[Asterisk-Users] hdlc setup routing question

[Michael A Rowley]

Hello All,

I am battling a problem I don't know how to fix...  Here is the 
scenario:

Fractionated T1 with 1-6 channels voice, 21-24 channels data.
Comes into a box with Digium T100P, splits off data channes with HDLC, 
to devicec pvc0,
This works fine, but I have a routing problem getting to my machines!

Here is the current set up...

sethdlc hdlc0 fr lmi ansi
sethdlc hdlc0 create 44
ifconfig hdlc0 up
ifconfig pvc0 xxx.xxx.250.74 netmask 255.255.255.252 pointopoint 
xxx.xxx.250.73
ifconfig pvc0:0 xxx.xxx.244.33 netmask 255.255.255.248

route add -default gw xxx.xxx.250.74 metric 1 pvc0

Now, this works, but has some unexpected results.... For example,the 
xxx.xxx.250.74 ip belongs to the phone company, so when I try to use it 
to access my machine, I get no response....   unless I set up the 
alilas to xxx.xxx.244.33, then it works, but  not if I access 244.33, 
only if I access 250.74 ???

my routing tables look like this from route:

host72.sprintne *               255.255.255.252 U     0      0        0 
pvc0
host32.sprintne *               255.255.255.248 U     0      0        0 
pvc0
192.168.1.0     *               255.255.255.0   U     0      0        0 
eth0
loopback        asterisk        255.0.0.0       UG    0      0        0 
lo
default         host74.sprintne 0.0.0.0         UG    1      0        0 
pvc0

and from ip route show

xxx.xxx.250.72/30 dev pvc0  proto kernel  scope link  src xxx.xxx.250.74
xxx.xxx.224.32/29 dev pvc0  proto kernel  scope link  src xxx.xxx.224.33
192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.1
127.0.0.0/8 via 127.0.0.1 dev lo  scope link
default via xxx.xxx.250.74 dev pvc0  scope link  metric 1

what I want to be able to do is to ping xxx.xxx.224.33, and have that 
IP  respond, then use the other IP addresses that I have avaliable as 
my internal server addresses (for the machines to connect to the 
internet), but until I figure out the routing, I am stuck here...  When 
I trace route the xxx.xxx.224.33 address, I get a return of 
xxx.xxx.250.74, when I ping, I get xxx.xxx.250.74, etc.

What I am wondering is if I should not have the system set up more like
pvc0 ip xxx.xxx.250.74 pointopoint xxx.xxx.250.73
eth0 ip xxx.xxx.224.33
eth0:0 192.168.1.1 (for internal routing)
with routing set up as
default route xxx.xxx.224.33
net route xxx.xxx.250.74 src xxx.xxx.244.33

and I am completely baffeled why xxx.xxx.224.72 shows up on the routing 
at all....

This is a wierd setup, and apparently is beyond me... Can anyone help 
me here?

Michael.