Problem seeing network scanner thru firewall

2014-01-10 Thread Sherman Grunewagen
On an F18 machine I have an Epson WF3540 printer/scanner sitting on my LAN. Printing works. I downloaded the free version of VueScan to try it out before purchasing, but it can't see the scanner through the firewall. It just reports "No scanner was found". If I disable the firewall with `syst

Re: Problem seeing network scanner thru firewall

2014-01-11 Thread Jorge Fábregas
On 01/10/2014 11:16 PM, Sherman Grunewagen wrote: > In the output of `iptables -L', I see several lines that look like > >ACCEPT udp -- anywhere 224.0.0.251 udp > dpt:mdns ctstate NEW Hi Sherman, I have no experience with this particular protocol (mdns) bu

Re: Problem seeing network scanner thru firewall

2014-01-11 Thread Sherman Grunewagen
On 01/11/2014 05:43 AM, Jorge Fábregas wrote: On 01/10/2014 11:16 PM, Sherman Grunewagen wrote: In the output of `iptables -L', I see several lines that look like ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns ctstate NEW Hi Sherman, I have no experie

Re: Problem seeing network scanner thru firewall

2014-01-11 Thread Jorge Fábregas
On 01/11/2014 02:45 PM, Sherman Grunewagen wrote: > [root@neuron ~]# firewall-cmd --list-all > public (default, active) >interfaces: em1 >sources: >services: mdns ssh >ports: >masquerade: no >forward-ports: >icmp-blocks: >rich rules: All right. This confirms that y

Re: Problem seeing network scanner thru firewall

2014-01-11 Thread Jorge Fábregas
On 01/11/2014 03:08 PM, Jorge Fábregas wrote: > firewall-cmd --add-rich-rule 'rule family="ipv4" source > address="IP-OF-YOUR-PRINTER" accept' Arrrgh. If I could tell Thunderbird not to hard-wrap specific lines... Here's the line again: http://fpaste.org/67650/67414138/ -- users mailing list use

Re: Problem seeing network scanner thru firewall

2014-01-11 Thread Sherman Grunewagen
On 01/11/2014 11:08 AM, Jorge Fábregas wrote: On 01/11/2014 02:45 PM, Sherman Grunewagen wrote: [root@neuron ~]# firewall-cmd --list-all public (default, active) interfaces: em1 sources: services: mdns ssh ports: masquerade: no forward-ports: icmp-blocks: rich rul

Re: Problem seeing network scanner thru firewall

2014-01-11 Thread Jorge Fábregas
On 01/11/2014 04:37 PM, Sherman Grunewagen wrote: > I'm know almost nothing about network protocols, but I can follow > instructions. :-) > I've posted the output of two invocations of tcpdump at: > > http://ur1.ca/ge1i9 > > In the 1st invocation I used the scanner IP number; in the 2nd the I