Unable To Ping*

mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
in CCNA & CCENT
As stated above, i've already done all possible things to fix it but im still unable to ping for the last router which is "HQ". All of the pc/router are able to ping each other successfully. Now i'm left with the "HQ" router. it just cant ping to any of the router example (B1,B2,B3,B4) it just cant ping them all. I've done static route and i've set the clock rate but still unable to ping.

Need serious help ya


Mock Test Latest.pkt
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Comments

  • martell1000martell1000 Member Posts: 389
    seems linke your interfaces on HQ are not in the same subnet as all the other routers:
    HQ:

    Serial0/0 80.0.0.1 YES manual up up

    Serial0/1 80.0.1.1 YES manual up up

    Serial1/0 80.0.2.1 YES manual up up

    Serial1/1 80.0.3.1 YES manual up up
    R4:

    Serial0/0 80.80.80.10 YES manual up up

    Serial0/1 80.80.80.13 YES manual up up

    Serial1/0 80.80.80.18 YES manual up up
    And then, I started a blog ...
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  • mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
    martell1000 wrote: »
    seems linke your interfaces on HQ are not in the same subnet as all the other routers:

    Hmm i dont quite get what u actually meant.. so i should change to which one?
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  • CodeBloxCodeBlox Member Posts: 1,363 ■■■■□□□□□□
    I'm at work right now so I can't open your pkt file as I don't have packet tracer here but... Depending on your subnet masks and based on the post from martell1000, your R4 HQ interfaces may not be in the same subnet. Really looks like the subnetting may not be right.
    Currently reading: Network Warrior, Unix Network Programming by Richard Stevens
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  • martell1000martell1000 Member Posts: 389
    you set up /30 links within the range of 80.80.80.0 network on every router expect of the HQ router ...

    so for example interface s1/0 has an IP of 80.80.80.18 the other side of the link has an IP of 80.0.0.1 which is miles out of range.
    put them in the same subnet and it will work.

    on router HQ:

    Router(config)#interface serial 0/1
    Router(config-if)#ip address 80.80.80.17 255.255.255.252
    Router(config-if)#no shut
    Router(config-if)#do ping 80.80.80.18

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 80.80.80.18, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 3/14/57 ms
    And then, I started a blog ...
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  • martell1000martell1000 Member Posts: 389
    and you should enable a routing protocol on the routers or check your static routes if you want to have a fully coverged network...
    And then, I started a blog ...
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  • Ltat42aLtat42a Member Posts: 587 ■■■□□□□□□□
    Looked at your configs on HQ, B1, B2, B3, B4 -

    HQ
    S0/0 = 80.0.0.1/30 this connects to B3 - S1/0 = 80.80.80.2/30 INCORRECT SUBNET
    S0/1 = 80.0.1.1/30 this connects to B4 - S1/0 = 80.80.80.18/30 INCORRECT SUBNET
    S1/0 = 80.0.2.1/30 this connects to B1 - S1/0 = 80.80.80.17/30 INCORRECT SUBNET
    S1/1 = 80.0.3.1/30 this connects to B2 - S1/0 = 80.80.80.10/30 INCORRECT SUBNET

    B1
    S0/0 = 80.80.80.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!
    S0/1 = 80.80.80.14/30 this connects to B4 - S0/1 = 80.80.80.13/30 CORRECT!
    S1/0 = 80.80.80.17/30 this connects to HQ - S1/0 = 80.0.2.1/30 INCORRECT SUBNET


    B2
    S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.80.80.1/30 CORRECT!
    S0/1 = 80.80.80.5/30 this connects to B3 - S0/1 = 80.80.80.6/30 CORRECT!
    S1/0 = 80.80.80.10/30 this connects to HQ - S1/1 = 80.0.3.1/30 INCORRECT SUBNET

    B3
    S0/0 = 80.80.80.9/30 this connects to B4 - S0/0 = 80.80.80.10/30 CORRECT!
    S0/1 = 80.80.80.6/30 this connects to B2 - S0/1 = 80.80.80.5/30 CORRECT!
    S1/0 = 80.80.80.2/30 this connects to HQ - S0/0 = 80.0.0.1/30 INCORRECT SUBNET


    B4
    S0/0 = 80.80.80.10/30 this connects to B3 - S0/0 = 80.80.80.9/30 CORRECT!
    S0/1 = 80.80.80.13/30 this connects to B1 - S0/1 = 80.80.80.14/30 CORRECT!
    S1/0 = 80.80.80.18/30 this connects to HQ - S0/1 = 80.0.1.1/30 INCORRECT SUBNET

    Suggestion:
    B1 - Change S1/0 to 80.0.2.2/30
    B2 - Change S1/0 to 80.0.3.2/30
    B3 - Change S1/0 to 80.0.0.2/30
    B4 - Change S1/0 to 80.0.1.2/30
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  • Forsaken_GAForsaken_GA Member Posts: 4,024
    Ltat42a wrote: »
    B1
    S0/0 = 80.0.0.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!
    B2
    S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.0.0.1/30 CORRECT!

    You may want to look at these again.
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  • Ltat42aLtat42a Member Posts: 587 ■■■□□□□□□□
    Darn it LT.....Thanx, got-r-fixed:

    B1
    S0/0 = 80.80.80.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!

    B2
    S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.80.80.1/30 CORRECT!
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  • MAC_AddyMAC_Addy Member Posts: 1,740 ■■■■□□□□□□
    Ltat42a wrote: »
    Darn it LT.....Thanx, got-r-fixed:

    B1
    S0/0 = 80.80.80.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!

