Netbios is not routable (without help.) Make sure iptables is allowing port 139 and make sure both network segments share a common wins server. This is painfully obvious, but, can you ping from one segment to the other segment?
Have fun.
Andy
Y Makki wrote:
Hello,
I'm faced with a problem on my network, I'll start by describing the structure. The router is a redhat box, with 3 network cards: eth0 goes to the dsl modem, ppp0 eth1 goes to the 192.168.1.0 network which contains a Windows 2000 file server (192.168.1.3) eth2 goes to 192.168.2.0 which contains windows clients, mostly Win98
Is it possible to allow clients to see/use the file server? what I have done so far is add "option netbios-name-servers 192.168.1.3;" to dhcpd.conf and issue the following on the gateway:
ip route add 224.0.0.0/4 dev eth1 route add -net 255.255.255.255 netmask 255.255.255.255 eth1
tcpdump shows some activity when trying to browse network neighborhood from the fileserver:
a client (192.168.2.2) ---------------------- 02:40:58.548757 arp reply 192.168.2.2 is-at 0:40:5:72:f6:6a 02:40:58.549485 192.168.2.2.microsoft-ds > 192.168.1.3.1214: R [tcp sum ok] 0:0(0) ack 673608238 win 0 (ttl 128, id 3584, len 40) 02:40:58.549552 192.168.2.2.netbios-ssn > 192.168.1.3.1215: S [tcp sum ok] 197681:197681(0) ack 673643567 win 8760 <mss 1460,nop,nop,sackOK> (DF) (ttl 128, id 3840, len 48)
the fileserver (192.168.1.3)
----------------------------
02:41:01.476626 192.168.1.3.1215 > 192.168.2.2.netbios-ssn: S [tcp sum
ok] 673643566:673643566(0) win 16384 <mss 1460,nop,nop,sackOK> (DF) (ttl
128, id 13498, len 48)
02:41:01.476736 192.168.1.3.1214 > 192.168.2.2.microsoft-ds: S [tcp sum
ok] 673608237:673608237(0) win 16384 <mss 1460,nop,nop,sackOK> (DF) (ttl
128, id 13499, len 48)
02:41:02.242490 192.168.1.3.1220 > 192.168.1.1.domain: [udp sum ok] 49+
A? 192.gateway.localdomain. [|domain] (ttl 128, id 13500, len 69)
02:41:02.243234 192.168.1.3.netbios-ns > 192.168.1.255.netbios-ns: [udp
sum ok]
NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
TrnID=0x823B OpCode=0 NmFlags=0x11 Rcode=0 QueryCount=1 AnswerCount=0 AuthorityCount=0 AddressRecCount=0 QuestionRecords: Name=192 NameType=0x20 (Server) QuestionType=0x20 QuestionClass=0x1
This goes on for a while, after which win2k says "192.168.2.2" cannot be found. Browsing from the client 192.168.2.2 yields no results.
Any ideas/hints greatly appreciated.
