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Old 11-03-2005, 05:22 PM   #1
dolvmin
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Registered: Jul 2003
Location: Florida
Distribution: Red Hat 7.2/8/9, Fedora Core 1/2/3, Smoothwall, Mandrake 7.0/10, Vecter 4, Arch 0.6, EnGuarde
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IP Table Currupt???

I think I did something bad with my IPTables. Everything looks fine physically, TCP/IP settings appear fine on both sides and internal drivers are A'OK!, yet I can not reach the gateway to which the NIC (eth0) physically connects to. Ping results in "host not found". Yet, services which associate to the IP address associated with the NIC (focus of problem(eth0)) work fine (e.g. Connecting to my server through ra0 (wireless) and using a browser on the local machine allows me to see the hosted webpage if I type the address of the NIC (focus of problem(eth0)).

eth0 - > internet (Not working)
eth1 - disabled
ra0 < - > LAN Wireless

Linux distribution: Mandrake 10.1
If logs/scripts are needed (which I believe they will be) I need to know what logs they are and I will post them on request. I really need help! I'm on the edge of success and it's very annoying to see this one last door not open.

FYI, History lesson: I been working hard on getting my wireless NIC installed and working. I have one that uses the rt2500 drivers. The built in RPM for mandrake does not work, so I had to compile it manually. This in turn caused problems with ICS, since it resets everything on the wireless side on every boot. Thus, I had to create two scripts (one for wireless, one for dhcpd) to get it working on boot. Now everything seems working but the damn NIC. I believe, that if eth0 works, I can access webpages from machines connecting from the ra0. I been working just about a full 24hours on this (I got sleep, don't worry). I really want this fixed before 12PM EST. It's my personal goal. Thanks.
 
Old 11-03-2005, 05:54 PM   #2
dolvmin
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Location: Florida
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Kernel IP Routing table has this result

192.168.100.0 * 255.255.255.0 U 0 0 0 ra0
192.168.10.0 * 255.255.255.0 U 0 0 0 eth0
default 192.168.10.1 0.0.0.0 UG 0 0 0 eth0

Something that bothers me is when I type in "route" the first two lines print out right away. But the last line does not print for over 10 seconds.
 
Old 11-03-2005, 07:35 PM   #3
dolvmin
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Registered: Jul 2003
Location: Florida
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Okay, I got more details now. Here it is:

Results from "ifconfig -a":
Code:
eth0      Link encap:Ethernet  HWaddr 00:80:AD:80:09:F8
          inet addr:192.168.10.100  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::280:adff:fe80:9f8/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:269 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:11 Base address:0xa400

eth1      Link encap:Ethernet  HWaddr 00:80:AD:76:41:D1
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:3 Base address:0xa000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2026 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2026 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:132141 (129.0 Kb)  TX bytes:132141 (129.0 Kb)

ra0       Link encap:Ethernet  HWaddr 00:09:F3:71:FE:31
          inet addr:192.168.100.0  Bcast:192.168.100.255  Mask:255.255.255.0
          inet6 addr: fe80::209:f3ff:fe71:fe31/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:323 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4686 errors:4 dropped:4 overruns:0 carrier:0
          collisions:4 txqueuelen:1000
          RX bytes:34166 (33.3 Kb)  TX bytes:285379 (278.6 Kb)
          Interrupt:3 Base address:0x3000

sit0      Link encap:IPv6-in-IPv4
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

Results from "route -FC":
Code:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.100.0   *               255.255.255.0   U     0      0        0 ra0
192.168.10.0    *               255.255.255.0   U     0      0        0 eth0
default         192.168.10.1    0.0.0.0         UG    0      0        0 eth0
Kernel IP routing cache
Source          Destination     Gateway         Flags Metric Ref    Use Iface
*               255.255.255.255 255.255.255.255 bl    0      0        1 lo
192.168.10.100  192.168.10.100  192.168.10.100  l     0      205     366 lo
192.168.100.12  192.168.100.0   192.168.100.0   il    0      0      192 lo
192.168.10.100  24.95.227.37    192.168.10.1          0      0       19 eth0
agdse           agdse           agdse           l     0      0        0 lo
192.168.10.100  24.95.227.39    192.168.10.1          0      0       18 eth0
192.168.100.0   192.168.100.255 192.168.100.255 bl    0      0        1 ra0

