Hello; We are an ISP trying to set up one of our customers with a Cisco 1603R, to connect to our Ascend Max 4000 using ISDN. The customer can connect fine with no problems when using a single channel PPP connection, but when we switch the connection to multilink, it appears to work to start with, but at the point when the connection would normally drop, the link goes dead - the line physically stays up, but no traffic passes between the Cisco and our Ascend, and the only solution is to power-cycle the Cisco. Some more information: the Ascend Max 4000 in question is running System 6.1.24, and the Cisco 1603R is running IOS 12.0. Here is a copy of the config of the Cisco :- ! version 12.0 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname GMILTD ! enable password xxxxxxxxxx ! username GMILTD password 0 xxxxxxxx ip subnet-zero isdn switch-type basic-net3 ! ! ! interface Ethernet0 ip address ip.of.the.cisco 255.255.255.248 no ip directed-broadcast ! interface BRI0 description ISDN connectivity ip unnumbered Ethernet0 no ip directed-broadcast encapsulation ppp ip tcp header-compression dialer idle-timeout 20 dialer map ip ip.of.the.ascend name GMILTD 95556667777 dialer-group 1 isdn switch-type basic-net3 no ppp lcp fast-start ppp authentication chap pap callin ppp chap hostname GMILTD ppp chap password 7 xxxxxxxxxxxxxx ppp pap sent-username GMILTD password 7 xxxxxxxxxxxxxx ! ip nat translation timeout never ip nat translation tcp-timeout never ip nat translation udp-timeout never ip nat translation finrst-timeout never ip nat translation syn-timeout never ip nat translation dns-timeout never ip nat translation icmp-timeout never ip classless ip route 0.0.0.0 0.0.0.0 ip.of.the.ascend ip route ip.of.the.ascend 255.255.255.255 BRI0 ! access-list 101 permit ip any any dialer-list 1 protocol ip list 101 ! line con 0 exec-timeout 5 0 password xxxxxxxxxx login transport input none line vty 0 4 exec-timeout 5 0 password xxxxxxxxxx login ! end If anybody has any ideas, I'd be most grateful ! Cheers; Kevin Drysdale, Colloquium Internet Technical Support. ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request at bungi.com To get FAQ'd: <http://www.nealis.net/ascend/faq>