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Problems with HTTP when blocking other outgoing ports
- jancia
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28 Jan 2016 12:15 #85185
by jancia
Problems with HTTP when blocking other outgoing ports was created by jancia
Hi there,
I'm struggling with a Vigor 2830, and wondered if anybody can please help.
I'm trying to block all outgoing ports except those that are needed (HTTP(s), SMTP etc.). I've created a "block all out" rule, with the following settings:
Direction: LAN/RT/VPN -> WAN
Source IP: Any
Dest IP: Any
Service Type: Any
Filter: Block If No Further Match
The rule works fine everything is blocked, so I've set allow rules for the acceptable protocols/ports, but I cannot get HTTP (over TCP:80) working. I've even set another rule which allows everything out on my computer's local IP, and HTTP still doesn't work. HTTPS (TCP:443) works fine.
I've tried upgrading the devices firmware, but that didn't help.
Am I missing something, has anyone got any suggestions I could try?
I'm struggling with a Vigor 2830, and wondered if anybody can please help.
I'm trying to block all outgoing ports except those that are needed (HTTP(s), SMTP etc.). I've created a "block all out" rule, with the following settings:
Direction: LAN/RT/VPN -> WAN
Source IP: Any
Dest IP: Any
Service Type: Any
Filter: Block If No Further Match
The rule works fine everything is blocked, so I've set allow rules for the acceptable protocols/ports, but I cannot get HTTP (over TCP:80) working. I've even set another rule which allows everything out on my computer's local IP, and HTTP still doesn't work. HTTPS (TCP:443) works fine.
I've tried upgrading the devices firmware, but that didn't help.
Am I missing something, has anyone got any suggestions I could try?
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- sicon
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29 Jan 2016 14:41 #85203
by sicon
Replied by sicon on topic Re: Problems with HTTP when blocking other outgoing ports
I have just tried to replicate this in a similar way
I created the block all rule (unless further match) the same as yours.
Then I created a LAN>WAN rule with the services I wanted to pass (80 and 443).
Before I enabled the Pass rules I tested the block and I couldn't get to any sites.
I then enabled the Pass Rule and it worked fine (DNS was going out of a different line and provided by a server onsite)
Is DNS your issue, does you PASS rule include port 53 for lookups?
I created the block all rule (unless further match) the same as yours.
Then I created a LAN>WAN rule with the services I wanted to pass (80 and 443).
Before I enabled the Pass rules I tested the block and I couldn't get to any sites.
I then enabled the Pass Rule and it worked fine (DNS was going out of a different line and provided by a server onsite)
Is DNS your issue, does you PASS rule include port 53 for lookups?
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