The best way maybe could be to debug on the both side : (by doing a ping or telnet session) tcpdump -i ppp0 -vv on cisco side : (don't forget term mon) debug ppp error debug ppp negotiation show debug could you send us this debug information ? also the "sh ver" of the cisco. alx On Tue, 4 Dec 2001, Stephen Collier wrote: > I have the following setup > > > XXXXXXXXXppp0 XXXXXXXXXXXXX > X linux X----------------------------------X cisco 801 X > XXXXXXXXX192.168.40.1 192.168.40.2XXXXXXXXXXXXX > 192.168.1.164 192.168.5.1 > > The cisco dials into the linux box and the connection is very slow (for a > dialup). If I ping cisco to linux it gives a 30% packet loss but linux to > cisco gives no packet loss. Telnet linux to cisco is OK but telnet cisco to > linux is very slow. I suspect routing but I can't see any problems. The same > setup works perfectly on SCO 5.0.4 but I don't want to use it on that > server. > > routing is setup with ip-up.local on the linux box > > Linux is redhat 7.1 with kernel-2.4.2-2 ppp-2.4.0-2 mgetty-1.1.25-5 > > netstat -rn on linux > Kernel IP routing table > Destination Gateway Genmask Flags MSS Window irtt > Iface > 192.168.40.2 0.0.0.0 255.255.255.255 UH 40 0 0 > ppp0 > 192.168.5.0 192.168.40.2 255.255.255.0 UG 40 0 0 > ppp0 > 192.168.1.0 0.0.0.0 255.255.255.0 U 40 0 0 > eth0 > 127.0.0.0 0.0.0.0 255.0.0.0 U 40 0 0 lo > 0.0.0.0 192.168.1.1 0.0.0.0 UG 40 0 0 > eth0 > > show ip route on the cisco > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 > E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate > default > U - per-user static route, o - ODR, P - periodic downloaded static > route > T - traffic engineered route > > Gateway of last resort is 192.168.40.1 to network 0.0.0.0 > > 192.168.40.0/24 is variably subnetted, 2 subnets, 2 masks > C 192.168.40.0/29 is directly connected, Dialer1 > C 192.168.40.1/32 is directly connected, Dialer1 > C 192.168.5.0/24 is directly connected, Ethernet0 > S* 0.0.0.0/0 [1/0] via 192.168.40.1 > > Any suggestions as to where to start would be appreciated. I can provide > tcpdumps etc. > > Stephen Collier > Panavision Australia > > - > : send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Alexandre Dulaunoy adulau@conostix.com http://www.conostix.com/ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
