Não consigo pingar
Olá,
Eu sou meio novo em Linux e tou tendo um problema que não consigo
solucionar.
Eu dei uma pesquisada nos arquivos da lista debian-user ( tb postei uma
msg lá ), usei o Google, e não achei nenhuma solução.
Eu tenho a seguinte situação:
10.0.0.0---(eth1).Linux Box.(eth0) ---216.x.y.0
Bem simples.
Eu conecto meu laptop no eth1 e não consigo pingar o Linux, apesar de
receber um IP do DHCP server que tá rodando no Linux box.
Eu acabei de fazer um upgrade do 2.2.x para o 2.4.18. Antes do upgrade
funcionava.
Eu fiz algumas mudanças no .config pra compilar o kernel e habilitar
IPTABLES ( pra fazer IP Masquarading ... meu próximo passo )
uname -a
Linux debian 2.4.18 #4 SMP Tue Aug 17 04:42:59 PDT 2004 i586 unknown
Alguns testes que eu fiz:
*****
Da minha máquina:
g4:~ rodrigo$ ping 10.0.0.1
PING 10.0.0.1 (10.0.0.1): 56 data bytes
ping: sendto: Host is down
ping: wrote 10.0.0.1 64 chars, ret=-1
ping: sendto: Host is down
ping: wrote 10.0.0.1 64 chars, ret=-1
ping: sendto: Host is down
ping: wrote 10.0.0.1 64 chars, ret=-1
ping: sendto: Host is down
g4:~ rodrigo$ arp -a
? (10.0.0.1) at (incomplete) on en0 [ethernet]
? (10.0.0.255) at ff:ff:ff:ff:ff:ff on en0 [ethernet]
g4:~ rodrigo$ ping 10.0.0.255
PING 10.0.0.255 (10.0.0.255): 56 data bytes
64 bytes from 10.0.0.10: icmp_seq=0 ttl=64 time=0.204 ms
64 bytes from 10.0.0.1: icmp_seq=0 ttl=255 time=16.544 ms (DUP!)
64 bytes from 10.0.0.10: icmp_seq=1 ttl=64 time=0.215 ms
64 bytes from 10.0.0.1: icmp_seq=1 ttl=255 time=1.652 ms (DUP!)
Duplicated packets ... weird ...
g4:~ rodrigo$ arp -a
? (10.0.0.1) at (incomplete) on en0 [ethernet]
? (10.0.0.255) at ff:ff:ff:ff:ff:ff on en0 [ethernet]
Também tentei pingar de uma box rodando Windows 2000 e tb não funcionou
apesar de receber um IP do DHCP server tb.
***
Do Linux box:
debian:/home/rodrigo# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
216.x.y.0 * 255.255.255.128 U 0 0 0 eth0
10.0.0.0 * 255.255.255.0 U 0 0 0 eth1
default 216-x-y-1.ip 0.0.0.0 UG 0 0 0 eth0
debian:/home/rodrigo# arp -n -i eth1
Address HWtype HWaddress Flags Mask iFace
10.0.0.10 ether 00:0D:93:C3:7A:74 C eth1
debian:/home/rodrigo# arp -a -i eth1
? ( 10.0.0.10 ) at 00:0D:93:C3:7A:74 [ether] on eth1
Aqui tem alguns trechos do .config que eu usei pra compilar o kernel.
.config
# Networking options
#
CONFIG_PACKET=m
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=m
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
CONFIG_SYN_COOKIES=y
# IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=m
CONFIG_IP_NF_FTP=m
CONFIG_IP_NF_IRC=m
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_LIMIT=m
CONFIG_IP_NF_MATCH_MAC=m
CONFIG_IP_NF_MATCH_MARK=m
CONFIG_IP_NF_MATCH_MULTIPORT=m
# CONFIG_IP_NF_MATCH_TOS is not set
# CONFIG_IP_NF_MATCH_AH_ESP is not set
# CONFIG_IP_NF_MATCH_LENGTH is not set
# CONFIG_IP_NF_MATCH_TTL is not set
CONFIG_IP_NF_MATCH_TCPMSS=m
CONFIG_IP_NF_MATCH_STATE=m
CONFIG_IP_NF_MATCH_UNCLEAN=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_MIRROR is not set
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_IP_NF_TARGET_REDIRECT is not set
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
CONFIG_IP_NF_NAT_IRC=m
CONFIG_IP_NF_NAT_FTP=m
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_TOS is not set
CONFIG_IP_NF_TARGET_MARK=m
CONFIG_IP_NF_TARGET_LOG=m
# CONFIG_IP_NF_TARGET_ULOG is not set
CONFIG_IP_NF_TARGET_TCPMSS=m
CONFIG_IP_NF_COMPAT_IPCHAINS=m
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_COMPAT_IPFWADM=m
CONFIG_IP_NF_NAT_NEEDED=y
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set
Me desculpem pelo email longo.
Alguma idéia ?
Rodrigo Otavio Paes de Barros Otaviano
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