On Sun, Apr 23, 2023 at 07:37:02PM -0400, Mingwei Zheng wrote:
Hi, I am doing testing work on network protocols and there is one possible issue I noticed in RIP: When packet command is RIP_CMD_UPDATE_REQUEST, the protocol will call function rip_receive_request to respond to request called from rip_rx_hook.
In RFC2453: https://datatracker.ietf.org/doc/html/rfc2453#section-3.9.1
However in the function rip_receive_request, it seems that only one rte is examined.
Hi We handle only the special case: There is one special case. If there is exactly one entry in the request, and it has an address family identifier of zero and a metric of infinity (i.e., 16), then this is a request to send the entire routing table. That is a case used by routing daemons to trigger full table update, while the generic route request was used just for monitoring and is obsolete. -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."