net pblms

[gaf at blu.org (Jerry Feldman)]

I run a very similar setup using a Linksys BEFSR41. 
First, the RT314 is a 4 port switch, so communications between the systems 
cabled to the switch have nothing to do externally, so it comes down to 
configuration of the systems themselves.
On you telnet problem, check /etc/inetd.conf to make sure that telnet is 
allowed.

I am wondering if your double entry in your routing table may be indicative 
of a problem. Not sure:
Mine looks like this:
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt 
Iface
192.168.0.0     0.0.0.0         255.255.255.0   U         0 0          0 
eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0 lo
0.0.0.0         192.168.0.1     0.0.0.0         UG        0 0          0 
eth0

"dan moylan" wrote:

> i have two machines running through a netgear rt-314 cable router,
> to a us robotics cmx cable modem, to rcn cable.  both machines run
> rh6.2, in very similar, though obviously not identical setups.
> 
> problem 1: pinging between the local stuff is ok at 1ms or so.
>            pinging remote stuff looks ok at 10-15ms or so on machine 2
>            but from machine 1, the pinging times go up in arithmetic
>            progression.  e.g.:
> 
> PING 207.172.3.8 (207.172.3.8) from 192.168.0.3 : 56(84) bytes of data.
> 64 bytes from ns1.dns.rcn.net (207.172.3.8): icmp_seq=0 ttl=252 time=11.6 ms
> 64 bytes from ns1.dns.rcn.net (207.172.3.8): icmp_seq=1 ttl=252 time=5022.1 m
> s
> 64 bytes from ns1.dns.rcn.net (207.172.3.8): icmp_seq=2 ttl=252 time=10023.1 
> ms
> 64 bytes from ns1.dns.rcn.net (207.172.3.8): icmp_seq=3 ttl=252 time=15022.8 
> ms
> 64 bytes from ns1.dns.rcn.net (207.172.3.8): icmp_seq=4 ttl=252 time=20019.5 
> ms
> 64 bytes from ns1.dns.rcn.net (207.172.3.8): icmp_seq=5 ttl=252 time=25023.2 
> ms
> 
> --- 207.172.3.8 ping statistics ---
> 37 packets transmitted, 7 packets received, 81% packet loss
> round-trip min/avg/max = 11.6/15020.4/30020.9 ms
> 
> problem 2: machine 1 can telnet to machine 2 ok, but telnetting to machine
>            1 from machine 2 produces error:
> 
> Trying 192.168.0.3
> telnet: Unable to connect to remote host: Connection refused
> 
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt Ifac
> e
> 192.168.0.0     *               255.255.255.0   U         0 0          0 eth0
> 192.168.0.0     *               255.255.255.0   U         0 0          0 eth0
> 127.0.0.0       *               255.0.0.0       U         0 0          0 lo
> default         netgear.moylan. 0.0.0.0         UG        0 0          0 eth0
> 
> hosts, .xhosts, .rhosts all identical, and include both machines
> 
> any ideas as to what is different (i.e. screwed up)?
> 
> tia,
> 
> dan
> --_----------=_97061219639440--
> 
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-- 
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix user group
http://www.blu.org


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