I have confirmed this is true; small files (Code:
2005:04:20-10:33:56 (none) kernel: DROP: IN=eth1 OUT=eth0 SRC=xxx.xxx.48.21 DST=199.107.154.233 LEN=40 TOS=0x00 PREC=0x00 TTL=127 ID=10567 DF PROTO=TCP SPT=2703 DPT=32790 WINDOW=8280 RES=0x00 ACK FIN URGP=0
2005:04:20-10:33:56 (none) kernel: DROP: IN=eth0 OUT=eth1 SRC=199.107.154.233 DST=xxx.xxx.48.21 LEN=1420 TOS=0x00 PREC=0x00 TTL=51 ID=2041 DF PROTO=TCP SPT=32790 DPT=2703 WINDOW=5840 RES=0x00 ACK URGP=0
2005:04:20-10:34:22 (none) kernel: DROP: IN=eth1 OUT=eth0 SRC=xxx.xxx.48.21 DST=199.107.154.233 LEN=40 TOS=0x00 PREC=0x00 TTL=127 ID=57430 DF PROTO=TCP SPT=2703 DPT=32790 WINDOW=8280 RES=0x00 ACK FIN URGP=0
2005:04:20-10:34:31 (none) kernel: DROP: IN=eth0 OUT=eth1 SRC=199.107.154.233 DST=xxx.xxx.48.21 LEN=1420 TOS=0x00 PREC=0x00 TTL=51 ID=2043 DF PROTO=TCP SPT=32790 DPT=2703 WINDOW=5840 RES=0x00 ACK URGP=0
2005:04:20-10:35:14 (none) kernel: DROP: IN=eth1 OUT=eth0 SRC=xxx.xxx.48.21 DST=199.107.154.233 LEN=40 TOS=0x00 PREC=0x00 TTL=127 ID=31354 DF PROTO=TCP SPT=2703 DPT=32790 WINDOW=8280 RES=0x00 ACK FIN URGP=0
Where 199... is the client and xxx... is our server behind ASL.
I have the FTP connection helper enabled.
AFAICS, turning off the SYN Rate Limiter fixes the problem.
This doesn't make sense to me.
Also, I don't think my ASL 5.2 box at home has this problem with FTP transfers, but I can't try it right now.
Thanks,
Barry
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