Hello Shorewallers,
hello Tom,
I noticed a funny thing and have difficulties understanding the behaviour.
I have in my rules file (in NEW section)
DNAT:$LOG net loc:192.168.2.2:9000 tcp 9000
DNAT:$LOG net loc:192.168.2.2:9000 udp 9000
DNAT:$LOG net loc:192.168.2.2:9001 tcp 9001
DNAT:$LOG net loc:192.168.2.2:9001 udp 9001
to access some remote CMS video system. I noticed that the connection fails
and I see
Apr 22 12:01:07 bhaal kernel: [2742007.929822]
Shorewall:mangle:PREROUTING:IN=ppp0 OUT= MAC= SRC=195.37.61.178
DST=89.182.135.189 LEN=60 TOS=0x00 PREC=0x00
TTL=52 ID=63109 DF PROTO=TCP SPT=54441 DPT=9000 WINDOW=65535 RES=0x00 SYN
URGP=0
Apr 22 12:01:07 bhaal kernel: [2742007.929838]
Shorewall:nat:PREROUTING:IN=ppp0 OUT= MAC= SRC=195.37.61.178
DST=89.182.135.189 LEN=60 TOS=0x00 PREC=0x00 TT
L=52 ID=63109 DF PROTO=TCP SPT=54441 DPT=9000 WINDOW=65535 RES=0x00 SYN URGP=0
Apr 22 12:01:07 bhaal kernel: [2742007.929861]
Shorewall:mangle:INPUT:IN=ppp0 OUT= MAC= SRC=195.37.61.178
DST=89.182.135.189 LEN=60 TOS=0x00 PREC=0x00 TTL=
52 ID=63109 DF PROTO=TCP SPT=54441 DPT=9000 WINDOW=65535 RES=0x00 SYN URGP=0
Apr 22 12:01:07 bhaal kernel: [2742007.929872]
Shorewall:filter:INPUT:IN=ppp0 OUT= MAC= SRC=195.37.61.178
DST=89.182.135.189 LEN=60 TOS=0x00 PREC=0x00 TTL=
52 ID=63109 DF PROTO=TCP SPT=54441 DPT=9000 WINDOW=65535 RES=0x00 SYN URGP=0
Apr 22 12:01:07 bhaal kernel: [2742007.929896] Shorewall:net2fw:DROP:IN=ppp0
OUT= MAC= SRC=195.37.61.178 DST=89.182.135.189 LEN=60 TOS=0x00 PREC=0x00 TTL=5
2 ID=63109 DF PROTO=TCP SPT=54441 DPT=9000 WINDOW=65535 RES=0x00 SYN URGP=0
and wonder why DROP???
When I add
ACCEPT net fw tcp 9000
ACCEPT net fw tcp 9001
before the DNAT lines to the rules file, it works.
Why? What do I miss?
Shorewall is version 4.6.13.4
OS is OpenSuse Linux 13.2
Kernel is 3.16.7-35 / 64bit
shorewall dump | grep 9000 delivers
2 120 ACCEPT tcp -- * * 0.0.0.0/0
192.168.2.2 tcp dpt:9000 ctorigdstport 9000
0 0 ACCEPT udp -- * * 0.0.0.0/0
192.168.2.2 udp dpt:9000 ctorigdstport 9000
2 120 ~log0 tcp -- * * 0.0.0.0/0
89.182.135.189 [goto] tcp dpt:9000
0 0 ~log1 udp -- * * 0.0.0.0/0
89.182.135.189 [goto] udp dpt:9000
2 120 DNAT tcp -- * * 0.0.0.0/0
0.0.0.0/0 to:192.168.2.2:9000
0 0 DNAT udp -- * * 0.0.0.0/0
0.0.0.0/0 to:192.168.2.2:9000
Thanks for pointers?
--
Florian Piekert, PMP [email protected]
Spargelweg 5 Telephone+Fax: +49-179- 3928582
38179 Schwülper-Walle/Germany
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