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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6195&t=6195 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
