Cannot ping local IP alias

[Sacha Michel Mallais]

On Jul 17, 2007, at 11:58 AM, Sacha Michel Mallais wrote:

> I'm having problems connecting to an IP alias set up on the same  
> machine as the connection attempt.  The machine (charlotte) can  
> ping localhost and other machines in the subnet, and other machines  
> can ping charlotte, on both its canonical IP and aliased IPs.
>
> This is an extract from arp -a on charlotte:
> lille-int.global-village.net (206.12.148.4) at 0:2:b3:a4:a7:a2 on  
> en0 [ethernet]
> calgary.global-village.net (206.12.148.21) at 0:3:93:b5:db:24 on  
> en0 [ethernet]
> sitemaker.umich.edu (206.12.148.41) at (incomplete) on en0 [ethernet]
> <snip>
>
> So obviously, charlotte doesn't know how to route requests for  
> sitemaker.umich.edu.  The way I set up the IP aliases was to edit / 
> etc/IPAliases.conf:
> en0:206.12.148.41:255.255.255.0
> en0:206.12.148.42:255.255.255.0
> <snip>
>
> I'm guessing that I can use an arp add command to add the route  
> manually, but I'm confused as to why the route isn't automatically  
> set up via the ip alias facility.

I tried this and it didn't work.


> Ultimately, I'll be using curl to pull some data from a specific  
> page on sitemaker.umich.edu.
>
> % sw_vers
> ProductName:    Mac OS X Server
> ProductVersion: 10.3.9
> BuildVersion:   7W98

Has anyone seen this kind of thing before?  Google'ing for solutions  
turned up another person who had this problem on another list, but no  
one responded to his post either.


sacha


-- 
Sacha Michel Mallais             Senior Developer / President
Global Village Consulting Inc.   http://www.global-village.net/
PGP Key ID: 7D757B65             AIM: smallais
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