When I try to ping, the modem dials, and the async int comes up, etc.  So
everything seems to behave normally when I ping.  It just doesn't receive
any echo replies.

 I even debug ip packet on router B (the dial up server), and I see that
packets to yahoo are indeed being forwarded correctly.  So the modem is
working, the dialer-list is correct, the IP routing is working.  But
apparently replies never come back.  Weird, really weird.

Which is odd because I can ping www.yahoo.com from router B just fine.  And,
like I said, I can trace Yahoo from A with no problem.  I just cannot ping
yahoo from A.  But A can ping all interfaces of router B.

And yes, I have tried using IP addresses, without DNS names.  Same result.
I can do everything except ping from A.

By the way, I like the idea of "debug serial killer".   But of course, it
only works if you have previously typed the command "hostname charlesmanson"




""ElephantChild""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> On Tue, 29 May 2001, NRF wrote:
>
> > I got this weird situation here:
> >
> > I got router A that dials into router B through an analog modem (async
> > lines).  On both routers A and B, I am using dialer profiles with
> > rotary-groups.  B is also connected to the Internet, through E0 (to a
cable
> > modem), and I have properly set up NAT, so that E0 is the outside
interface
> > and the dialer interface is the inside interface.
> >
> > A can properly dial into B with no problem.  A has a static route
pointing
> > to its dialer interface.  A does not have any other routes (all other
> > interfaces have been shut, etc.)  So basically, A has to dial to B to
get
> > anywhere.  I have verified that dialing does indeed work properly.
> >
> > A cannot ping the outside world.  For example, if I ping www.yahoo.com I
> get
> > nothing.  But here's the really weird part.  Apparently, A can trace to
> > www.yahoo.com, with no problem.   I should also state that my
dialer-list
> is
> > this:
> >
> > dialer-list 1 protocol ip permit
> >
> > So, does anybody know why I can trace, but not ping?  Is there something
> > about Async interfaces or Dialer interfaces that causes thing weird
> behavior
> > to happen?
>
> Does anything happen at all when you ping a remote machine? Modem
> dialing, or trying to? Does the ping work after the traceroute causes A
> to dial into B?
>
> Look at the output of the following debug commands:
>
> debug serial packets
> debug serial events
> debug serial killer
> debug ip icmp
>
> You may also try using IP adresses instead of names, to factor out any
> possible side effect of the DNS requests.
>
> >  Check out this output:
> >
> > r1#trace www.yahoo.com
> > Translating "www.yahoo.com"...domain server (128.32.136.12) [OK]
> >
> > Type escape sequence to abort.
> > Tracing the route to www.yahoo.akadns.net (204.71.200.67)
> >
> >   1 50.50.50.50 40 msec 36 msec 36 msec
> >   2 24.250.141.1 52 msec 48 msec 48 msec
> >   3 r1-ge-3-0.pinol1.sfba.home.net (24.9.239.225) 52 msec 48 msec 52
msec
> >   4 r1-dpt-srp-5-0.oakland1.sfba.home.net (216.197.144.148) 52 msec 52
msec
> > 48 m
> > sec
> >   5 bb1-dpt-srp-1-0.rdc1.sfba.home.net (216.197.144.129) 56 msec 52 msec
53
> > msec
> >
> >   6 c2-pos5-1.snjsca1.home.net (24.7.76.181) 52 msec 52 msec 52 msec
> >   7 pos6-3.core1.SanJose1.Level3.net (209.245.146.129) 64 msec 56 msec
52
> > msec
> >   8 gigaethernet6-0.ipcolo1.SanJose1.Level3.net (209.244.13.42) 56 msec
56
> > msec
> > 52 msec
> >   9 POS11-0.ipcolo3.SanJose1.Level3.net (209.244.13.58) 52 msec 53 msec
52
> > msec
> >  10 cust-int.level3.net (64.152.69.18) 56 msec 56 msec 56 msec
> >  11 ge-1-2-0.msr2.pao.yahoo.com (216.115.100.154) 60 msec 52 msec 52
msec
> >  12 vl21.bas2.snv.yahoo.com (216.115.100.229) 53 msec 56 msec 56 msec
> >  13 www.yahoo.akadns.net (204.71.200.67) 52 msec 56 msec 52 msec
> > r1#ping 204.71.200.67
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 204.71.200.67, timeout is 2 seconds:
> > .....
> > Success rate is 0 percent (0/5)
> > r1#
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>
>
> --
> "Someone approached me and asked me to teach a javascript course. I was
> about to decline, saying that my complete ignorance of the subject made
> me unsuitable, then I thought again, that maybe it doesn't, as driving
> people away from it is a desirable outcome." --Me
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=6197&t=6197
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

Reply via email to