Hi all, I solved the problem about ppp negotiation on the previous thread now a strange thing happened. The configs are below.
host A--newyork-----albany---host B 10.1.3.2 10.1.1.2 Everything works fine ppp authentication and connection from aux. But while they were connected from aux if I tried to ping from host A to host B I can not ping B. But newyork router can ping Host B. I got crazy and changed my configs so many times and I find out that if I add the command dialer string 125 to Albany router bingo, I can ping host B from host A but if I don't add the command I cannot ping host b from host A. And also if I delete all the dialer commands froms albany routers config, again I can ping host B from Host A. As I know Dialer on demand shouldnt block the pings. Because with or without the dialer commands the show ip route command is same for Albany. Why is it happening? Any idea? Best regards, newyork#sh run Building configuration... Current configuration : 1368 bytes ! version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname newyork ! ! username albany password 0 cisco ! ! ! ! memory-size iomem 25 ip subnet-zero ! chat-script backup "" "atdt\T" TIMEOUT 60 CONNECT \c ! interface Loopback0 ip address 192.168.3.1 255.255.255.255 ! interface Serial0 no ip address encapsulation frame-relay no fair-queue ! interface Serial0.1 point-to-point ip address 192.168.1.3 255.255.255.0 frame-relay interface-dlci 16 ! interface Serial1 no ip address shutdown ! interface FastEthernet0 ip address 10.1.3.1 255.255.255.0 speed auto ! interface Async5 ip unnumbered Loopback0 encapsulation ppp dialer in-band dialer idle-timeout 3600 dialer fast-idle 10 dialer enable-timeout 10 dialer string 250 dialer-group 1 async mode dedicated no peer default ip address ppp authentication chap callin ! ip classless ip route 10.1.1.0 255.255.255.255 Async5 no ip http server ! dialer-list 1 protocol ip permit ! line con 0 line aux 0 exec-timeout 0 0 script dialer backup modem InOut transport input all stopbits 1 speed 38400 flowcontrol hardware line vty 0 4 login ! no scheduler allocate end here is the config for albany router albany#sh run Building configuration... Current configuration : 1031 bytes ! version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname albany ! username newyork password 0 cisco ! ! ! ! memory-size iomem 25 ip subnet-zero no ip domain-lookup ! ! ! voice-port 2/0 ! voice-port 2/1 ! ! ! ! interface Loopback0 ip address 192.168.2.1 255.255.255.255 ! interface Serial0 no ip address encapsulation frame-relay ! interface Serial0.1 multipoint ip address 192.168.1.1 255.255.255.0 frame-relay interface-dlci 16 ! interface FastEthernet0 ip address 10.1.1.1 255.255.255.0 speed auto ! interface Async5 ip unnumbered Loopback0 encapsulation ppp dialer in-band dialer-group 1 async mode dedicated no peer default ip address ppp authentication chap ! ip classless ip route 10.1.3.0 255.255.255.0 Async5 no ip http server ! dialer-list 1 protocol ip permit ! line con 0 line aux 0 modem InOut transport input all stopbits 1 speed 38400 flowcontrol hardware line vty 0 4 login ! end Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=31139&t=31139 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]