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Helpful answers
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Sep 15, 2012 11:22 PM in response to David Regan Apple Boyby PAHU,★HelpfulYou only need a DHCP Client ID if the ISP (in your case Virgin) requires it. And if they do, they would have advised you of this requirement with their setup information. And, this ID would be set in the Airport base station - not in the Mac, as it is the Airport that is acquiring an IP address from Virgin.
The typical configuration of the Airport base station for this setup is to run in NAT or Network Address Translation. In this mode, it provides local network addresses for all devices connecting to it, whether via wireless or one of the other Ethernet ports (not the one that connects to your ISP hub). These local addresses are typically in the 10.0.1.x IP range. So once the Airport is configured correctly for the ISP, then all you need to be enabling on the Mac is DHCP. It should then acquire an IP address like 10.0.1.5.
If you open System Preferences > Network and select the Airport entry, what IP address is your Mac using? And can you also confirm what subnet mask and router address is set in the Mac.
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by Roger Wilmut1,★HelpfulSep 15, 2012 11:40 PM in response to David Regan Apple Boy
Roger Wilmut1
Sep 15, 2012 11:40 PM
in response to David Regan Apple Boy
Level 9 (78,338 points)
iTunesUnless you have taken steps to change things both your hub and your Airport are issuing IP numbers. As they are in different ranges - 192 for the hub and 10 for the Airport - there isn't an immediate conflict but it can cause problems. You should only have one device issuing IP nuimbers.
You can do one of two things:
1. Set the hub into 'Modem only' mode - (up to date Superhub and firmware required) - this will turn the wireless off. If you have an older hub you can't do this.
2. Set the Airport into 'bridge mode' so that it passes through the IP number allocation by the hub. On the current Airpot Utility software you click 'Manual setting' then click 'Internet' in the toolbar and set 'Connection sharing' to 'Off (Bridge mode). If you are using older software you will need to see if you can find the same facility.
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Sep 16, 2012 7:29 PM in response to Roger Wilmut1by David Regan Apple Boy,Hi guys,
Many thamks for your advice...
The Airport ID is 00:30:65:14:11:87
Under the TCP/IP tab, the settings are:
Configure IPv4: Using DHCP
IP Address: 172:26:0:13
Subnet Mask: 255:255:255:0
Router: 172:26:0:1
DNS Servers: 207:154:64:161
IPv6 Address: fe80:0000:0000:0000:0230:65ff:fe14:1187
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Sep 16, 2012 7:53 PM in response to David Regan Apple Boyby David Regan Apple Boy,Hi,
I have tried to switch the super hub to 'modem only' mode, but this made no difference (other than not being able to access the web with my iMac and mobile phone)...
Have now returned to the original mode!
I cannot access the airport settings via utility, as it appears to be password protected (bought second hand)... Attempted default password of 'public', but this does not work...
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Sep 16, 2012 8:53 PM in response to David Regan Apple Boyby PAHU,There should be a reset button on the Airport that you can access with a ballpoint pen. Press this for one second. You can then use Airport Utility to set a new password.
The network settings you have shown look correct, assuming your Airport has an IP address of 172.26.0.1. You can use the iMac network settings to confirm the details in the iBook are correct. The subnet mask and router address and DNS server addresses should be the same, while the IP address of the iMac should have the same first three numbers (subnet) but a different last number (network address). For example, 172.26.0.15.