Re: can't connect to LAN

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Hi Saravan, 
     thanks for reply.
>On Sat, 10 Apr 2004, SaravanaKumar wrote:
> have u configured the ip address correctly.
> # ifconfig eth0 (displays the current ip of ur system.)
the output is 
Settings for eth0:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	Advertised auto-negotiation: Yes
	Speed: 100Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 32
	Transceiver: internal
	Auto-negotiation: on
	Supports Wake-on: pumbg
	Wake-on: d
	Current message level: 0xffffffff (-1)
	Link detected: yes
> What do u mean my connecting to lan? there wont be any network 
> neighbourhood icon in Linux. Try pinging your system with others in the 
> network.
it does not ping the messege is 
icmp destination host unreachable...

also I am giving some additional details of my system
please have a look at them.

output of lspci 
00:00.0 Host bridge: Intel Corp. 82845G/GL [Brookdale-G] Chipset Host Bridge (rev 01)
00:02.0 VGA compatible controller: Intel Corp. 82845G/GL [Brookdale-G] Chipset Integrated Graphics Device (rev 01)
00:1d.0 USB Controller: Intel Corp. 82801DB USB (Hub #1) (rev 01)
00:1d.1 USB Controller: Intel Corp. 82801DB USB (Hub #2) (rev 01)
00:1d.2 USB Controller: Intel Corp. 82801DB USB (Hub #3) (rev 01)
00:1d.7 USB Controller: Intel Corp. 82801DB USB EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corp. 82801DB ISA Bridge (LPC) (rev 01)
00:1f.1 IDE interface: Intel Corp. 82801DB ICH4 IDE (rev 01)
00:1f.3 SMBus: Intel Corp. 82801DB SMBus (rev 01)
00:1f.5 Multimedia audio controller: Intel Corp. 82801DB AC'97 Audio (rev 01)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

output of netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
172.31.65.0     0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     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         172.31.65.21    0.0.0.0         UG        0 0          0 eth0

> Also check if u have configured the firewall during setup. This 
is a 
> very common error i see with windows admins. do check it and configure 
> it properly or disable it(if ur not connected to internet).

output of iptables -L 
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
RH-Lokkit-0-50-INPUT  all  --  anywhere             anywhere           

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
RH-Lokkit-0-50-INPUT  all  --  anywhere             anywhere           

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

Chain RH-Lokkit-0-50-INPUT (2 references)
target     prot opt source               destination         
ACCEPT     udp  --  172.31.100.9         anywhere           udp spt:domain dpts:1025:65535 
ACCEPT     udp  --  172.31.100.8         anywhere           udp spt:domain dpts:1025:65535 
ACCEPT     udp  --  172.31.100.6         anywhere           udp spt:domain dpts:1025:65535 
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:smtp flags:SYN,RST,ACK/SYN 
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:http flags:SYN,RST,ACK/SYN 
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:ftp flags:SYN,RST,ACK/SYN 
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:ssh flags:SYN,RST,ACK/SYN 
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:telnet flags:SYN,RST,ACK/SYN 
ACCEPT     udp  --  anywhere             anywhere           udp spts:bootps:bootpc dpts:bootps:bootpc 
ACCEPT     udp  --  anywhere             anywhere           udp spts:bootps:bootpc dpts:bootps:bootpc 
ACCEPT     all  --  anywhere             anywhere           
ACCEPT     all  --  anywhere             anywhere           
REJECT     tcp  --  anywhere             anywhere           tcp dpts:0:1023 flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable 
REJECT     tcp  --  anywhere             anywhere           tcp dpt:nfs flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable 
REJECT     udp  --  anywhere             anywhere           udp dpts:0:1023 reject-with icmp-port-unreachable 
REJECT     udp  --  anywhere             anywhere           udp dpt:nfs reject-with icmp-port-unreachable 
REJECT     tcp  --  anywhere             anywhere           tcp dpts:x11:6009 flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable 
REJECT     tcp  --  anywhere             anywhere           tcp dpt:xfs flags:SYN,RST,ACK/SYN reject-with icmp-port-unreachable 

please suggest whats wrong. Is there something wrong with 
the installation. would reinstalltion help ??
bye,
shatam


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