Setting up network between two laptops

[jukzh]

Just hooked up them via wifi, they are pinging each other!
Remains to enable wan in client, server iptable rules:

Chain INPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     tcp  --  gjjline.bta.net.cn   anywhere            tcp flags:!FIN,SYN,RST,ACK/SYN 
ACCEPT     udp  --  gjjline.bta.net.cn   anywhere            
ACCEPT     tcp  --  dialdns.bta.net.cn   anywhere            tcp flags:!FIN,SYN,RST,ACK/SYN 
ACCEPT     udp  --  dialdns.bta.net.cn   anywhere            
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     icmp --  anywhere             anywhere            limit: avg 10/sec burst 5 
DROP       all  --  anywhere             255.255.255.255     
DROP       all  --  anywhere             localhost           
DROP       all  --  BASE-ADDRESS.MCAST.NET/8  anywhere            
DROP       all  --  anywhere             BASE-ADDRESS.MCAST.NET/8 
DROP       all  --  255.255.255.255      anywhere            
DROP       all  --  anywhere             0.0.0.0             
DROP       all  --  anywhere             anywhere            state INVALID 
LSI        all  -f  anywhere             anywhere            limit: avg 10/min burst 5 
INBOUND    all  --  anywhere             anywhere            
INBOUND    all  --  anywhere             localhost           
INBOUND    all  --  anywhere             localhost           
INBOUND    all  --  anywhere             localhost           
LOG_FILTER  all  --  anywhere             anywhere            
LOG        all  --  anywhere             anywhere            LOG level info prefix `Unknown Input' 

Chain FORWARD (policy DROP)
target     prot opt source               destination         
ACCEPT     icmp --  anywhere             anywhere            limit: avg 10/sec burst 5 
TCPMSS     tcp  --  anywhere             anywhere            tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU 
OUTBOUND   all  --  anywhere             anywhere            
ACCEPT     tcp  --  anywhere             localhost/24        state RELATED,ESTABLISHED 
ACCEPT     udp  --  anywhere             localhost/24        state RELATED,ESTABLISHED 
LOG_FILTER  all  --  anywhere             anywhere            
LOG        all  --  anywhere             anywhere            LOG level info prefix `Unknown Forward' 
ACCEPT     all  --  localhost/24         anywhere            ctstate NEW 
ACCEPT     all  --  anywhere             anywhere            ctstate RELATED,ESTABLISHED 

Chain OUTPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     tcp  --  localhost            gjjline.bta.net.cn  tcp dpt:domain 
ACCEPT     udp  --  localhost            gjjline.bta.net.cn  udp dpt:domain 
ACCEPT     tcp  --  localhost            dialdns.bta.net.cn  tcp dpt:domain 
ACCEPT     udp  --  localhost            dialdns.bta.net.cn  udp dpt:domain 
ACCEPT     all  --  anywhere             anywhere            
DROP       all  --  BASE-ADDRESS.MCAST.NET/8  anywhere            
DROP       all  --  anywhere             BASE-ADDRESS.MCAST.NET/8 
DROP       all  --  255.255.255.255      anywhere            
DROP       all  --  anywhere             0.0.0.0             
DROP       all  --  anywhere             anywhere            state INVALID 
OUTBOUND   all  --  anywhere             anywhere            
OUTBOUND   all  --  anywhere             anywhere            
LOG_FILTER  all  --  anywhere             anywhere            
LOG        all  --  anywhere             anywhere            LOG level info prefix `Unknown Output' 

Chain INBOUND (4 references)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     udp  --  anywhere             anywhere            state RELATED,ESTABLISHED 
LSI        all  --  anywhere             anywhere            

Chain LOG_FILTER (5 references)
target     prot opt source               destination         

Chain LSI (2 references)
target     prot opt source               destination         
LOG_FILTER  all  --  anywhere             anywhere            
LOG        tcp  --  anywhere             anywhere            tcp flags:FIN,SYN,RST,ACK/SYN limit: avg 1/sec burst 5 LOG level info prefix `Inbound ' 
DROP       tcp  --  anywhere             anywhere            tcp flags:FIN,SYN,RST,ACK/SYN 
LOG        tcp  --  anywhere             anywhere            tcp flags:FIN,SYN,RST,ACK/RST limit: avg 1/sec burst 5 LOG level info prefix `Inbound ' 
DROP       tcp  --  anywhere             anywhere            tcp flags:FIN,SYN,RST,ACK/RST 
LOG        icmp --  anywhere             anywhere            icmp echo-request limit: avg 1/sec burst 5 LOG level info prefix `Inbound ' 
DROP       icmp --  anywhere             anywhere            icmp echo-request 
LOG        all  --  anywhere             anywhere            limit: avg 5/sec burst 5 LOG level info prefix `Inbound ' 
DROP       all  --  anywhere             anywhere            

Chain LSO (0 references)
target     prot opt source               destination         
LOG_FILTER  all  --  anywhere             anywhere            
LOG        all  --  anywhere             anywhere            limit: avg 5/sec burst 5 LOG level info prefix `Outbound ' 
REJECT     all  --  anywhere             anywhere            reject-with icmp-port-unreachable 

Chain OUTBOUND (3 references)
target     prot opt source               destination         
ACCEPT     icmp --  anywhere             anywhere            
ACCEPT     tcp  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     udp  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     all  --  anywhere             anywhere

And in resolv.conf of client I added google's DNS 8.8.8.8
Help me, anyone!

[jukzh]

Easy Wireless Ad-hoc:
http://www.ubuntugeek.com/creating-a...th-ubuntu.html
Why routers when Ubuntu, at home?