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Bug #467

closed

Unable to use active FTP via second gateway

Added by Danny Bogaards over 14 years ago. Updated over 14 years ago.

Status:
Resolved
Priority:
High
Assignee:
-
Category:
Multi-WAN
Target version:
2.0
Start date:
04/01/2010
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.0
Affected Architecture:

Description

Hi,

I already spoke of this on the forum but I got no response then I found this way of reporting the problem.

I have a dual WAN setup, basically in load balance. I have created two extra group so that particular hosts use particular gateways as default:

A host which is using 'ZIGGOFailsToADSL' will use OPT_1 gateway when up. This works, the PORT command is received even the connect from ftp_host:20 => internal_host:xxxxx works, I see the packets arriving at my internal_host. The Sync/Ack from the internal_host however is send via the default gateway!

captured on vr2
194.109.21.26.20 > 83.85.124.128.36064: Flags [S], seq 2247605301, win 57344, options [mss 1460,nop,wscale 0,nop,nop,TS val 621287970 ecr 0], length 0

captured on vr1
83.85.124.128.36064 > 194.109.21.26.20: Flags [S.], seq 1207193984, ack 2247605302, win 5792, options [mss 1460,nop,nop,TS val 65828173 ecr 621287670,nop,wscale 6], length 0

Note that the packet is send to vr1 with SNAT to the public IP of vr2 (83.85.124.128)

vr2 is connected to a cable modem using DHCP, last upgrade: pfSense-2.0-BETA1-1g-20100329-2138-nanobsd-upgrade, ALIX board

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