Problems with sending userfiles to bots on another box

crazyweb · Post by **crazyweb** » Mon Mar 15, 2004 5:27 am

Hi.
I have som problems with sending userfiles to bots on another box.
Both boxes are standing under a firewall with nat, and none of them have static ip.

What do I have to do to make them send userfiles, this is the error I get:

[10:25] Creating resync buffer for *****
[10:25] Sending user file send request to *****
[10:25] Ending sharing with ***** (Can't connect to you!).
[10:25] (Userlist transmit aborted.)

The variable: nat-ip, am I supposed to put the internal ip for the box, or the external ip to the world?

Thanks

j0n · Post by **j0n** » Mon Mar 15, 2004 8:40 pm

.chaddr bot external.ip:port

the nat-ip is set in the conf as the bot ip, but you can only connect to the external ip (from an outside source).

when you ssh to the shell, you connect to the external ip, not the nat.

if the bot was sharing with a local bot, then only the nap ip would be used.

}eXtreme{ · Post by **}eXtreme{** » Wed Mar 17, 2004 5:37 am

You're not the only one with that problem. From day to day more people have it.

Look at this: http://www.cisco.com/en/US/tech/tk827/t ... 3f1f.shtml

You're not _browsing_ but it's quite the same thing. It's important if the other servers filter ICMP packets. For the internet it's important that ICMP works and they just don't think and filter it. There needs to be an ICMP-filter in place and there needs to be some link which has a MTU below 1500 bytes. This is true, for example, on most ATM links - and on many VLANs. It's also true for tunnels of any kind. The eggdrop developers could do a complete workaround if they just don't set the "DF"-bit on each outgoing packet. It's the combination of the ICMP-filter on one side and some MTU below 1500 on the internet or on the other side. The only final solution could be done on the other side(s). They just need to allow fragmentation-needed-ICMP-requests _or_ they need to clear the DF bit within their router on each outgoing packet.
If anyone of these routers is using an ATM-link with a MTU below 1500 bytes or using VLANs or something else which isn't able to transfer 1500 bytes in one packet, you can't solve the problem on you side. It may work with a userfile below some 1200 bytes but this doesn't really help you. (reference: sewi@Euro-IRC)

It's maybe to late for you, but from day to day more ppl have that problem, vhere bots share channel file but not userfiles.

Moonster · Post by **Moonster** » Fri Mar 19, 2004 4:48 am

In some cases there are firewall issues that keep your userfile from being transferred..... double check all settings and flags between bots and if it doesnt seem to work trying using a diff way to connect to it.

In some cases -- Different Sub Hubs that send the userfile to a shell that they can get to but your main hub cant.