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Re: [cobalt-users] [RAQ4] IP address not working as expected... what to check?
- Subject: Re: [cobalt-users] [RAQ4] IP address not working as expected... what to check?
- From: "Bill Gibbs" <bgibbs@xxxxxxxxxxxxx>
- Date: Wed Dec 11 13:44:37 2002
- List-id: Mailing list for users to share thoughts on Sun Cobalt products. <cobalt-users.list.cobalt.com>
All your IPS are bound with a netmask of 255.255.255.248, which is a /29, or
8 IPs (6 usuable).
i.e.:
.160 is the network
.161 - .166 is usable
.167 is broadcast (not usable)
I think it's a matter of netmask confusion. Providing your ISP is
providing you a a /28, you will need to correct the netmask to
255.255.255.240.
Since .167 is the broadcast of a /29, that's why it's not working right.
Bill "Elvis" Gibbs
Eduro Technologies, Inc.
main 240-529-2000 | fax 301-662-9552 | cell 301-748-5418
----- Original Message -----
From: "Greg Hewitt-Long" <cobaltusers@xxxxxxxxxxxxxxxxxxx>
To: <cobalt-users@xxxxxxxxxxxxxxx>
Sent: Wednesday, December 11, 2002 3:04 PM
Subject: Re: [cobalt-users] [RAQ4] IP address not working as expected...
what to check?
> >What does ifconfig -a show?
>
>
> [root admin]# /sbin/ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.137 Bcast:65.101.207.143
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:12346 errors:0 dropped:0 overruns:0 frame:0
> TX packets:6067 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> Interrupt:11 Base address:0x6100
>
> eth0:0 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.138 Bcast:65.101.207.143
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:2 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.140 Bcast:65.101.207.143
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:3 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.141 Bcast:65.101.207.143
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:4 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.161 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:5 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.162 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:6 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.163 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:7 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.164 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:8 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.166 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:9 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.167 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:10 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.165 Bcast:65.101.207.167
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:11 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.168 Bcast:65.101.207.175
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:1 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.139 Bcast:65.101.207.143
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth0:12 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F1
> inet addr:65.101.207.169 Bcast:65.101.207.175
Mask:255.255.255.248
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> Interrupt:11 Base address:0x6100
>
> eth1 Link encap:Ethernet HWaddr 00:10:E0:04:C8:F0
> BROADCAST MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> Interrupt:10 Base address:0x6200
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:3924 Metric:1
> RX packets:1206 errors:0 dropped:0 overruns:0 frame:0
> TX packets:1206 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
>
>
>
> >
> >Bill "Elvis" Gibbs
> >Eduro Technologies, Inc.
> >main 240-529-2000 | fax 301-662-9552 | cell 301-748-5418
> >
> >
> >----- Original Message -----
> >From: "Greg Hewitt-Long" <cobaltusers@xxxxxxxxxxxxxxxxxxx>
> >To: <cobalt-users@xxxxxxxxxxxxxxx>
> >Sent: Wednesday, December 11, 2002 1:55 PM
> >Subject: Re: [cobalt-users] [RAQ4] IP address not working as expected...
> >what to check?
> >
> >
> >> >Can you ping the "unusable" IP from the Cobalt shell?
> >>
> >>
> >> Yes - I never tried on the cobalt with the IP problem - but it does
ping
> >on the cobalt itself, not on any of our OTHER servers though.
> >>
> >> Greg
> >>
> >>
> >> >Bill "Elvis" Gibbs
> >> >Eduro Technologies, Inc.
> >> >main 240-529-2000 | fax 301-662-9552 | cell 301-748-5418
> >> >
> >> >
> >> >----- Original Message -----
> >> >From: "Greg Hewitt-Long" <cobaltusers@xxxxxxxxxxxxxxxxxxx>
> >> >To: <cobalt-users@xxxxxxxxxxxxxxx>
> >> >Sent: Wednesday, December 11, 2002 1:42 PM
> >> >Subject: Re: [cobalt-users] [RAQ4] IP address not working as
expected...
> >> >what to check?
> >> >
> >> >
> >> >> >On Wednesday 11 December 2002 11:30, Greg Hewitt-Long wrote:
> >> >> >> I've just tried to create a new site on a new IP address - this
> >address
> >> >is
> >> >> >> in the middle of a 16 IP address allocation from my colocation
> >> >provider -
> >> >> >> the previous IP and the NEXT IP in the range work find - this one
> >does
> >> >not
> >> >> >> appear to ping, respond to httpd or traceroute - but they say
it's
> >> >routed
> >> >> >> properly in their systems.
> >> >> >>
> >> >> >> Is there anything I can check on the server to find out why it
might
> >or
> >> >> >> might not be the Cobalt end?
> >> >> >>
> >> >> >> I've already removed and recreated the site, and rebooted - still
I
> >> >can't
> >> >> >> get to this IP address.
> >> >> >>
> >> >> >Normally with a /28 subnet (16 IP addresses)
> >> >> >The least address is the network (not useable)
> >> >> >The most address is broadcast (not useable)
> > > >> >The least +1 is usually the gateway (not useable)
> > > >> >So with 16 IP addresses you really only have 13 available.
> > > >> >
> > > >> >Just make sure you are not using the (not useable)
> > > >>
> >> >>
> >> > > This was supposed to be useable IPs, from: 65.101.207.161 to
> >> >65.101.207.173 - the one that's not working is .167 ?!?
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> >Gerald
> >> >>
> >> >> --
> >> >> http://www.webyourbusiness.com/
> >> >> Providers of E-Commerce Software &
> >> >> Web Design Consultancy and Services.
> >> >> PH: (970) 266-0195 FAX: (970) 266-0158
> >> >>
> >> >> _____________________________________
> >> >> cobalt-users mailing list
> >> >> cobalt-users@xxxxxxxxxxxxxxx
> >> >> To subscribe/unsubscribe, or to SEARCH THE ARCHIVES, go to:
> >> > > http://list.cobalt.com/mailman/listinfo/cobalt-users
> >> > >
> >> >
> >> >_____________________________________
> >> >cobalt-users mailing list
> >> >cobalt-users@xxxxxxxxxxxxxxx
> >> >To subscribe/unsubscribe, or to SEARCH THE ARCHIVES, go to:
> >> >http://list.cobalt.com/mailman/listinfo/cobalt-users
> >>
> >> --
> >> http://www.webyourbusiness.com/
> >> Providers of E-Commerce Software &
> >> Web Design Consultancy and Services.
> >> PH: (970) 266-0195 FAX: (970) 266-0158
> >>
> >> _____________________________________
> >> cobalt-users mailing list
> >> cobalt-users@xxxxxxxxxxxxxxx
> >> To subscribe/unsubscribe, or to SEARCH THE ARCHIVES, go to:
> >> http://list.cobalt.com/mailman/listinfo/cobalt-users
> >>
> >
> >_____________________________________
> >cobalt-users mailing list
> >cobalt-users@xxxxxxxxxxxxxxx
> >To subscribe/unsubscribe, or to SEARCH THE ARCHIVES, go to:
> >http://list.cobalt.com/mailman/listinfo/cobalt-users
>
> --
> http://www.webyourbusiness.com/
> Providers of E-Commerce Software &
> Web Design Consultancy and Services.
> PH: (970) 266-0195 FAX: (970) 266-0158
>
> _____________________________________
> cobalt-users mailing list
> cobalt-users@xxxxxxxxxxxxxxx
> To subscribe/unsubscribe, or to SEARCH THE ARCHIVES, go to:
> http://list.cobalt.com/mailman/listinfo/cobalt-users
>