Laptop connects to a (wired) ethernet port on a DLINK DIR-625 wireless router using dhcp. All works perfectly.
Using the same laptop connecting to the same wireless router, but using the wireless adapter and dhcp instead of wired ethernet, I can ping IP addresses on the LAN and also WAN IP's to/from anywhere on the net. I can perform reverse name resolutions (ip to host name), but not forward lookups (host names to ip addresses). I can use the DNS server obtained from dhcp or specify, by ip address, a DNS server to perform the lookups. This makes no difference.
Web pages (LAN server pages or from the internet) are not accessible by site address name or by ip address specifically.
This one has me stumped. I'd very much appreciate any ideas.
-------------------------
Kubuntu 11.01
$ uname -r
2.6.38-10-generic
$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"DLINK-DIR-625"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1E:58:2E:EE:5F
Bit Rate=58.5 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementn
Link Quality=51/70 Signal level=-59 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:2 Missed beacon:0
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0b:db:d7:eb:c3
UP 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)
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:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:780 (780.0 B) TX bytes:780 (780.0 B)
wlan0 Link encap:Ethernet HWaddr c8:3a:35:cb:a7:88
inet addr:192.168.0.188 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::ca3a:35ff:fecb:a788/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:69 errors:0 dropped:0 overruns:0 frame:0
TX packets:104 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9852 (9.8 KB) TX bytes:16223 (16.2 KB)
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
$ cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.0.1
$ ping 74.125.91.99
PING 74.125.91.99 (74.125.91.99) 56(84) bytes of data.
64 bytes from 74.125.91.99: icmp_req=1 ttl=47 time=44.0 ms
64 bytes from 74.125.91.99: icmp_req=2 ttl=47 time=48.0 ms
64 bytes from 74.125.91.99: icmp_req=3 ttl=47 time=47.9 ms
64 bytes from 74.125.91.99: icmp_req=4 ttl=47 time=43.5 ms
64 bytes from 74.125.91.99: icmp_req=5 ttl=47 time=45.2 ms
64 bytes from 74.125.91.99: icmp_req=6 ttl=47 time=42.4 ms
^C
--- 74.125.91.99 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5006ms
rtt min/avg/max/mdev = 42.438/45.202/48.002/2.130 ms
$ ping www.google.com
ping: unknown host www.google.com
$ nslookup 74.125.91.99
Server: 192.168.0.1
Address: 192.168.0.1#53
Non-authoritative answer:
99.91.125.74.in-addr.arpa name = qy-in-f99.1e100.net.
Authoritative answers can be found from:
125.74.in-addr.arpa nameserver = NS2.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS1.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS4.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS3.GOOGLE.COM.
$ nslookup 74.125.91.99 192.168.1.3
Server: 192.168.1.3
Address: 192.168.1.3#53
Non-authoritative answer:
99.91.125.74.in-addr.arpa name = qy-in-f99.1e100.net.
Authoritative answers can be found from:
125.74.in-addr.arpa nameserver = NS3.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS4.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS2.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS1.GOOGLE.COM.
$ nslookup www.google.com 192.168.1.3
;; connection timed out; no servers could be reached
$ host www.google.com
;; connection timed out; no servers could be reached
$ host 74.125.91.99
99.91.125.74.in-addr.arpa domain name pointer qy-in-f99.1e100.net.
$ host localhost
localhost has address 127.0.0.1
localhost has IPv6 address ::1
$ dmesg
[ 28.458110] Intel ICH 0000:00:1f.5: PCI INT B -> Link[LNKB] -> GSI 5 (level, low) -> IRQ 5
[ 28.458161] Intel ICH 0000:00:1f.5: setting latency timer to 64
[ 28.787464] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 28.815019] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 29.292095] intel8x0_measure_ac97_clock: measured 55340 usecs (2666 samples)
[ 29.292102] intel8x0: clocking to 48000
[ 33.016949] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[ 36.215804] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[ 74.370991] wlan0: authenticate with 00:1e:58:2e:ee:5f (try 1)
[ 74.372596] wlan0: authenticated
[ 75.976219] wlan0: associate with 00:1e:58:2e:ee:5f (try 1)
[ 75.978720] wlan0: RX AssocResp from 00:1e:58:2e:ee:5f (capab=0x431 status=0 aid=2)
[ 75.978726] wlan0: associated
[ 75.986865] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 76.189583] Intel AES-NI instructions are not detected.
[ 76.233065] padlock_aes: VIA PadLock not detected.
