I was recently at a hotel where I had trouble getting OpenSolaris
snv_117 with nwam to connect to the hotel network. I monitored the
ath0 interface with wireshark and found that the hotel's DHCP
server assigned address 192.168.7.216 with subnet mask
255.255.255.255 to my node. The router's address was 192.168.4.1.
I manually reconfigured my subnet mask to 255.255.252.0 to get
connectivity. I understand a better way to handle this would be
to manually define a host route to 192.168.4.1 through the
interface.
Should Solaris support automatically configuring to a network
that works this way?
I've included the DHCP ACK from my wireshark log below.
Ken
Frame 52 (342 bytes on wire, 342 bytes captured)
Ethernet II, Src: Internet_bd:f9:9d (00:e0:4d:bd:f9:9d), Dst:
WistronN_4d:b2:8c (00:0b:6b:4d:b2:8c)
Destination: WistronN_4d:b2:8c (00:0b:6b:4d:b2:8c)
Source: Internet_bd:f9:9d (00:e0:4d:bd:f9:9d)
Type: IP (0x0800)
Internet Protocol, Src: 192.168.4.1 (192.168.4.1), Dst: 192.168.7.216
(192.168.7.216)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN:
0x00)
Total Length: 328
Identification: 0x0000 (0)
Flags: 0x00
Fragment offset: 0
Time to live: 16
Protocol: UDP (0x11)
Header checksum: 0x1c6c [correct]
Source: 192.168.4.1 (192.168.4.1)
Destination: 192.168.7.216 (192.168.7.216)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
Source port: bootps (67)
Destination port: bootpc (68)
Length: 308
Checksum: 0x97a7 [correct]
Bootstrap Protocol
Message type: Boot Reply (2)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0x0d3492ec
Seconds elapsed: 4
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 192.168.7.216 (192.168.7.216)
Next server IP address: 192.168.4.1 (192.168.4.1)
Relay agent IP address: 0.0.0.0 (0.0.0.0)
Client MAC address: WistronN_4d:b2:8c (00:0b:6b:4d:b2:8c)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP ACK
Option: (t=54,l=4) Server Identifier = 192.168.4.1
Option: (t=51,l=4) IP Address Lease Time = 1 day
Option: (t=1,l=4) Subnet Mask = 255.255.255.255
Option: (t=3,l=4) Router = 192.168.4.1
Option: (t=6,l=4) Domain Name Server = 192.168.4.1
End Option
Padding
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