[CentOS-es] Ayuda con Multiples Vlan en una interfaz (TRUNK)

Mar Mar 11 15:36:40 UTC 2014

Sip

*Esta el la conf de mi eth0
cat ifcfg-eth0
DEVICE="eth0"
HWADDR="00:80:C8:E1:0E:04"
NM_CONTROLLED="no"
ONBOOT="yes"
BOOTPROTO="none"
TYPE="Ethernet"

y la de mi eth0.1 es
cat ifcfg-eth0.1
DEVICE="eth0.1"
HWADDR="00:80:C8:E1:0E:04"
BOOTPROTO=none
ONBOOT=yes
IPADDR=172.16.114.2
NETMASK=255.255.255.0
GATEWAY=172.16.114.1
USERCTL=no
NETWORK=172.16.114.0
VLAN=yes

el ifconfig me da lo siguiente
#ifconfig
eth0      Link encap:Ethernet  HWaddr 00:80:C8:E1:0E:04
          inet6 addr: fe80::280:c8ff:fee1:e04/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:145615 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1149 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:14990221 (14.2 MiB)  TX bytes:81646 (79.7 KiB)
          Interrupt:18 Base address:0xc000

eth0.1    Link encap:Ethernet  HWaddr 00:80:C8:E1:0E:04
          inet addr:172.16.114.2  Bcast:172.16.114.255  Mask:255.255.255.0
          inet6 addr: fe80::280:c8ff:fee1:e04/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:40397 errors:0 dropped:0 overruns:0 frame:0
          TX packets:442 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3649974 (3.4 MiB)  TX bytes:34492 (33.6 KiB)

eth0.2    Link encap:Ethernet  HWaddr 00:80:C8:E1:0E:04
          inet addr:172.16.115.243  Bcast:172.16.115.255  Mask:255.255.255.0
          inet6 addr: fe80::280:c8ff:fee1:e04/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:676 (676.0 b)

eth0.4    Link encap:Ethernet  HWaddr 00:80:C8:E1:0E:04
          inet addr:172.16.112.2  Bcast:172.16.112.255  Mask:255.255.255.0
          inet6 addr: fe80::280:c8ff:fee1:e04/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:48966 errors:0 dropped:0 overruns:0 frame:0
          TX packets:337 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5238972 (4.9 MiB)  TX bytes:27534 (26.8 KiB)

Pero ninguna de las IP me reponde a los ping.

agregue esta regla al firewall y la VLAN 2 responde

iptables -A FORWARD -i eth0 -j ACCEPT

El 11 de marzo de 2014, 11:12, Francesc Guitart <fguitart en gmx.com> escribió:

> El 11/03/2014 14:27, Pablo Alberto Flores escribió:
> > Estimados.
> >
> > Tengo un centos 6.5 y deseo pasar 3 vlan en una sola interfaz. el SW ya
> > esta configurado como trunk pero no me levanta.
> >
> > si reviso el SW me muestra que hay 3 ip de vlan distintas conectadas.
> > #sh mac address-table | i 0/21
> >     1    0080.c8e1.0e04    DYNAMIC     Fa0/21
> >     2    0080.c8e1.0e04    DYNAMIC     Fa0/21
> >     4    0080.c8e1.0e04    DYNAMIC     Fa0/21
> >
> > #sh ip arp 0080.c8e1.0e04
> > Protocol  Address          Age (min)  Hardware Addr   Type   Interface
> > Internet  172.16.115.243          0   0080.c8e1.0e04  ARPA   Vlan2
> > Internet  172.16.114.2            1   0080.c8e1.0e04  ARPA   Vlan1
> > Internet  172.16.112.2            1   0080.c8e1.0e04  ARPA   Vlan4
> >
> > mi tabla de rutas es la siguente
> > #netstat -rn
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags   MSS Window  irtt
> > Iface
> > 172.16.112.0    0.0.0.0         255.255.255.0   U         0 0          0
> > eth0.4
> > 172.16.115.0    0.0.0.0         255.255.255.0   U         0 0          0
> > eth0.2
> > 172.16.114.0    0.0.0.0         255.255.255.0   U         0 0          0
> > eth0.1
> > 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
> > eth0
> > 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
> > eth0.1
> > 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
> > eth0.2
> > 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
> > eth0.4
> > 0.0.0.0         172.16.115.1    0.0.0.0         UG        0 0          0
> > eth0.2
> >
> > pero no se conecta al mundo. ni siquiera la vlan que tiene el gw por
> defecto
>
>
> Has añadido la linea "VLAN=yes" en?
>
> /etc/sysconfig/network-scripts/ifcfg-eth0.1
> /etc/sysconfig/network-scripts/ifcfg-eth0.2
> /etc/sysconfig/network-scripts/ifcfg-eth0.4
>
>
>
> --
> Francesc Guitart
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