[ 86.984030] wlan0: no IPv6 routers present
Using the same laptop connecting to the same wireless router, but using the wireless adapter and dhcp instead of wired ethernet, I can ping IP addresses on the LAN and also WAN IP's to/from anywhere on the net. I can perform reverse name resolutions (ip to host name), but not forward lookups (host names to ip addresses). I can use the DNS server obtained from dhcp or specify, by ip address, a DNS server to perform the lookups. This makes no difference.
Web pages (LAN server pages or from the internet) are not accessible by site address name or by ip address specifically.
This one has me stumped. I'd very much appreciate any ideas.
-------------------------
Kubuntu 11.01
$ uname -r
2.6.38-10-generic
$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"DLINK-DIR-625"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1E:58:2E:EE:5F
Bit Rate=58.5 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementn
Link Quality=51/70 Signal level=-59 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:2 Missed beacon:0
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0b:db:d7:eb:c3
UP 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)
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:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:780 (780.0 B) TX bytes:780 (780.0 B)
wlan0 Link encap:Ethernet HWaddr c8:3a:35:cb:a7:88
inet addr:192.168.0.188 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::ca3a:35ff:fecb:a788/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:69 errors:0 dropped:0 overruns:0 frame:0
TX packets:104 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9852 (9.8 KB) TX bytes:16223 (16.2 KB)
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
$ cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.0.1
$ ping 74.125.91.99
PING 74.125.91.99 (74.125.91.99) 56(84) bytes of data.
64 bytes from 74.125.91.99: icmp_req=1 ttl=47 time=44.0 ms
64 bytes from 74.125.91.99: icmp_req=2 ttl=47 time=48.0 ms
64 bytes from 74.125.91.99: icmp_req=3 ttl=47 time=47.9 ms
64 bytes from 74.125.91.99: icmp_req=4 ttl=47 time=43.5 ms
64 bytes from 74.125.91.99: icmp_req=5 ttl=47 time=45.2 ms
64 bytes from 74.125.91.99: icmp_req=6 ttl=47 time=42.4 ms
^C
--- 74.125.91.99 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5006ms
rtt min/avg/max/mdev = 42.438/45.202/48.002/2.130 ms
$ ping www.google.com
ping: unknown host www.google.com
$ nslookup 74.125.91.99
Server: 192.168.0.1
Address: 192.168.0.1#53
Non-authoritative answer:
99.91.125.74.in-addr.arpa name = qy-in-f99.1e100.net.
Authoritative answers can be found from:
125.74.in-addr.arpa nameserver = NS2.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS1.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS4.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS3.GOOGLE.COM.
$ nslookup 74.125.91.99 192.168.1.3
Server: 192.168.1.3
Address: 192.168.1.3#53
Non-authoritative answer:
99.91.125.74.in-addr.arpa name = qy-in-f99.1e100.net.
Authoritative answers can be found from:
125.74.in-addr.arpa nameserver = NS3.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS4.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS2.GOOGLE.COM.
125.74.in-addr.arpa nameserver = NS1.GOOGLE.COM.
$ nslookup www.google.com 192.168.1.3
;; connection timed out; no servers could be reached
$ host www.google.com
;; connection timed out; no servers could be reached
$ host 74.125.91.99
99.91.125.74.in-addr.arpa domain name pointer qy-in-f99.1e100.net.
$ host localhost
localhost has address 127.0.0.1
localhost has IPv6 address ::1
$ dmesg
[ 28.458110] Intel ICH 0000:00:1f.5: PCI INT B -> Link[LNKB] -> GSI 5 (level, low) -> IRQ 5
[ 28.458161] Intel ICH 0000:00:1f.5: setting latency timer to 64
[ 28.787464] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 28.815019] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 29.292095] intel8x0_measure_ac97_clock: measured 55340 usecs (2666 samples)
[ 29.292102] intel8x0: clocking to 48000
[ 33.016949] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[ 36.215804] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[ 74.370991] wlan0: authenticate with 00:1e:58:2e:ee:5f (try 1)
[ 74.372596] wlan0: authenticated
[ 75.976219] wlan0: associate with 00:1e:58:2e:ee:5f (try 1)
[ 75.978720] wlan0: RX AssocResp from 00:1e:58:2e:ee:5f (capab=0x431 status=0 aid=2)
[ 75.978726] wlan0: associated
[ 75.986865] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 76.189583] Intel AES-NI instructions are not detected.
[ 76.233065] padlock_aes: VIA PadLock not detected.
[ 86.984030] wlan0: no IPv6 routers present
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