ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address

[Wilson Hernandez]

Hello,
    I'am having a problem with a FreeBSD 4.8 setting up a router that 
I'am trying to build I have a couple netBSD router that work fine with 
no errors.
This error I have not seen yet.. I'am trying to get my modem to work 
with kernel-ppp these are the entire errors I'am getting:

This is the modem device:

sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A

( Which would be I guess " /dev/cuaa0 " or " /dev/cuaa1 " cuaa0 =COM1
cuaa1 =COM2 which would be sio0 = COM1 and sio1 = COM2 now this happens 
both on PCI and ISA I figured with ISA it would be different.. )

router# /etc/ppp/pppserv
ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address
?Connection on /dev/cuaa0 is not open.
?Connection on /dev/cuaa0 is not open.
?Connection on /dev/cuaa0 is not open.
?Connection on /dev/cuaa0 is not open.

?Connection on /dev/cuaa0 is not open.
?Connection on /dev/cuaa0 is not open.

 From /var/log/messages

router# tail /var/log/messages
Mar 11 09:16:44 router pppd[1176]: Connection terminated, connected for
1 minutes
Mar 11 09:16:46 router pppd[1219]: pppd 2.3.5 started by wilson, uid 0
Mar 11 09:16:46 router pppd[1219]: Connect: ppp0 <--> /dev/cuaa1
Mar 11 09:17:16 router pppd[1219]: LCP: timeout sending Config-Requests
Mar 11 09:20:39 router pppd[1374]: pppd 2.3.5 started by wilson, uid 0
Mar 11 09:21:25 router pppd[1374]: Connect script failed
Mar 11 09:22:20 router pppd[1480]: pppd 2.3.5 started by wilson, uid 0
Mar 11 09:30:40 router pppd[1219]: Connection terminated, connected for
13 minutes
Mar 11 09:30:40 router pppd[1480]: tcsetattr: Interrupted system call
Mar 11 09:30:44 router pppd[1923]: pppd 2.3.5 started by wilson, uid 0

I would like to fix this " ioctl " error  so I can finish the rest of 
the configurations on this router. And would much more perfer a PCI 
modem to put on there.. Instead of a ISA is why fixing both ISA would 
lead me to fixing PCI modem. Another question is how fast can I up a 
modems speed ?

Thank you.

Wilson.