On Saturday, May 14, 2011 10:46:51 AM JD wrote: > On 05/14/11 09:17, Rick Sewill wrote: > > On Saturday, May 14, 2011 09:27:55 AM JD wrote: > >> On 05/14/11 08:48, G.Wolfe Woodbury wrote: > >>> On 05/14/2011 09:36 AM, JD wrote: > >>>> On my F14, I am running a firewall that accepts specific connection on > >>>> specific ports from some machines on the LAN. > >>>> > >>>> However, for one machine I made a general rule to accept all > >>>> connections: > >>>> > >>>> -A INPUT -s 192.168.1.60 -j ACCEPT > >>>> > >>>> After restarting the firewall, > >>>> > >>>> I still am unable to ping that machine and it is unable to ping me. > >>>> That machine is not running a firewall. > >>>> > >>>> I can ping the router and another machine I have on the LAN. > >>>> The machine at 192.168.1.60 can do the same. > >>>> > >>>> What else do I need to do to be able to talk to machine 192.168.1.60 > >>>> and it to my fedora machine? > >>> > >>> Try: > >>> > >>> -A INPUT -s 192.168.1.60/32 -j ACCEPT > >>> > >>> there needs to be a netmask in the syntax. > >> > >> Tried it. > >> Did not change anything :( > > > > Could we see more of the network topology please? > > > > Can you do on both machines: > > /bin/netstat -rn > > On Fedora Machine: > # /bin/netstat -rn > Kernel IP routing table > Destination Gateway Genmask Flags MSS Window irtt > Iface > 10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 > wlan0 > 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 > virbr0 > 0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 0 > wlan0 > > > On the machine in question (192.168.1.60) > # /sbin/netstat -rn > Routing tables > > Internet: > Destination Gateway Flags Refs Use Netif Expire > default 192.168.1.254 UGSc 8 0 en1 > 127 127.0.0.1 UCS 0 0 lo0 > 127.0.0.1 127.0.0.1 UH 0 4 lo0 > 169.254 link#6 UCS 0 0 en1 > 192.168.1 link#6 UCS 2 0 en1 > 192.168.1.1 0:26:18:6:ef:7 UHLW 0 113 en1 566 > 192.168.1.60 127.0.0.1 UHS 0 0 lo0 > 192.168.1.254 0:1d:5a:c8:91:c1 UHLW 15 153 en1 565 > > Internet6: > Destination Gateway > Flags Netif Expire > > ::1 link#1 > > UHL lo0 > fe80::%lo0/64 fe80::1%lo0 > Uc lo0 > fe80::1%lo0 link#1 > UHL lo0 > ff01::/32 ::1 > U lo0 > ff02::/32 fe80::1%lo0 > UC lo0 > > > /sbin/ifconfig > > On Fedora machine: > > # /sbin/ifconfig > eth0 Link encap:Ethernet HWaddr 00:03:0D:15:2B:9E > inet addr:10.1.1.1 Bcast:10.1.1.255 Mask:255.255.255.0 > inet6 addr: fe80::203:dff:fe15:2b9e/64 Scope:Link > UP BROADCAST MULTICAST MTU:1500 Metric:1 > RX packets:1340 errors:0 dropped:0 overruns:0 frame:0 > TX packets:849 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:174589 (170.4 KiB) TX bytes:418153 (408.3 KiB) > Interrupt:19 Base address:0xd800 > > eth0:0 Link encap:Ethernet HWaddr 00:03:0D:15:2B:9E > inet addr:10.0.0.1 Bcast:10.0.0.255 Mask:255.255.255.0 > UP BROADCAST MULTICAST MTU:1500 Metric:1 > Interrupt:19 Base address:0xd800 > > 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:4734603 errors:0 dropped:0 overruns:0 frame:0 > TX packets:4734603 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:373719874 (356.4 MiB) TX bytes:373719874 (356.4 MiB) > > virbr0 Link encap:Ethernet HWaddr 22:3E:A6:BB:CD:51 > inet addr:192.168.122.1 Bcast:192.168.122.255 > Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:8391 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:0 (0.0 b) TX bytes:1617830 (1.5 MiB) > > wlan0 Link encap:Ethernet HWaddr 00:34:56:00:03:43 > inet6 addr: fe80::234:56ff:fe00:343/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:4976669 errors:0 dropped:0 overruns:0 frame:0 > TX packets:4947232 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:1062494718 (1013.2 MiB) TX bytes:500756007 (477.5 MiB) > > wlan0:0 Link encap:Ethernet HWaddr 00:34:56:00:03:43 > inet addr:192.168.1.108 Bcast:192.168.1.255 Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > On 192.168.1.60: > # /sbin/ifconfig > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 > inet 127.0.0.1 netmask 0xff000000 > inet6 ::1 prefixlen 128 > gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 > stf0: flags=0<> mtu 1280 > en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > ether 00:11:24:7e:2d:c8 > media: autoselect (none) status: inactive > supported media: none autoselect 10baseT/UTP <half-duplex> > 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,flow-control> > 10baseT/UTP <full-duplex,hw-loopback> 100baseTX <half-duplex> 100baseTX > <full-duplex> 100baseTX <full-duplex,flow-control> 100baseTX > <full-duplex,hw-loopback> 1000baseT <full-duplex> 1000baseT > <full-duplex,flow-control> 1000baseT <full-duplex,hw-loopback> > fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 4078 > lladdr 00:11:24:ff:fe:7e:2d:c8 > media: autoselect <full-duplex> status: inactive > supported media: autoselect <full-duplex> > en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 192.168.1.70 netmask 0xffffff00 broadcast 192.168.1.255 > ether 00:11:24:92:bc:e0 > media: autoselect status: active > supported media: autoselect > > > If you don't mind, it might be easiest to copy your filewall > > rules so we can see them. As root, > > /sbin/iptables -L -v > > Sorry. I cannot expose my FW settings to a public list because > they might contain weaknesses that someone could exploit. > > > If you are concerned with security and sharing your public IP address, > > may I suggest changing the public IP address ranges to something else, > > like xxx.xxx.xxx.0, yyy.yyy.yyy.0, etc, in the output. > > Actually, I have no public IP addresses in the rules. > > > Another question...if you have multiple ethernet devices, > > which device is 192.168.1.60 connected to? > > en1 (this is a Powerbook g4 running OS X 10.5.8). Both Fedora and the Powerbook can ping the default gateway, 192.168.254.1 ? The Powerbook entries confuse me. According to the Powerbook netstat -rn, I would expect an interface, 192.168.1.60/some mask When I look at the Powerbook ifconfig, I see en1: ... inet 192.168.1.70 netmask 0xffffff00 ... I expected this entry to read inet 192.168.1.60 netmask 0xffffff00 Can I suggest, for a test, change the iptables filters to allow any incoming packet from 192.168.1.0/24, and then, try to ping from the Powerbook. Also, you might wish to check the ARP table on Fedora to see what IP address/Mac address entries it knows about. As root, try /sbin/arp -a I am interested to know, after the attempted ping from the Powerbook, what IP address/Mac entry is found, if any, in the Fedora. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