Results from "tables -L":
Code:
Chain INPUT (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere
DROP      !icmp --  anywhere             anywhere            state INVALID
eth0_in    all  --  anywhere             anywhere
eth1_in    all  --  anywhere             anywhere
ra0_in     all  --  anywhere             anywhere
Reject     all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere            LOG level info prefix `Shorewall:INPUT:REJECT:'
reject     all  --  anywhere             anywhere

Chain FORWARD (policy DROP)
target     prot opt source               destination
DROP      !icmp --  anywhere             anywhere            state INVALID
eth0_fwd   all  --  anywhere             anywhere
eth1_fwd   all  --  anywhere             anywhere
ra0_fwd    all  --  anywhere             anywhere
Reject     all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere            LOG level info prefix `Shorewall:FORWARD:REJECT:'
reject     all  --  anywhere             anywhere

Chain OUTPUT (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere
DROP      !icmp --  anywhere             anywhere            state INVALID
fw2net     all  --  anywhere             anywhere
fw2loc     all  --  anywhere             anywhere
fw2loc     all  --  anywhere             anywhere
Reject     all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere            LOG level info prefix `Shorewall:OUTPUT:REJECT:'
reject     all  --  anywhere             anywhere

Chain Drop (1 references)
target     prot opt source               destination
RejectAuth  all  --  anywhere             anywhere
dropBcast  all  --  anywhere             anywhere
dropInvalid  all  --  anywhere             anywhere
DropSMB    all  --  anywhere             anywhere
DropUPnP   all  --  anywhere             anywhere
dropNotSyn  all  --  anywhere             anywhere
DropDNSrep  all  --  anywhere             anywhere

Chain DropDNSrep (2 references)
target     prot opt source               destination
DROP       udp  --  anywhere             anywhere            udp spt:domain

Chain DropSMB (1 references)
target     prot opt source               destination
DROP       udp  --  anywhere             anywhere            udp dpt:135
DROP       udp  --  anywhere             anywhere            udp dpts:netbios-ns:netbios-ssn
DROP       udp  --  anywhere             anywhere            udp dpt:microsoft-ds
DROP       tcp  --  anywhere             anywhere            tcp dpt:135
DROP       tcp  --  anywhere             anywhere            tcp dpt:netbios-ssn
DROP       tcp  --  anywhere             anywhere            tcp dpt:microsoft-ds

Chain DropUPnP (2 references)
target     prot opt source               destination
DROP       udp  --  anywhere             anywhere            udp dpt:1900

Chain Reject (4 references)
target     prot opt source               destination
RejectAuth  all  --  anywhere             anywhere
dropBcast  all  --  anywhere             anywhere
dropInvalid  all  --  anywhere             anywhere
RejectSMB  all  --  anywhere             anywhere
DropUPnP   all  --  anywhere             anywhere
dropNotSyn  all  --  anywhere             anywhere
DropDNSrep  all  --  anywhere             anywhere

Chain RejectAuth (2 references)
target     prot opt source               destination
reject     tcp  --  anywhere             anywhere            tcp dpt:auth

Chain RejectSMB (1 references)
target     prot opt source               destination
reject     udp  --  anywhere             anywhere            udp dpt:135
reject     udp  --  anywhere             anywhere            udp dpts:netbios-ns:netbios-ssn
reject     udp  --  anywhere             anywhere            udp dpt:microsoft-ds
reject     tcp  --  anywhere             anywhere            tcp dpt:135
reject     tcp  --  anywhere             anywhere            tcp dpt:netbios-ssn
reject     tcp  --  anywhere             anywhere            tcp dpt:microsoft-ds

Chain all2all (1 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
Reject     all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere            LOG level info prefix `Shorewall:all2all:REJECT:'
reject     all  --  anywhere             anywhere

Chain dropBcast (2 references)
target     prot opt source               destination
DROP       all  --  anywhere             anywhere            PKTTYPE = broadcast
DROP       all  --  anywhere             anywhere            PKTTYPE = multicast

Chain dropInvalid (2 references)
target     prot opt source               destination
DROP       all  --  anywhere             anywhere            state INVALID

Chain dropNotSyn (2 references)
target     prot opt source               destination
DROP       tcp  --  anywhere             anywhere            tcp flags:!SYN,RST,ACK/SYN

