IP Addressing Bug?

When assigning an IP address of 169.254.43.76 with a subnet mask of
255.255.255.252 an error is thrown stating "The combination of IP address and
Subnet mask is invalid. All of the bits in the host address portion of the IP
address are set to 1. Please enter a valid combination of IP address and
Subnet mask."

Bug?

"MojoMatt" <(E-Mail Removed)> wrote in message
news:4EB42900-C6E5-464C-9F26-(E-Mail Removed)...
> When assigning an IP address of 169.254.43.76 with a subnet mask of
> 255.255.255.252 an error is thrown stating "The combination of IP address
> and
> Subnet mask is invalid. All of the bits in the host address portion of the
> IP
> address are set to 1. Please enter a valid combination of IP address and
> Subnet mask."
>
> Bug?

Possibles:

1. Look for typos,...what you are putting in may not match what you say you
are doing in this post.

2. The 169.254.*.* is a special reserved Range,...maybe that is the
problem. Try a valid RFC Private Range

Anyway,....

Working in the 4th octet, this mask will produce these "networks". The ID
is the first, the Broadcast is the second,..the usable range is the two
address between them:

169.254.43.*
255.255.255.252

ID Br-Cast
0 3
4 7
8 11
12 15
16 19
20 23
24 27
28 31
32 35
36 39
40 43
44 47
48 51
52 55
56 59
60 63
64 67
68 71
72 75
76 79
80 83
84 87
88 91
92 95
96 99
100 103
104 107
108 111
112 115
116 119
120 123
124 127
128 131
132 135
136 139
140 143
144 147
148 151
152 155
156 159
160 163
164 167
168 171
172 175
176 179
180 183
184 187
188 191
192 195
196 199
200 203
204 207
208 211
212 215
216 219
220 223
224 227
228 231
232 235
236 239
240 243
244 247
248 251
252 255


--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------

Thanks Phillip,

Yes I'm sure there are no typos. The same issue ocurred on 3 machines. You
can try yourself and should get the same error. Other "network" ranges work
ok.

"Phillip Windell" wrote:

> "MojoMatt" <(E-Mail Removed)> wrote in message
> news:4EB42900-C6E5-464C-9F26-(E-Mail Removed)...
> > When assigning an IP address of 169.254.43.76 with a subnet mask of
> > 255.255.255.252 an error is thrown stating "The combination of IP address
> > and
> > Subnet mask is invalid. All of the bits in the host address portion of the
> > IP
> > address are set to 1. Please enter a valid combination of IP address and
> > Subnet mask."
> >
> > Bug?
>
> Possibles:
>
> 1. Look for typos,...what you are putting in may not match what you say you
> are doing in this post.
>
> 2. The 169.254.*.* is a special reserved Range,...maybe that is the
> problem. Try a valid RFC Private Range
>
> Anyway,....
>
> Working in the 4th octet, this mask will produce these "networks". The ID
> is the first, the Broadcast is the second,..the usable range is the two
> address between them:
>
> 169.254.43.*
> 255.255.255.252
>
> ID Br-Cast
> 0 3
> 4 7
> 8 11
> 12 15
> 16 19
> 20 23
> 24 27
> 28 31
> 32 35
> 36 39
> 40 43
> 44 47
> 48 51
> 52 55
> 56 59
> 60 63
> 64 67
> 68 71
> 72 75
> 76 79
> 80 83
> 84 87
> 88 91
> 92 95
> 96 99
> 100 103
> 104 107
> 108 111
> 112 115
> 116 119
> 120 123
> 124 127
> 128 131
> 132 135
> 136 139
> 140 143
> 144 147
> 148 151
> 152 155
> 156 159
> 160 163
> 164 167
> 168 171
> 172 175
> 176 179
> 180 183
> 184 187
> 188 191
> 192 195
> 196 199
> 200 203
> 204 207
> 208 211
> 212 215
> 216 219
> 220 223
> 224 227
> 228 231
> 232 235
> 236 239
> 240 243
> 244 247
> 248 251
> 252 255
>
>
> --
> Phillip Windell
> www.wandtv.com
>
> The views expressed, are my own and not those of my employer, or Microsoft,
> or anyone else associated with me, including my cats.
> -----------------------------------------------------
>
>
>

"MojoMatt" <(E-Mail Removed)>wrote:
> When assigning an IP address of 169.254.43.76 with a subnet mask of
> 255.255.255.252 an error is thrown stating "The combination of IP address
> and
> Subnet mask is invalid. All of the bits in the host address portion of the
> IP
> address are set to 1. Please enter a valid combination of IP address and
> Subnet mask."
>
Hi,

Many articles I read, including this one
http://www.duxcw.com/faq/network/autoip.htm , makes me believe that the only
valid subnet mask for the 169.254 range is 255.255.0.0.

ThePro

Thanks for the response ThePro. I read the article and didn't arrive at the
same conclusion as you.

Regardless, from what I can tell the IP address and subnet combination
should be valid and work. The error message itself doesn't even make sense
for this issue. I still think it's an MS bug.

"ThePro" wrote:

> "MojoMatt" <(E-Mail Removed)>wrote:
> > When assigning an IP address of 169.254.43.76 with a subnet mask of
> > 255.255.255.252 an error is thrown stating "The combination of IP address
> > and
> > Subnet mask is invalid. All of the bits in the host address portion of the
> > IP
> > address are set to 1. Please enter a valid combination of IP address and
> > Subnet mask."
> >
> Hi,
>
> Many articles I read, including this one
> http://www.duxcw.com/faq/network/autoip.htm , makes me believe that the only
> valid subnet mask for the 169.254 range is 255.255.0.0.
>
> ThePro
>

This article http://tools.ietf.org/html/rfc3330 makes me believe that you
can't use the 169.254.x.x range for other than auto-configuration.

ThePro

"MojoMatt" <(E-Mail Removed)> wrote:
> Thanks for the response ThePro. I read the article and didn't arrive at
> the
> same conclusion as you.
>
> Regardless, from what I can tell the IP address and subnet combination
> should be valid and work. The error message itself doesn't even make
> sense
> for this issue. I still think it's an MS bug.
>
> "ThePro" wrote:
>
>> "MojoMatt" <(E-Mail Removed)>wrote:
>> > When assigning an IP address of 169.254.43.76 with a subnet mask of
>> > 255.255.255.252 an error is thrown stating "The combination of IP
>> > address
>> > and
>> > Subnet mask is invalid. All of the bits in the host address portion of
>> > the
>> > IP
>> > address are set to 1. Please enter a valid combination of IP address
>> > and
>> > Subnet mask."
>> >
>> Hi,
>>
>> Many articles I read, including this one
>> http://www.duxcw.com/faq/network/autoip.htm , makes me believe that the
>> only
>> valid subnet mask for the 169.254 range is 255.255.0.0.
>>
>> ThePro
>>

"MojoMatt" <(E-Mail Removed)> wrote in message
news:610790EB-2565-4A64-A8DD-(E-Mail Removed)...
> Thanks for the response ThePro. I read the article and didn't arrive at
> the
> same conclusion as you.
>
> Regardless, from what I can tell the IP address and subnet combination
> should be valid and work. The error message itself doesn't even make
> sense
> for this issue. I still think it's an MS bug.

No, I think it is a special Reserved Range that you cannot use for what you
are trying to use it for. The OS treats it differently,...just like it does
127.0.0.1 which is always treated like
127.*.*.* 255.0.0.0 ...no matter what you do with it. Any address
beginning with 127 loops back to the local host no matter what you do with
the next 3 octets.


--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------