Can I use an alias to access my modem admin interface on different IP range?

[philled]

I have an ADSL2+ modem which provides an admin interface on 192.168.1.1. Unfortunately my LAN is 192.168.0.0 so I have no way of accessing the admin pages to manage the modem.

I read that it's possible to use aliases to assign multiple IP addresses to a single NIC and I was wondering whether this would help me access 192.168.1.1 from one of my PCs on 192.168.0.0.

My setup is as follows:

Internal LAN is 192.168.0.0. PCs are on this LAN.
Internet gateway/firewall/general linux server has two NICs:

eth0 - 192.168.0.254
eth1 - no IP address as it's in bridge mode
.
ADSL2+ modem is connected to internet on ppp0 which has a dynamically allocated IP address from my ISP. And is also connected to eth1 by ethernet cable.

What I would like to do is have a setup where I can access the modem's administration pages on 192.168.1.1 from a PC on the 192.168.0.0 LAN. How can I do this?

[sooset]

when you add "ifconfig eth0:1 192.168.1.x" config, Can you ping 192.168.1.1 on your server ?

[philled]

when you add "ifconfig eth0:1 192.168.1.x" config, Can you ping 192.168.1.1 on your server ?

I logged on as root and entered this command:
ifconfig eth0:1 192.168.1.99

My network configs now looks like this:

eth0 Link encap:Ethernet HWaddr 00:50:BA:68:60:7F
inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::250:baff:fe68:607f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:961113 errors:0 dropped:0 overruns:0 frame:0
TX packets:1068489 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:132679720 (126.5 MiB) TX bytes:851195692 (811.7 MiB)
Interrupt:153 Base address:0xf00

eth0:1 Link encap:Ethernet HWaddr 00:50:BA:68:60:7F
inet addr:192.168.1.99 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:153 Base address:0xf00

eth1 Link encap:Ethernet HWaddr 00:10:5A:5B:BF:61
inet6 addr: fe80::210:5aff:fe5b:bf61/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:500804 errors:1 dropped:0 overruns:0 frame:1
TX packets:579972 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:387770966 (369.8 MiB) TX bytes:94077291 (89.7 MiB)
Interrupt:153 Base address:0x2e80

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:462211 errors:0 dropped:0 overruns:0 frame:0
TX packets:462211 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:319176330 (304.3 MiB) TX bytes:319176330 (304.3 MiB)

ppp0 Link encap:Point-to-Point Protocol
inet addr:220.233.xxx.yyy P-t-P:220.233.1.152 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:13362 errors:0 dropped:0 overruns:0 frame:0
TX packets:10047 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:14734288 (14.0 MiB) TX bytes:1644266 (1.5 MiB)

But I still can't ping 192.168.1.1 either from the server or from a PC on the LAN. Was there something else I need to do to make this work?