asterisk users - Mar 2007 - Filter IDENT(Port 113) on Linksys router puts remote extensions to one way audio

Hi all,

I just changed router at my clients office and installed a Linksys router
with latest firmware, which gives an option "Filter IDENT(Port 113)"
in its
firewall. If it is checked, remote SIP phones do register but audio goes one
way. If I uncheck it, everything works fine. What I read on the Internet
suggested to keep it turned on due to security reasons, but then how do I
keep my remote extensions working?

-- 
Zeeshan A Zakaria
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One solution I read about it is to forward the port 113 to an unused IP
address. I did so and now phones seems to be working again.
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