[Samba] samba 3.0.7 and os/2

[James Moe]

Hello,
   samba v3.0.7 on suse linux v9.1
   os/2 v4.x
   I have started the process of replacing our os/2 hosts with linux, 
starting with the server(s). Most of the problems have been firewall 
related, a topic only briefly discussed in the docs (nudge).
   Some of the hosts can now interact with the linux samba shares; not all 
though. I have run ip traces and have gotten to a point that is a bit 
mysterious.
   When the firewall is stopped, all of the os/2 hosts can use the linux 
server. When the firewall is up, ARP information for some hosts is blocked.
   I obviously suspect a firewall problem: firewall down, it works; 
firewall up, no work. Does a firewall normally mess with arp?
   Any ideas about what may be actually happening here?

====[ working exchange (firewall down) ]====
23:08:16.031596 IP 192.168.69.201.netbios-ns > 192.168.69.255.netbios-ns: 
NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
23:08:16.031870 IP sma-server2.sma.com.netbios-ns > 
192.168.69.201.netbios-ns: NBT UDP PACKET(137): QUERY; POSITIVE; RESPONSE; 
UNICAST
23:08:16.032579 IP sma-server2.sma.com.dab-sti-c > 
sma-server1.sma.com.domain:  39939+ PTR? 255.69.168.192.in-addr.arpa. (45)
23:08:16.032812 IP sma-server1.sma.com.domain > 
sma-server2.sma.com.dab-sti-c:  39939 NXDomain* 0/1/0 (125)
23:08:16.032963 IP sma-server2.sma.com.dab-sti-c > 
sma-server1.sma.com.domain:  39940+ PTR? 201.69.168.192.in-addr.arpa. (45)
23:08:16.033129 IP sma-server1.sma.com.domain > 
sma-server2.sma.com.dab-sti-c:  39940 NXDomain* 0/1/0 (125)
23:08:16.033318 IP sma-server2.sma.com.dab-sti-c > 
sma-server1.sma.com.domain:  39941+ PTR? 249.69.168.192.in-addr.arpa. (45)
23:08:16.033518 IP sma-server1.sma.com.domain > 
sma-server2.sma.com.dab-sti-c:  39941* 1/1/1 (131)
23:08:16.037441 arp who-has sma-server2.sma.com tell 192.168.69.201
23:08:16.037459 arp reply sma-server2.sma.com is-at 00:e0:81:2a:fb:20


====[ non-working exchange (firewall up) ]====
23:07:32.804324 IP 192.168.69.201.netbios-ns > 192.168.69.255.netbios-ns: 
NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
23:07:32.805138 IP sma-server2.sma.com.dab-sti-c > 
sma-server1.sma.com.domain:  43537+ PTR? 255.69.168.192.in-addr.arpa. (45)
23:07:32.805378 IP sma-server1.sma.com.domain > 
sma-server2.sma.com.dab-sti-c:  43537 NXDomain* 0/1/0 (125)
23:07:32.805559 IP sma-server2.sma.com.dab-sti-c > 
sma-server1.sma.com.domain:  43538+ PTR? 201.69.168.192.in-addr.arpa. (45)
23:07:32.805726 IP sma-server1.sma.com.domain > 
sma-server2.sma.com.dab-sti-c:  43538 NXDomain* 0/1/0 (125)
23:07:32.805874 IP sma-server2.sma.com.dab-sti-c > 
sma-server1.sma.com.domain:  43539+ PTR? 249.69.168.192.in-addr.arpa. (45)
23:07:32.806075 IP sma-server1.sma.com.domain > 
sma-server2.sma.com.dab-sti-c:  43539* 1/1/1 (131)
23:07:33.351994 IP 192.168.69.201.netbios-ns > 192.168.69.255.netbios-ns: 
NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
23:07:33.901577 IP 192.168.69.201.netbios-ns > 192.168.69.255.netbios-ns: 
NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST

-- 
jimoe at sohnen-moe dot com