networking problem

[sidee]

hi all,
i just install linux guest. i can ping the guest from pc but can't telnet or ssh (ssh daemon running). internet also not working from guest.
what else should i check?

host: windows vista
guest: redhat enterprise linux 5.4
guest network setting :
attached to: host-only adapter
name: virtualbox host - only ethernet adapter


GUEST:
/etc/sysconfig/network:
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=localhost.localdomain


/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes
HWADDR=08:00:27:00:2c



HOST:
Ethernet adapter VirtualBox Host-Only Network:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter
Physical Address. . . . . . . . . : 08-00-27-00-F0-2C
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.56.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

[dmcgraw]

How have you configured the network on the guest? Bridged or NAT?

If you have configured for bridged networking, do you have a router on your network?