| To: | "David S. Miller" <davem@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [ROUTE] PMTU only works on half the time |
| From: | Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 2 Dec 2003 21:10:25 +1100 |
| Cc: | netdev@xxxxxxxxxxx |
| In-reply-to: | <20031201152215.522c2447.davem@xxxxxxxxxx> |
| References: | <20031201201651.GA20194@xxxxxxxxxxxxxxxxxxx> <20031201204700.GA20349@xxxxxxxxxxxxxxxxxxx> <20031201135154.6906454c.davem@xxxxxxxxxx> <20031201220509.GA20827@xxxxxxxxxxxxxxxxxxx> <20031201142131.5da50a07.davem@xxxxxxxxxx> <20031201152215.522c2447.davem@xxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.5.4i |
On Mon, Dec 01, 2003 at 03:22:15PM -0800, David S. Miller wrote: > > You are speaking of a case of zero source addresses. When would > we output such an iph->saddr, by way of a route? Right now this > is the only part I'm not seeing. You're right. My patch is totally bogus. I misread the ip(8) output. I thought that if src wasn't shown that rt_src must be zero. But in fact it means that rt_src == fl4_src. My problem turns out to be that oif != 0 for the outgoing packets. Since frag_needed only handle cache entries where oif == 0 it never has a chance to work. The application that generated these packets is the RPC code in glibc. Cheers, -- Debian GNU/Linux 3.0 is out! ( http://www.debian.org/ ) Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt |
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