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IP Address Aliasing causing Telnet and E-mail Problems

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gfsbrian

IS-IT--Management
Mar 14, 2001
1
US
I am currently changing over from all public IP addresses on our WAN to mostly private addresses and a few public, so during the transition, I set up an alias on my SCO Box(SCO_SV Release = 3.2v5.0.2) using:
ifconfig net1 alias 192.168.0.2 netmask 255.255.255.0
It immediately allows me to ping that IP address, but when I try to change a Win 98 computer on my network to 192.168.0.31 and telnet to it, it takes about 1 minute and 20 second to even give me a login prompt! Then after connecting, it works perfectly (not slow or anything). Needless to say, my Outlook Express on this computer usually gives up before connecting correctly.
The odd thing is that if I add the 192.168.0.31 to my /etc/hosts file on the SCO Box, everything speeds up to normal! This creates a problem, however. The mmdf program then puts a prefix of the name I used in the /etc/hosts file for this PC into the E-mail header, so any domain that checks the validation of the domain for incoming E-mails rejects my E-mails that I send, and it doesn't even notify me that the E-mail didn't go!
I know this is long-winded, sorry, but this is driving me crazy!
Thanks,
Brian
 
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