Its been a while since I used Slackware, but I do believe you need to add
IFNAME[A]="ethX:Y"
eth0 is short for eth0:0 and if you want to add multiple IP addresses to this device you use: eth0:1, eth0:2 etc
Looking at the above, try this:
Code:
# Config information for eth0:
IFNAME[0]="eth0"
IPADDR[0]="202.11.193.114"
NETMASK[0]="255.255.255.240"
USE_DHCP[0]=""
DHCP_HOSTNAME[0]=""
# Alias for extremehosting.ca (eth0:1)
IFNAME[1]="eth0:1"
IPADDR[1]="202.11.193.116"
NETMASK[1]="255.255.255.240"
USE_DHCP[1]=""
DHCP_HOSTNAME[1]=""
# Config information for eth2:
IFNAME[2]="eth2"
IPADDR[2]="202.11.193.117"
NETMASK[2]="255.255.255.240"
USE_DHCP[2]=""
DHCP_HOSTNAME[2]=""