Cisco Newbie 1

[odd0n3]

Hi?! i'm just a newbie.. pls be kind to me =)

my network looks like this.. encap is HDLC


router A 10.0.1.1eth0 <> 10.0.0.1se0 <--csu/dsu--><--csu/dsu--> 10.0.0.2se1 <> 10.0.2.1eth1 router B

my PC is 10.0.1.2 ..i telnet 10.0.1.1eth0 ..from inside, i tried to ping my se0 10.0.0.1 ..i got a request timed out..

do i have to configure a static route from my eth0 to se0? how do i do that?

is it &quot;ip route 10.0.0.0 255.255.255.0 10.0.1.1&quot;?

pls answer.. i really need help..

 

[rbryan]

You have not said what subnet mask is being used.
Looking at the config I guess its 24 bits, 255.255.255.0.
Check this is configured correctly on all devices and that your PC default gateway is set to 10.0.1.1.
Once the packet hits the router a ping should work ok, as this network 10.0.0.0 is directly connected.

 

[odd0n3]

Thank you.. all subnets are 255.255.255.0..

yes my PC is configured a 10.0.1.1 gateway..

I am inside the routerA.. in Telnet.. or even in HyperTerminal.. i still couldn't ping serial A..

do i have to configure a static route from eth0 to se0?

 

[odd0n3]

And also, Serial is up, line protocol is up.

router is connected to a csu/dsu...

no clockrate was set..

 

[jdel]

have you tried enabling RIP so a route is discovered?

 

[Jsteve]

Post a running config fro both routers

 

[odd0n3]

routing is enabled.
-----------------------------------------------------------
Current configuration:
!
version 11.1
service config
service udp-small-servers
service tcp-small-servers
!
hostname Router A
!
enable secret
enable password
!
ip subnet-zero
no ip domain-lookup
!
interface Ethernet0
ip address 10.0.1.1 255.255.255.192
no ip route-cache
no ip directed-broadcast
!
interface Serial0
ip address 10.0.0.1 255.255.255.248
no ip route-cache
no ip directed-broadcast
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.0.0.2
!
line con 0
exec-timeout 0 0
line vty 0 4
password
login
!
end
------------------------------------------------------------

Current configuration:
!
version 11.1
service config
service udp-small-servers
service tcp-small-servers
!
hostname Router B
!
enable secret
enable password
!
ip subnet-zero
no ip domain-lookup
!
interface Ethernet0
ip address 10.0.2.1 255.255.255.240
no ip route-cache
no ip directed-broadcast
!
interface Serial0
ip address 10.0.0.2 255.255.255.248
no ip route-cache
no ip directed-broadcast
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.0.0.1
!
line con 0
exec-timeout 0 0
line vty 0 4
password
login
!
end

------------------------------------------------------------

sh ip route

Gateway of last resort is 10.0.0.2 to network 0.0.0.0

10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/29 is directly connected, Serial0
C 10.0.1.0/26 is directly connected, Ethernet0
S* 0.0.0.0/0 [1/0] via 10.0.0.2


I am in Router A.. i just want to know how to connect eth0(routerA) to se0(routerA)?

 

[Jsteve]

From the A router, you would not be able to ping because once you issues the ping command, the packet will be sent out of the interface, You should be able to ping from your pc 10.0.0.2 to the Se0 interface.

 

[odd0n3]

Thanks! yea you're right.. hmm.. i thought i'm having a hardware problem with my router.. thanks

 

[alfa156]

In a set up as simple as this I usualy have the ser interface unnumbered against the ether interface as it is nice and simple.

interface serial0
ip unnumbered ethernet0 (on both routers)


ip classless
ip route 0.0.0.0 0.0.0.0 ser0 (on bopth routers)