Snort mailing list archives
RE: No netmask specified for home network
From: Peter Rodger <prodger2008 () yahoo com>
Date: Thu, 24 Feb 2005 10:46:52 -0800 (PST)
Used 10.1.14.0/24 too and still got the same error. No clue why? Any help will be appreciated! Thanks, Peter --- Lee Clemens <snort () leeclemens net> wrote:
You cannot use 10.1.14/24 either. You will need to make it 10.1.14.0/24. the x.x.x.0 is the start of any /24 network block. If your IP address starts with 10.1.14 and your subnet is 255.255.255.0, then use 10.1.14.0/24 as HOME_NET. That should fix it! --lee -----Original Message----- From: Peter Rodger [mailto:prodger2008 () yahoo com] Sent: Wednesday, February 23, 2005 5:10 PM To: snort () leeclemens net Subject: RE: [Snort-users] No netmask specified for home network Thanks for your help. I used 10.1.14/24 as a home_net before and I still got the same error. (255.255.255.0 is the subnet mask). I really do not know what's wrong with it. Thanks, Peter --- Lee Clemens <snort () leeclemens net> wrote:Are you using a cable/dsl router? If so you're netmask can't be /32. What's your subnet mask set to on your TCP/IP Properties for your ethernet? This number should relate to the slashnotation addresstoenter as HOME_NET. Although you need to convert the 255.255.255.xxx number to slash notation (see below) Let me know if you have any other questions or if that doesn't help! --Lee Here's a subnetting cheat sheet too: Subnet Cheat Sheet
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Hosts Netmask Amount of a Class C /30 4 255.255.255.252 1/64 /29 8 255.255.255.248 1/32 /28 16 255.255.255.240 1/16 /27 32 255.255.255.224 1/8 /26 64 255.255.255.192 1/4 /24 256 255.255.255.0 1 /23 512 255.255.254.0 2 /22 1024 255.255.252.0 4 /21 2048 255.255.248.0 8 /20 4096 255.255.240.0 16 /19 8192 255.255.224.0 32 /18 16384 255.255.192.0 64 /17 32768 255.255.128.0 128 /16 65536 255.255.0.0 256
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Guide to sub-class C blocks /25 -- 2 Subnets -- 126 Hosts/Subnet Network # IP Range Broadcast .0 .1-.126 .127 .128 .129-.254 .255 /30 -- 64 Subnets -- 2 Hosts/Subnet Network # IP Range Broadcast .0 .1-.2 .3 .4 .5-.6 .7 .8 .9-.10 .11 .12 .13-.14 .15 .16 .17-.18 .19 .20 .21-.22 .23 .24 .25-.26 .27 .28 .29-.30 .31 .32 .33-.34 .35 .36 .37-.38 .39 .40 .41-.42 .43 .44 .45-.46 .47 .48 .49-.50 .51 .52 .53-.54 .55 .56 .57-.58 .59 .60 .61-.62 .63 .64 .65-.66 .67 .68 .69-.70 .71 .72 .73-.74 .75 .76 .77-.78 .79 .80 .81-.82 .83 .84 .85-.86 .87 .88 .89-.90 .91 .92 .93-.94 .95 .96 .97-.98 .99 .100 .101-.102 .103 .104 .105-.106 .107 .108 .109-.110 .111 .112 .113-.114 .115 .116 .117-.118 .119 .120 .121-.122 .123 .124 .125-.126 .127 .128 .129-.130 .131 .132 .133-.134 .135 .136 .137-.138 .139 .140 .141-.142 .143 .144 .145-.146 .147 .148 .149-.150 .151 .152 .153-.154 .155 .156 .157-.158 .159 .160 .161-.162 .163 .164 .165-.166 .167 .168 .169-.170 .171 .172 .173-.174 .175 .176 .177-.178 .179 .180 .181-.182 .183 .184 .185-.186 .187 .188 .189-.190 .191 .192 .193-.194 .195 .196 .197-.198 .199 .200 .201-.202 .203 .204 .205-.206 .207 .208 .209-.210 .211 .212 .213-.214 .215 .216 .217-.218 .219 .220 .221-.222 .223 .224 .225-.226 .227 .228 .229-.230 .231 .232 .233-.234 .235 .236 .237-.238 .239 .240 .241-.242 .243 .244 .245-.246 .247 .248 .249-.250 .251 .252 .253-.254 .255 /26 -- 4 Subnets -- 62 Hosts/Subnet Network # IP Range Broadcast .0 .1-.62 .63 .64 .65-.126 .127 .128 .129-.190 .191 .192 .193-.254 .255 /27 -- 8 Subnets -- 30 Hosts/Subnet Network # IP Range Broadcast .0 .1-.30 .31 .32 .33-.62 .63 .64 .65-.94 .95 .96 .97-.126 .127 .128 .129-.158 .159 .160 .161-.190 .191 .192 .193-.222 .223 .224 .225-.254 .255 /28 -- 16 Subnets -- 14 Hosts/Subnet Network # IP Range Broadcast .0 .1-.14 .15 .16 .17-.30 .31 .32 .33-.46 .47 .48 .49-.62 .63 .64 .65-.78 .79 .80 .81-.94 .95 .96 .97-.110 .111 .112 .113-.126 .127 .128 .129-.142 .143 .144 .145-.158 .159 .160 .161-.174 .175 .176 .177-.190 .191 .192 .193-.206 .207 .208 .209-.222 .223 .224 .225-.238 .239 .240 .241-.254 .255 /29 -- 32 Subnets -- 6 Hosts/Subnet Network # IP Range Broadcast .0 .1-.6 .7 .8 .9-.14 .15 .16 .17-.22 .23 .24 .25-.30 .31 .32 .33-.38 .39 .40 .41-.46 .47 .48 .49-.54 .55 .56 .57-.62 .63 .64 .65-.70 .71 .72 .73-.78 .79 .80 .81-.86 .87 .88 .89-.94 .95 .96 .97-.102 .103 .104 .105-.110 .111 .112 .113-.118 .119 .120 .121-.126 .127
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Current thread:
- No netmask specified for home network Peter Rodger (Feb 23)
- <Possible follow-ups>
- Re: No netmask specified for home network Sean Brown (Feb 23)
- Overhead caused by PCRE? Jeff McCarthy (Feb 28)
- Re: Overhead caused by PCRE? Matt Kettler (Mar 01)
- Re: [Snort-sigs] Overhead caused by PCRE? Brian (Mar 02)
- Overhead caused by PCRE? Jeff McCarthy (Feb 28)
- RE: No netmask specified for home network Peter Rodger (Feb 25)