223222 - Mozilla caches an IP address forever, and will not resolved if client is moved from one network to another

Status: RESOLVED DUPLICATE of bug 162871

(Core :: Networking, defect)

Description

[Andy Harris]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.5) Gecko/20031007
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.5) Gecko/20031007

It appears that Mozilla is caching the IP address of a http host.  If one has a
Mac that one moved from one net to another (where internal and external
addressing is used) it is not possible to continue browsing without a full
restart of Mozilla.  Using the arp command it can be clearly seen that the Mac
has resolved the new IP address and mac address

Reproducible: Always

Steps to Reproduce:
1. http to a system on an internal net with address say 10.0.0.1
2. go home
3. surf to same system (whose address is now 193.x.x.x)
4. Observe problem
5. Restart mozilla (be sure to close all mozilla instances)
6. Works ok.
7. Use Safari - note that issue does not occur!

Actual Results:  
Mozilla could not reach the http host

Expected Results:  
It should have queried the lower layers of the network, got the new IP address
and continued in a transparent fashion

Its only problem for Mac's or any other machine that is not generally rebooted
between locations.

Comment 1

[Matthias Versen [:Matti]]

Can you please test a 1.6a nightly because the DNS code changed from 1.5 to 1.6
and this should now work.

Comment 2

[Olivier Cahagne]

aka DNS Pinning, covered by bug 205726, which suppressed DNS Pinning. Download a
nightly build and compare behaviour:
http://ftp.mozilla.org/pub/mozilla.org/mozilla/nightly/latest-trunk/

Comment 3

[timeless]

*** This bug has been marked as a duplicate of 162871 ***

Comment 4

[timeless]

*** This bug has been marked as a duplicate of 162871 ***

*** This bug has been marked as a duplicate of 162871 ***