> -----Original Message----- > From: netfilter-owner@xxxxxxxxxxxxxxx [mailto:netfilter-owner@xxxxxxxxxxxxxxx] > On Behalf Of Grant Taylor > Sent: Wednesday, October 22, 2008 7:08 PM > To: Mail List - Netfilter > Subject: Re: tool to search within cidr blocks > > On 10/22/2008 2:28 PM, Joey wrote: > > I have several ranges of IP's being put into iptables. > > The IP ranges look like this: > > 62.29.0.0/17 > > 62.68.192.0/19 > > 78.40.224.0/21 > > 78.111.96.0/20 > > 78.135.0.0/17 > > > > I am blocking a specific IP from the firewall as logged in messages > > 71.74.56.125. > > In looking at each block of ip's and using a CIDR calculator I can't figure > > out what range it's really coming from. The list I have is pretty huge. > > Is there a tool or a way to ask iptables what rule it matches? Based on all > > my calculations I don't have anything declared that would block that IP. > > > > Thanks! > > Um, 71.74.56.125 is not part of any of the Class A ranges that you are > blocking (62., 77., 78.). So... that sort of implies that something > else is blocking it. > > Do you care to provide the (sanitized) output of an 'iptables-save' for > us to look at? > > OK, I have unloaded, flushed, reloaded, regenerated my ip lists and I can't find why we are blocking the IP number. Here are the block messages: Oct 22 01:27:16 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.122 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=46 ID=45805 PROTO=TCP SPT=40388 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:27:30 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.122 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=46 ID=45806 PROTO=TCP SPT=40388 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:27:57 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.123 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=47 ID=45807 PROTO=TCP SPT=40388 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:34:09 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.125 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=35071 PROTO=TCP SPT=46522 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:34:12 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.125 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=35072 PROTO=TCP SPT=46522 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:34:19 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.125 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=35073 PROTO=TCP SPT=46522 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:34:32 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.124 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=42 ID=35074 PROTO=TCP SPT=46522 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Oct 22 01:34:59 pluto kernel: SPAM-BLOCK-CIDR-TURKEYIN=eth0 OUT= MAC=00:0e:0c:67:16:a2:00:e0:1e:cd:e1:23:08:00 SRC=71.74.56.125 DST=218.144.124.7 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=35075 PROTO=TCP SPT=46522 DPT=25 WINDOW=32850 RES=0x00 SYN URGP=0 Here is the list of IP numbers in an iptables-save format, we build this from our ip numbers lists merging into this which then gets loaded at each respective server. http://web56.net/iptables-save.cfg Any ideas? This is crazy. Thanks! Joey -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
