Estou com problema de "Descoberta e
Divulga��o"(protocolos ARP e RIP 2) de endere�os IP e suas m�scaras, em
roteadores CISCO 2510. A rede Corporativa � composta de v�rios roteadores ASN
da Bay Networks(Nortel) e apenas dois modelo 2510 da Cisco, e s�o exatamente
esses da Cisco que acredito serem os respons�veis pela propaga��o de endere�os
com as m�scaras incorretas( de Broadcasting).
Abaixo est�o o desenho do ramo da rede onde est� acontecendo o problema e
alguns textos de configura��o capturados nos roteadores.
Ramo da Rede WAN onde est�o os roteadores CISCO 2501
|---> Link p/ resto da
WAN
|
__________
__________
|_|
| IP:
192.168.1.153
IP: 192.168.1.154
|
|
| ASN
n | Mask: 255.255.255.252 Mask:
255.255.255.252| CISCO 1 |
|__________|------------------------------------------------------------------------|__________|
IP: 192.168.1.157
|
Mask: 255.255.255.252 |
__________
|
| |
IP: 192.168.1.158
|
| CISCO 2 | Mask: 255.255.255.252
|
|__________|----------------------------------------------------------
Tabelas de rotas dos roteadores:
� Roteador ASN
Destination
Mask Proto
Age Cost NextHop Addr
/ AS
--------------- --------------- ----- -------- --------
---------------------
....
192.168.1.148 255.255.255.252
RIP 15
4
192.168.1.25
192.168.1.152 255.255.255.252 LOCAL 1824845
0 192.168.1.153
192.168.1.156 255.255.255.252
RIP 5
2
192.168.1.154
192.168.1.158 255.255.255.255
RIP 5
2
192.168.1.154
192.168.1.160 255.255.255.252
RIP 15
4 192.168.1.25
.....
� Roteador Cisco-1
Codes: C - connected, S - static, I - IGRP, R -
RIP, M - mobile, B - BGP
D - EIGRP, EX
- EIGRP external, O - OSPF, IA - OSPF inter
area
N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2
E1 -
OSPF external type 1, E2 - OSPF external type 2, E -
EGP
i - IS-IS, L1 - IS-IS level-1, L2
- IS-IS level-2, * - candidate default
U - per-user static route, o - ODR
Gateway of last resort is 0.0.0.0 to network
0.0.0.0
....
R 192.168.1.128/30
[120/2] via 192.168.1.153, 00:00:17,
Serial0
R 192.168.1.132/30 [120/3] via
192.168.1.153, 00:00:17,
Serial0
C 192.168.1.153/32 is
directly connected, Serial0
C
192.168.1.152/30 is directly connected,
Serial0
C 192.168.1.156/30 is directly
connected, Serial1
C
192.168.1.158/32 is directly connected,
Serial1
R 192.168.1.144/30
[120/4] via 192.168.1.153, 00:00:17,
Serial0
R 192.168.1.148/30 [120/4] via
192.168.1.153, 00:00:17, Serial0
....
S* 0.0.0.0/0 is
directly connected, Serial0
� Roteador Cisco-2
Codes: C - connected, S - static, I - IGRP, R -
RIP, M - mobile, B - BGP
D - EIGRP, EX
- EIGRP external, O - OSPF, IA - OSPF inter
area
N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2
E1 -
OSPF external type 1, E2 - OSPF external type 2, E -
EGP
i - IS-IS, L1 - IS-IS level-1, L2
- IS-IS level-2, * - candidate default
U - per-user static route, o - ODR
Gateway of last resort is 192.168.1.157 to network 0.0.0.0
.....
R 192.168.1.132/30 [120/4]
via 192.168.1.157, 00:00:13,
Serial0
R 192.168.1.153/32
[120/1] via 192.168.1.157, 00:00:13,
Serial0
R 192.168.1.152/30
[120/1] via 192.168.1.157, 00:00:13,
Serial0
C 192.168.1.156/30 is directly
connected, Serial0
....
R* 0.0.0.0/0 [120/1] via
192.168.1.157, 00:00:11, Serial0
Configura��es dos Roteadores:
� Roteador ASN
� Roteador Cisco-1
Using 1063 out of 32762 bytes
!
version
11.2
service timestamps debug uptime
service timestamps log
uptime
service password-encryption
no service udp-small-servers
no
service tcp-small-servers
!
hostname SPTL
!
enable password 7
*******************
!
ip subnet-zero
no ip
domain-lookup
!
interface Ethernet0
description connected to
LAN-SPTL
ip address 10.7.100.1 255.255.0.0
!
interface
Serial0
description connected to WAN-USD
ip address
192.168.1.154 255.255.255.252
encapsulation ppp
bandwidth
2048
!
interface Serial1
description connected to
CFPPA
ip address 192.168.1.157 255.255.255.252
encapsulation
ppp
!
router rip
version 2
network
10.0.0.0
network 192.168.1.0
no auto-summary
!
no ip
classless
ip route 0.0.0.0 0.0.0.0 Serial0
logging
10.7.0.1
!
snmp-server community public RO
snmp-server location
Predio do SPTL
snmp-server contact Kleyton C.
Luna,731-2791,[EMAIL PROTECTED]banner
motd ^C Roteador de Acesso a Rede Local do SPTL - Cisco2501 ^C
!
line
con 0
exec-timeout 0 0
password 7
********************
login
line aux 0
line vty 0
4
password 7 **********************
login
!
end
� Roteador Cisco-2
Using 923 out of 32762 bytes
!
version
11.2
service timestamps debug uptime
service timestamps log
uptime
service password-encryption
no service udp-small-servers
no
service tcp-small-servers
!
hostname CFPPA
!
enable password 7
***********************
!
ip subnet-zero
no ip
domain-lookup
!
interface Ethernet0
description connected to
LAN-CFPPA
ip address 10.6.100.1 255.255.0.0
!
interface
Serial0
description connected to SPTL
ip address
192.168.1.158 255.255.255.252
encapsulation ppp
!
interface
Serial1
no ip address
shutdown
!
router
rip
version 2
network 10.0.0.0
network
192.168.1.0
no auto-summary
!
no ip classless
snmp-server
community public RO
snmp-server location Laboratorio de Automacao do
CFPPA
snmp-server contact Kleyton C.
Luna,731-2791,[EMAIL PROTECTED]banner
motd ^C Roteador do CFPPA ^C
!
line con 0
exec-timeout 0
0
password 7 ********************
login
line aux
0
line vty 0 4
password 7
*********************
login
!
end