Chain dynamic (6 references)
target     prot opt source               destination

Chain eth0_fwd (1 references)
target     prot opt source               destination
dynamic    all  --  anywhere             anywhere            state INVALID,NEW
net2all    all  --  anywhere             anywhere
net2all    all  --  anywhere             anywhere

Chain eth0_in (1 references)
target     prot opt source               destination
dynamic    all  --  anywhere             anywhere            state INVALID,NEW
net2fw     all  --  anywhere             anywhere

Chain eth1_fwd (1 references)
target     prot opt source               destination
dynamic    all  --  anywhere             anywhere            state INVALID,NEW
loc2net    all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere

Chain eth1_in (1 references)
target     prot opt source               destination
dynamic    all  --  anywhere             anywhere            state INVALID,NEW
loc2fw     all  --  anywhere             anywhere

Chain fw2loc (2 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere

Chain fw2net (1 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:http
ACCEPT     all  --  anywhere             anywhere

Chain icmpdef (0 references)
target     prot opt source               destination

Chain loc2fw (2 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere            multiport dports http,https,ssh,ftp-data,ftp
ACCEPT     icmp --  anywhere             anywhere            icmp echo-request
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:squid
all2all    all  --  anywhere             anywhere

Chain loc2net (2 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere

Chain net2all (3 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
Drop       all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere            LOG level info prefix `Shorewall:net2all:DROP:'
DROP       all  --  anywhere             anywhere

Chain net2fw (1 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere            multiport dports http,https,ssh,ftp-data,ftp
ACCEPT     icmp --  anywhere             anywhere            icmp echo-request
net2all    all  --  anywhere             anywhere

Chain ra0_fwd (1 references)
target     prot opt source               destination
dynamic    all  --  anywhere             anywhere            state INVALID,NEW
loc2net    all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere

Chain ra0_in (1 references)
target     prot opt source               destination
dynamic    all  --  anywhere             anywhere            state INVALID,NEW
loc2fw     all  --  anywhere             anywhere

Chain reject (11 references)
target     prot opt source               destination
DROP       all  --  anywhere             anywhere            PKTTYPE = broadcast
DROP       all  --  anywhere             anywhere            PKTTYPE = multicast
DROP       all  --  192.168.10.255       anywhere
DROP       all  --  192.168.100.255      anywhere
DROP       all  --  255.255.255.255      anywhere
DROP       all  --  224.0.0.0/4          anywhere
REJECT     tcp  --  anywhere             anywhere            reject-with tcp-reset
REJECT     udp  --  anywhere             anywhere            reject-with icmp-port-unreachable
REJECT     icmp --  anywhere             anywhere            reject-with icmp-host-unreachable
REJECT     all  --  anywhere             anywhere            reject-with icmp-host-prohibited

Chain shorewall (0 references)
target     prot opt source               destination

Chain smurfs (0 references)
target     prot opt source               destination
LOG        all  --  192.168.10.255       anywhere            LOG level info prefix `Shorewall:smurfs:DROP:'
DROP       all  --  192.168.10.255       anywhere
LOG        all  --  192.168.100.255      anywhere            LOG level info prefix `Shorewall:smurfs:DROP:'
DROP       all  --  192.168.100.255      anywhere
LOG        all  --  255.255.255.255      anywhere            LOG level info prefix `Shorewall:smurfs:DROP:'
DROP       all  --  255.255.255.255      anywhere
LOG        all  --  224.0.0.0/4          anywhere            LOG level info prefix `Shorewall:smurfs:DROP:'
DROP       all  --  224.0.0.0/4          anywhere
Please help me figure this out... I know the gateway is working fine, as I am making a post with a laptop through the very same connection this server is failing to see.
 
Old 11-03-2005, 08:57 PM   #4
dolvmin
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Registered: Jul 2003
Location: Florida
Distribution: Red Hat 7.2/8/9, Fedora Core 1/2/3, Smoothwall, Mandrake 7.0/10, Vecter 4, Arch 0.6, EnGuarde
Posts: 289

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Rep: Reputation: 30
Problem fixed... This message is proof of it, as I am applying it from my laptop, through mandrake, through gateway, to internet. Thanks for those who were looking into it.
 
  


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