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All Forums > Tech Talk > Tech Talk Forum Page 31 > DSL and Router Config
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jayo All-Star Supporter
All-Star Member


2117 Posts
7/04
Posted - Sep 23 2007 : 6:04PM
I thought I'd ask here. My service provider (Earthlink) seems unwilling to share any information beyond the "plug it in and push this button" kind of instruction. So I have no idea how far out my ass is hanging.
I replaced my old DSL "modem" with the new one they sent. The old one was pretty simple, but the new one is also a router. I'm trying to double check the security settings. There are no help files that I can find, so I'm just guessing.
Anyway, it appears I have the ability to block the following:
Telnet - Telnet traffic is blocked from the WAN to the LAN
FTP - FTP traffic is blocked from the WAN to the LAN
TFTP - TFTP traffic is blocked from the WAN to the LAN
Web - Web traffic is blocked from the WAN to the LAN
SNMP - SNMP traffic is blocked from the WAN
Ping - Ping traffic is blocked from the WAN / LAN
Which ones do I want to block? I recognize some of these (e.g. Telnet and FTP) but some of these are new to me.
(And before anyone asks: yes, I already changed the master router password to something hard-to-guess.)
(edited for clarity)
Edited by - jayo on Sep 23 2007
willywilly
Member

Activated Member
662 Posts
2/05
Posted - Sep 23 2007 : 7:06PM
What is the make and model number? Maybe somebody can find some docs somewhere.
jayo All-Star Supporter
All-Star Member

2117 Posts
7/04
Posted - Sep 23 2007 : 7:28PM
ZyXel P660R-ELNK
I can't find one anywhere. Zyxel's site has 800 versions but not that particular one. I looked at a couple that I thought were close, and they are very close. But they don't mention the Security tab, or how to properly secure the router.
Of course, Earthlink wants you to buy their software...
This sort of thing pisses me off no end. I understand why they want to make it easy for people who don't want to be bothered with optimizing our configuration, but it ought to be there for those of us who do.
RandomPrecision
Senior Member

Enjoy!
8175 Posts
3/06
Posted - Sep 23 2007 : 10:03PM
Yeah. All those settings and shit are really tedious unless you're a tech geek. Fortunately, mine seems to work OK most of the time so I don't try and tweak the settings. If I ever had to change them to get my connection working or something, I'd be royally fucked though. I'd end up throwing something heavy.
justalurker
Member

241 Posts
8/03
Posted - Sep 23 2007 : 10:49PM
You can safely disable all those settings. Keep the web and FTP open if you use them or have problems accessing some sites.
TFTP is short for Trivial File Transfer Protocol. FTP lite if you wish. Disable this.
SNMP is short for Simple Network Management Protcol, and unless you need to manage your network from the net disable this.
PING is a protcol that uses little packets to establish that there is a connection present, disable this as well.
And don't assume a router is going to protect you from the nasties, continue to use a good firewall on all your machines.
Edited by - justalurker on 9/23/2007 10:54:15 PM
 
Hardware All-Star Supporter
All-Star Member

Your other left
14594 Posts
3/02
Posted - Sep 24 2007 : 5:53AM
All the settings you mention block incoming traffic from initiating sessions with your computer. Unless you are planning on running any type of web server leave them blocked.
However, as justalurker suggests, don't rely on this firewall unless you know that it denies all other forms of inbound traffic by default.
jayo All-Star Supporter
All-Star Member

2117 Posts
7/04
Posted - Sep 24 2007 : 9:22PM
Thank you, everyone. I appreciate it.
Yes, I'm running a software firewall, a spyware scanner, a virus scanner, et al. But I wanted to set the hardware firewall correctly too.



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