1. 'ping' sees route but 'telnet' doesn't??
Hi,
I'm connecting to one ISP (T-Online) via isdn/ipppd, which
seems to work fine. But when I try to go to my other ISP (where
my mail is) I get the seemingly contradictory result that I can
ping it just fine, but when I try to telnet to it, it says "no
route to host". I can think of no explanation for this (and
certainly no fix. Here's the evidence:
bison% traceroute 194.95.220.131
traceroute to 194.95.220.131 (194.95.220.131), 30 hops max, 40 byte packets
1 212.185.250.117 (212.185.250.117) 22 ms 20 ms 20 ms
2 193.158.137.206 (193.158.137.206) 20 ms 20 ms 20 ms
3 M-ag2.M.net.DTAG.DE (194.25.7.213) 30 ms 30 ms 30 ms
4 M-gw13.M.net.DTAG.DE (212.185.10.210) 30 ms 30 ms 30 ms
5 L-gw12.L.net.DTAG.DE (193.159.159.9) 30 ms 30 ms 30 ms
6 L-gw13.L.net.DTAG.DE (62.156.140.86) 30 ms 30 ms 30 ms
7 S-gw12.S.net.DTAG.DE (193.159.159.113) 40 ms 38 ms 40 ms
8 S-gw13.S.net.DTAG.DE (212.185.11.3) 40 ms 40 ms 40 ms
9 ir-stuttgart1.g-win.dfn.de (188.1.54.1) 40 ms 40 ms 40 ms
10 * * ir-stuttgart1.g-win.dfn.de (188.1.54.1) 32 ms !H
bison% ifconfig ippp1
ippp1 Link encap:Point-to-Point Protocol
inet addr:62.156.3.51 P-t-P:212.185.250.117 Mask:255.0.0.0
UP POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
RX packets:882 errors:0 dropped:0 overruns:0 frame:0
TX packets:941 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:30
bison% netstat -r
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
212.0.0.0 * 255.0.0.0 U 0 0 0 ippp1
default 212.185.250.117 0.0.0.0 UG 0 0 0 ippp1
bison% telnet 194.95.220.131
Trying 194.95.220.131...
telnet: connect to address 194.95.220.131: No route to host
bison%
I have a good default route (ping has no trouble). Is someone blocking
me (if so, why doesn't it say that.) Any plausible explanation would be
welcome, a solution for it would be fabulous :-)
Thanks - Ed
--
----------------------------------------------------------
2. "crypt" on SunOS 4.1.3
3. 'ppp-on' Works, 'ifup ppp0' Doesn't
4. ethenet packet tracing ??
5. D-link DE220 can PING his own IP, but can't PING others'
6. PBG3 modem problems
7. Apache's SSI doesn't work for virtural hosts' directories.
8. Solstice server on a sun.
9. pppd's ip-up doesn't work
10. nslookup works; telnet/ftp require IP #'s (can't process host names)
11. A minimal 'man' page for the 'ip' command
12. Compile the 'sock' program in the book 'TCP/IP Illustrated Vol.1'
13. Will changing IP address affect 'rlogin'/'telnet'?