    B2
    S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.80.80.1/30 CORRECT!

    You're fired. :P just kidding.

    That should have him all fixed up now.
    2017 Certification Goals:
    CCNP R/S
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  • mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
    MAC_Addy wrote: »
    You're fired. :P just kidding.

    That should have him all fixed up now.

    Hmm alright i'll try that later on. Thank you guys for all your lovely help. thanks appreciated.
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  • mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
    martell1000 wrote: »
    you set up /30 links within the range of 80.80.80.0 network on every router expect of the HQ router ...

    so for example interface s1/0 has an IP of 80.80.80.18 the other side of the link has an IP of 80.0.0.1 which is miles out of range.
    put them in the same subnet and it will work.

    on router HQ:

    Hey friend, i've already did what you told me to do. I've change all the ip addresses in HQ and now everything can connect to each other. but now i've left with the R4.. R4 just couldn't ping to HQ any idea why ?

    R4 - 80.80.80.18/30
    HQ - 80.80.80.21/30 (Note: i use 80.80.80.21 here is because i couldn't change it to 80.80.80.17 it'll overlap. )
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  • martell1000martell1000 Member Posts: 389
    mindzfreak wrote: »
    Hey friend, i've already did what you told me to do. I've change all the ip addresses in HQ and now everything can connect to each other. but now i've left with the R4.. R4 just couldn't ping to HQ any idea why ?

    R4 - 80.80.80.18/30
    HQ - 80.80.80.21/30 (Note: i use 80.80.80.21 here is because i couldn't change it to 80.80.80.17 it'll overlap. )

    it is because .18 and .21 are not in the same subnet. the .18 /30 subnet is: .16 .17 .18 .19

    try to give them addresses which are in the same /30 subnet or create an /24 subnet just for testing (80.80.88.0 /24)
    And then, I started a blog ...
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  • mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
    martell1000 wrote: »
    it is because .18 and .21 are not in the same subnet. the .18 /30 subnet is: .16 .17 .18 .19

    try to give them addresses which are in the same /30 subnet or create an /24 subnet just for testing (80.80.88.0 /24)

    Alright now all routers can ping. but another problem pop up, i cant ping from pc to pc.. any idea why ? it says host unreachable..
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  • Ltat42aLtat42a Member Posts: 587 ■■■□□□□□□□
    Double check your static route statements, or configure a routing protocol on all routers.
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  • mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
    Ltat42a wrote: »
    Double check your static route statements, or configure a routing protocol on all routers.

    Yup checked. all have static routing in it ( Exit interface ). But it still doesn't allow me to ping from pc to pc icon_sad.gif any bright idea?

    here's the latest : Mock Test Latest.pkt
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  • Ltat42aLtat42a Member Posts: 587 ■■■□□□□□□□
    I noticed on the HQ router, all static routes are going out 1 interface - serial1/0, I changed them to:
    ip route 10.10.10.0 255.255.255.0 Serial1/0
    ip route 40.40.40.0 255.255.255.0 Serial0/1
    ip route 20.20.20.0 255.255.255.0 Serial1/1
    ip route 30.30.30.0 255.255.255.0 Serial0/0

    Pings from the PC's to the HQ router are now successful

    ..working on the others...stay tuned.
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  • mindzfreakmindzfreak Member Posts: 47 ■■□□□□□□□□
    Ltat42a wrote: »
    I noticed on the HQ router, all static routes are going out 1 interface - serial1/0, I changed them to:
    ip route 10.10.10.0 255.255.255.0 Serial1/0
    ip route 40.40.40.0 255.255.255.0 Serial0/1
    ip route 20.20.20.0 255.255.255.0 Serial1/1
    ip route 30.30.30.0 255.255.255.0 Serial0/0


    Pings from the PC's to the HQ router are now successful

    ..working on the others...stay tuned.

    Alright thanks dude
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  • Ltat42aLtat42a Member Posts: 587 ■■■□□□□□□□
    Here's what I did on all 5 routers, all PC-to-PC pings are successful -
    HQ
    ip classless
    ip route 10.10.10.0 255.255.255.0 Serial1/0
    ip route 40.40.40.0 255.255.255.0 Serial0/1
    ip route 20.20.20.0 255.255.255.0 Serial1/1
    ip route 30.30.30.0 255.255.255.0 Serial0/0


    B1
    ip classless
    ip route 20.20.20.0 255.255.255.0 Serial0/0
    ip route 80.80.80.0 255.255.255.252 Serial1/0
    ip route 40.40.40.0 255.255.255.0 Serial0/1
    ip route 30.30.30.0 255.255.255.0 Serial1/0


    B2
    ip classless
    ip route 30.30.30.0 255.255.255.0 Serial0/1
    ip route 80.80.80.0 255.255.255.252 Serial1/1
    ip route 10.10.10.0 255.255.255.0 Serial0/0
    ip route 40.40.40.0 255.255.255.0 Serial1/0


    B3
    ip classless
    ip route 80.80.80.0 255.255.255.252 Serial0/0
    ip route 40.40.40.0 255.255.255.0 Serial0/0
    ip route 20.20.20.0 255.255.255.0 Serial0/1
    ip route 10.10.10.0 255.255.255.0 Serial1/0


    B4
    ip classless
    ip route 30.30.30.0 255.255.255.0 Serial0/0
    ip route 10.10.10.0 255.255.255.0 Serial0/1
    ip route 80.80.80.0 255.255.255.252 Serial0/1
    ip route 20.20.20.0 255.255.255.0 Serial1/0

    http://www.mediafire.com/?gyukvlpd7wyns6c
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