Hi Minh,
You cannot use ping to test an "ip unnumbered" interface, since the
interface does not
have an IP address. See the following URL (and watch the line wrap):
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcprt1/1cfipadr.htm#1001113
If pinging is needed why not assign IP addresses to the two ends of a the
serial link?
As long as you do not plan to advertise the serial interface IP addresses
via some
routing protocol (RIP, OSPF, etc.) you could assign 192.168.1.1
255.255.255.252 to CS
and 192.168.1.2 255.255.255.252 to RO and ping away. Since this is a hub and
spoke
topology, use static routes if necessary.
---
Jonathan Hays
Minh Vu wrote:
> hello all
>
> I tried to solve problem from my office (to save a trip). I got the Dialer
> up/up and Async up/up at CS site but I couldn't ping from CS to remote
> office.
>
> CS------RO (CS = Access Server 2511, RO = Remote office 2509)
>
> show interface on Dialer1 @ CS, it display :
> Dialer1 is up (spoofing), line protocol is up (spoofing)
>
> show int as1 @CS
> Async1 is up (spoofing), line protocol is up (spoofing)
> LCP open
> Close: CDPCP
> Open: IPCP
>
> Look at the CDPCP it still Close, what is that for? how can I get it Open.
>
> Any hint?
>
> here is config in CS
> interface Ethernet0
> ip address xxx.xxx.95.2 255.255.255.255.192
>
> interface Async1
> ip unnumbered Ethernet 0
> encapsulation ppp
> async mode dedicated
> peer default ip address xxx.xxx.96.65
> dialer in-band
> dialer rotary-group 1
> dialer-group 1
>
> interface Dialer1
> ip unnumbered Ethernet 0
> encapsulation ppp
> dialer in-band
> dialer idle-timeout 3600
> dialer map ip xxx.xxx.96.65 modem-script dial 7777777
> dialer-group 1
>
> access-list 101 permit ip any any
> dialer-list 1 protocol ip list 101
> passive-interface Dialer1
>
> ip route xxx.xxx.96.64 255.255.255.240 xxx.xxx.96.65
> ip route xxx.xxx.96.65 255.255.255.255 Dialer1
>
> ===============
> here is config at RO site
>
> interface Ethernet0
> ip address xxx.xxx.96.65 255.255.255.240
>
> interface Async1
> ip unnumbered Ethernet0
> encapsulation ppp
> async mode dedicated
> peer default ip address xxx.xxx.95.2
> dialer in-band
> dialer rotary-group 1
> dialer-group 1
>
> interface Dialer1
> ip unnumbered Ethernet0
> encapsulation ppp
> dialer in-band
> dialer idle-timeout 3600
> dialer map ip xxx.xxx.95.2 modem-script dialer 8888888
> dialer-group 1
>
> ip route xxx.xxx.0.0 255.255.0.0 164.226.95.2
> ip route xxx.xxx.95.2 255.255.255.255 Dialer1
>
> access-list 101 permit ip any any
> dialer-list 1 protocol ip list 101
>
> ==========
> Note: there are other dialer/async interface currently working in CS with
> other RO. So I think there isn't problem in CS site.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=11567&t=11523
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