problemas com proxy, router!!

[krlsedu]

olá, tenho um proxy e o qual esta sendo testado, em uma sub-rede, tem as seguintes configuraçoes de ip:

# The loopback network interface
auto lo
iface lo inet loopback
#
# The primary network interface
auto eth0
iface eth0 inet dhcp
#
# The secondary network interface
auto eth1
iface eth1 inet static
      address 192.168.1.1
      netmask 255.255.255.0
      network 192.168.1.0
      broadcast 192.168.1.255

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:11:5b:38:bf:d2 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.5/24 brd 192.168.0.255 scope global eth0
    inet6 fe80::211:5bff:fe38:bfd2/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 00:e0:4e:15:85:ed brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.1/24 brd 192.168.1.255 scope global eth1
    inet6 fe80::2e0:4eff:fe15:85ed/64 scope link
       valid_lft forever preferred_lft forever

tabela de roteaamento
192.168.1.0/24 dev eth1  proto kernel  scope link  src 192.168.1.1
192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.5
169.254.0.0/16 dev eth0  scope link  metric 1000
default via 192.168.0.254 dev eth0  metric 100

squid.conf

ttp_port 3128
visible_hostname regional_proxy

cache_mem 256 MB
maximum_object_size_in_memory 25 KB
maximum_object_size 2000 MB
minimum_object_size 0 KB
cache_swap_low 90
cache_swap_high 95
cache_dir ufs /var/spool/squid 20000 16 256
cache_access_log /var/log/squid/access.log
refresh_pattern ^ftp: 15 20% 2280
refresh_pattern ^gopher: 15 0% 2280
refresh_pattern . 15 20% 2280

acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl SSL_ports port 443 563
acl Safe_ports port 80 # http
acl Safe_ports port 1863 # msn
acl Safe_ports port 5160 # msn
acl Safe_ports port 3050 # mcsistema
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 563 # https, snews
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl Safe_ports port 901 # SWAT
acl purge method PURGE
acl CONNECT method CONNECT

http_access allow manager localhost
http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports

acl proibidos dstdom_regex "/etc/squid/proibidos.txt"
http_access deny proibidos

acl redelocal src 192.168.0.0/16
http_access allow localhost
http_access allow redelocal

http_access deny all


dhcp3.conf

# Nome do servidor DNS, nesse caso usei o servidor da rede externa.
# Podemos ter varios servidores, separados por virgulas.
# Tambem eh possivel usar hostnames no lugar de IPs.
option domain-name-servers 200.174.230.132;
#
# Tempo padrao e maximo, respectivamente,
# da duracao da concessao do IP.
default-lease-time 3600;
max-lease-time 7200;

#
# Configuracoes da subrede para onde o DHCP concedera IPs.
subnet 192.168.1.0 netmask 255.255.255.0 {
  # Faixa dos IPs a serem concedidos.
  range 192.168.1.1 192.168.1.254;
  # Endereco do gateway padrao.
  option routers 192.168.1.1;
}


tenho os seguintes problemas:
maquinas da faixa 192,168,1,x nao pingam demais maquinas, nem internet, mas navegam, maquinas em windows.
as maquinas teem de acessar um banco de dados remoto em um servidor com o seguinte ip 192.168.1.10, usando um executavel do firestarter que busca o banco de dados no servidor.

desde ja agradeço a atenção!!

[marcinhostudiopro]

Limpa o firewall para ter certeza de que ele não esta atrapalhando.
$ sudo iptables -F

[krlsedu]

o iptables nao esta atrapalhando, pois liberei a porta do programa e nao funcionou nem assim