's computer" disabled=no \
dst-port=5900 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.98 to-ports=5900
add action=dst-nat chain=dstnat comment="3284 to Mom's computer" disabled=no \
dst-port=3284 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=3283
add action=dst-nat chain=dstnat comment="3284 to Mom's computer" disabled=no \
dst-port=3284 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.97 to-ports=3283
add action=dst-nat chain=dstnat comment="5901 to Mom's computer" disabled=no \
dst-port=5901 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=5900
add action=dst-nat chain=dstnat comment="5901 to Mom's computer" disabled=no \
dst-port=5901 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.97 to-ports=5900
add action=masquerade chain=srcnat comment="Added by webbox" disabled=no \
out-interface=ether1-gateway
add action=dst-nat chain=dstnat comment="22 to Mom's computer" disabled=no \
dst-port=22 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=22
add action=dst-nat chain=dstnat comment="53 to Mom's computer" disabled=no \
dst-port=53 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=22
add action=dst-nat chain=dstnat comment="407 to Mom's computer" disabled=no \
dst-port=407 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=407
add action=dst-nat chain=dstnat comment="1281 to 192.168.1.20" disabled=no \
dst-port=1281 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.20 to-ports=80
add action=dst-nat chain=dstnat comment="1280 to 192.168.1.1" disabled=no \
dst-port=1280 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.1 to-ports=80
add action=dst-nat chain=dstnat comment="3283 to Mom's computer" disabled=no \
dst-port=3283 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=3283
add action=dst-nat chain=dstnat comment="3283 to Mom's computer" disabled=no \
dst-port=3283 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.98 to-ports=3283
add action=dst-nat chain=dstnat comment="5900 to Mom's computer" disabled=no \
dst-port=5900 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.98 to-ports=5900
add action=dst-nat chain=dstnat comment="5900 to Mom's computer" disabled=no \
dst-port=5900 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.98 to-ports=5900
add action=dst-nat chain=dstnat comment="3284 to Mom's computer" disabled=no \
dst-port=3284 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=3283
add action=dst-nat chain=dstnat comment="3284 to Mom's computer" disabled=no \
dst-port=3284 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.97 to-ports=3283
add action=dst-nat chain=dstnat comment="5901 to Mom's computer" disabled=no \
dst-port=5901 in-interface=ether1-gateway protocol=tcp to-addresses=\
192.168.1.97 to-ports=5900
add action=dst-nat chain=dstnat comment="5901 to Mom's computer" disabled=no \
dst-port=5901 in-interface=ether1-gateway protocol=udp to-addresses=\
192.168.1.97 to-ports=5900
add action=masquerade chain=srcnat comment="Added by webbox" disabled=no \
out-interface=ether1-gateway
/ip firewall service-port
set ftp disabled=no ports=21
set tftp disabled=no ports=69
set irc disabled=no ports=6667
set h323 disabled=no
set sip disabled=no ports=5060,5061
set pptp disabled=no